Microwave antenna design, cerebral hemorrhage detection method and related device

Abstract

The invention relates to a microwave antenna design, a cerebral hemorrhage detection method and a related device, and relates to the technical field of biomedical engineering. The wave antenna design method comprises the following steps: acquiring a first curved surface dielectric layer with a first set curved surface radian and a second curved surface dielectric layer with a second set curved surface radian; a plurality of groups of first radiation patches with a first set size and a plurality of groups of second radiation patches with a second set size are respectively arranged on the first curved surface dielectric layer and the second curved surface dielectric layer; and under the condition that the beam width corresponding to the set decibel on the directional diagram main lobe of the microwave antenna under the set working frequency reaches the set angle, determining the corresponding set distance between the opposite ends of the two ends of the first curved surface dielectric layer and the second curved surface dielectric layer. According to the embodiment of the invention, cerebral hemorrhage detection or corresponding input reflection coefficient signal detection can be realized.

Description

Technical Field

[0001] The present disclosure relates to the field of biomedical engineering technology, and in particular to a microwave antenna design, a cerebral hemorrhage detection method and related devices. Background Art

[0002] Stroke (also known as "stroke") is the most common acute cerebrovascular disease in my country, with the characteristics of high morbidity, high disability rate and high mortality rate, which seriously threatens the life safety of patients. Among them, intracerebral hemorrhage (ICH) accounts for about 10%-20% of all strokes, and its main causes are long-term hypertension and arteriosclerosis. The blood pressure of most patients rises significantly when they develop the disease, causing blood vessel rupture and cerebral hemorrhage. Studies have shown that the mortality rate of ICH in the first month is about 40%, the mortality rate and morbidity rate within the first year are 75%, and only 20% of patients can recover the ability to take care of themselves after 6 months. The cost of treating cerebrovascular diseases in my country is nearly 20 billion yuan each year, which brings a heavy burden to the country and many families. At the same time, the treatment process of stroke is complicated, and the optimal treatment time window is short, which brings major challenges to patients and doctors. In response to the above problems, the "Work Plan for Comprehensive Prevention and Treatment of Stroke" formulated by the General Office of the National Health and Family Planning Commission and the General Office of the State Administration of Traditional Chinese Medicine encourages the promotion of stroke prevention and treatment research and stroke-related scientific research projects, and supports the development of appropriate technologies for stroke prevention, diagnosis and treatment. The State Council has specially established the "Cardiovascular and Cerebrovascular Disease Prevention and Treatment Action" among the 15 special actions of the "Healthy China Action (2019-2030)" to increase support for scientific and technological achievements in the prevention and treatment of cardiovascular and cerebrovascular diseases with outstanding application value, and strengthen the transformation and promotion of scientific and technological achievements.

[0003] At present, computed tomography (CT) and magnetic resonance imaging (MRI) are commonly used clinical methods for detecting cerebral hemorrhage. CT technology is the gold standard for early cerebral hemorrhage examination and can accurately locate the bleeding focus. However, it uses X-rays as the imaging medium, which produces ionizing radiation to the human body during the examination. Excessive radiation can cause cell deformity and cancer. MRI has a high sensitivity to small changes in blood metabolites and brain tissue water content, but its examination time is too long. It will take more than 15 minutes for patients to undergo a head scan, which is easy to miss the golden emergency time. The above two devices also have the problem of high prices. The high cost of the equipment will result in a brain CT or MRI examination costing hundreds of yuan. In addition, these two types of equipment are bulky and difficult to move, and are not suitable for bedside detection and pre-hospital emergency treatment. Therefore, the development of a low-cost, non-invasive, non-ionizing radiation, fast and portable detection technology is of great significance for the early diagnosis and treatment of patients with cerebral hemorrhage. Summary of the invention

[0004] The present disclosure proposes a technical solution for microwave antenna design, cerebral hemorrhage detection method and related devices.

[0005] According to one aspect of the present disclosure, a microwave antenna design method is provided, including: obtaining a first curved dielectric layer with a first set curved curvature and a second curved dielectric layer with a second set curved curvature; respectively arranging multiple groups of first radiation patches of a first set size and multiple groups of second radiation patches of a second set size on the first curved dielectric layer and the second curved dielectric layer; and determining a set distance corresponding to opposite ends of the first curved dielectric layer and the second curved dielectric layer under the condition that a beam width corresponding to a set decibel on a main lobe of a microwave antenna's radiation pattern at a set operating frequency reaches a set angle.

[0006] According to one aspect of the present disclosure, a microwave antenna design method is provided, including: obtaining a first curved dielectric layer with a first variable curved surface curvature and a second curved dielectric layer with a second variable curved surface curvature; respectively arranging a plurality of first radiation patches of a first set size and a plurality of second radiation patches of a second set size on the first curved dielectric layer and the second curved dielectric layer; configuring the corresponding distance between the opposite ends of the first curved dielectric layer and the second curved dielectric layer as a set distance; determining the first variable curved surface curvature and the second variable curved surface curvature under the set distance and under the condition that the beam width corresponding to a set decibel on the main lobe of the microwave antenna's radiation pattern at a set operating frequency reaches a set angle.

[0007] Preferably, the method for determining the first set size corresponding to each radiation patch or sub-radiation patch in the plurality of groups of first radiation patches comprises: obtaining the set resonant frequency f r , the first conductivity μ corresponding to the first dielectric layer 01 , a first thickness h1 and a first relative dielectric constant ε r1 Based on the setting resonant frequency f r , the first conductivity μ 01 , the first thickness h1 and the first relative dielectric constant ε r1 , determine the first width corresponding to the first set size of each radiation patch or sub-radiation patch; obtain the first equivalent dielectric constant ε of the feeding mechanism connected to each radiation patch or sub-radiation patch and arranged on the first dielectric layer rε1 According to the first width, the first thickness h1 and the first relative dielectric constant ε r1 Determine the corresponding first stretching length ΔL1; according to the first equivalent dielectric constant ε rε1 And the first stretching length ΔL1 determines the first length corresponding to the first set size of each radiation patch or sub-radiation patch.

[0008] Preferably, the method for determining the second set size corresponding to each radiation patch or sub-radiation patch in the plurality of groups of second radiation patches comprises: obtaining the set resonant frequency f r , the second conductivity μ corresponding to the second dielectric layer 02 , the second thickness h2 and the second relative dielectric constant ε r2 Based on the setting resonant frequency f r The second conductivity μ 02 , the second thickness h2 and the second relative dielectric constant ε r2 , determine the second width corresponding to the second set size of each radiation patch or sub-radiation patch; obtain the second equivalent dielectric constant ε of the feeding mechanism connected to each radiation patch or sub-radiation patch and arranged on the second dielectric layer rε2 According to the second width, the second thickness h2 and the second relative dielectric constant ε r2 Determine the corresponding second stretching length ΔL2; according to the second relative dielectric constant ε r2 And the second stretching length ΔL2 determines the second length corresponding to the second set size of each radiation patch or sub-radiation patch.

[0009] Preferably, the first set curved surface curvature is the same as the second set curved surface curvature; wherein the first variable curved surface curvature is the same as the second variable curved surface curvature; wherein the first set size and the second set size are the same; wherein, at the operating frequency, the set decibel configuration on the main lobe of the radiation pattern corresponding to the microwave antenna is 3 decibels; wherein, at the operating frequency, the beam width corresponding to the set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna reaches a set angle of 120 degrees.

[0010] Preferably, the first length, first width and first thickness of the first curved dielectric layer are determined based on the first sub-length, first sub-width and first thickness corresponding to the first dielectric layer and the first size corresponding to each radiation patch or sub-radiation patch on the first dielectric layer and the number of radiation patches or sub-radiation patches.

[0011] Preferably, the second length, second width and second thickness of the second curved dielectric layer are determined based on the second sub-length, second sub-width and second thickness corresponding to the second dielectric layer and the second size corresponding to each radiation patch or sub-radiation patch on the second dielectric layer and the number of radiation patches or sub-radiation patches.

[0012] Preferably, it also includes: a first grounding layer and a second grounding layer are respectively arranged on opposite sides of multiple groups of first radiation patches and multiple groups of second radiation patches on the first curved surface dielectric layer and the second curved surface dielectric layer; and / or, the first grounding layer covers one side of the first curved surface dielectric layer; and / or, the second grounding layer covers one side of the second curved surface dielectric layer.

[0013] Preferably, the materials of the first curved surface dielectric layer and the second curved surface dielectric layer are configured as one or more of polytetrafluoroethylene, Taconite, ceramics, polyimide, and polymer compounds formed by polymerization of tetrafluoroethylene; wherein, the first curved surface dielectric layer and the second curved surface dielectric layer are configured as one or more of polytetrafluoroethylene plate, tetrafluoro plate, Teflon plate, and Teflon plate.

[0014] Preferably, the first curved surface dielectric layer and the second curved surface dielectric layer have the same shape; and / or the first curved surface dielectric layer and the second curved surface dielectric layer have the same shape and are configured as rectangles.

[0015] According to one aspect of the present disclosure, there is provided a microwave antenna design device, comprising:

[0016] A first acquisition unit is used to acquire a first curved surface medium layer with a first set curved surface curvature and a second curved surface medium layer with a second set curved surface curvature;

[0017] A first setting unit, used for setting a plurality of groups of first radiation patches of a first set size and a plurality of groups of second radiation patches of a second set size on the first curved surface dielectric layer and the second curved surface dielectric layer respectively;

[0018] The first determination unit is used to determine the corresponding set distance between the opposite ends of the first curved surface dielectric layer and the second curved surface dielectric layer under the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna's directional pattern at the set working frequency reaches the set angle.

[0019] According to one aspect of the present disclosure, there is provided a microwave antenna design device, comprising: a second acquisition unit, configured to acquire a first curved surface dielectric layer of a first variable curved surface curvature and a second curved surface dielectric layer of a second variable curved surface curvature;

[0020] A second setting unit is used to respectively set a plurality of groups of first radiation patches of a first set size and a plurality of groups of second radiation patches of a second set size on the first curved surface dielectric layer and the second curved surface dielectric layer;

[0021] A configuration unit, configured to configure the corresponding distance between the opposite ends of the first curved surface dielectric layer and the second curved surface dielectric layer as a set distance;

[0022] The second determination unit determines the first variable curved surface curvature and the second variable curved surface curvature under the set distance and the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna's directional pattern at the set working frequency reaches a set angle.

[0023] According to one aspect of the present disclosure, a microwave antenna design device is provided, comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to call the instructions stored in the memory to execute the above-mentioned microwave antenna design method and / or cerebral hemorrhage detection method.

[0024] According to one aspect of the present disclosure, a microwave antenna design device is provided, comprising: a computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the above-mentioned microwave antenna design method and / or cerebral hemorrhage detection method.

[0025] According to one aspect of the present disclosure, a microwave antenna design device is provided, comprising: a computer program product on which a computer program / instruction is set, characterized in that the computer program / instruction implements the above-mentioned microwave antenna design method and / or cerebral hemorrhage detection method when executed by a processor.

[0026] According to one aspect of the present disclosure, there is provided a microwave antenna designed by applying the above-mentioned microwave antenna design method.

[0027] According to one aspect of the present disclosure, there is provided a microwave antenna designed using the microwave antenna design device as described above.

[0028] According to one aspect of the present disclosure, a microwave antenna is provided, comprising: a first curved dielectric layer with a first set curved surface curvature and a second curved dielectric layer with a second set curved surface curvature; a first excitation port and a second excitation port are respectively provided on the first curved dielectric layer and the second curved dielectric layer; wherein the first curved dielectric layer and the second curved dielectric layer are also respectively provided with a plurality of groups of first radiation patches connected to the first excitation port and a plurality of groups of second radiation patches connected to the second excitation port; a set distance between opposite ends of the first curved dielectric layer and the second curved dielectric layer satisfies that the beam width corresponding to a set decibel on the main lobe of the microwave antenna's radiation pattern at the operating frequency reaches a set angle.

[0029] Preferably, the first curved surface dielectric layer and the second curved surface dielectric layer have the same shape; wherein the first curved surface dielectric layer and the second curved surface dielectric layer have the same shape and are configured as rectangles.

[0030] Preferably, at the operating frequency, the set decibel configuration on the main lobe of the radiation pattern corresponding to the microwave antenna is 3 decibels; at the operating frequency, the beam width corresponding to the set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna reaches a set angle of 120 degrees.

[0031] Preferably, the shape of each sub-radiation patch of each group of first radiation patches in the multiple groups of first radiation patches and the shape of each sub-radiation patch of each group of second radiation patches in the multiple groups of second radiation patches are the same; and / or the shape of each sub-radiation patch of each group of first radiation patches and each sub-radiation patch of each group of second radiation patches with the same shape are configured as rectangles.

[0032] Preferably, it also includes: an excitation source connected to the first excitation port and / or the second excitation port respectively; wherein the excitation source is used to send excitation signals to the multiple groups of first radiation patches and / or the multiple groups of second radiation patches.

[0033] Preferably, the material of the first curved surface dielectric layer and the second curved surface dielectric layer is configured as one or more of polytetrafluoroethylene, Taconite, ceramics, polyimide, and polymer compounds formed by polymerization of tetrafluoroethylene; and / or, the first curved surface dielectric layer and the second curved surface dielectric layer are configured as one or more of polytetrafluoroethylene plate, tetrafluoro plate, Teflon plate, and Teflon plate.

[0034] Preferably, it also includes: a first ground layer; the first ground layer is arranged on one side of the first curved surface dielectric layer; the multiple groups of first radiation patches are arranged on the other side of the first curved surface dielectric layer; and / or the first ground layer arranged on one side of the first curved surface dielectric layer covers one side of the first curved surface dielectric layer.

[0035] Preferably, each radiation patch or each sub-radiation patch in the multiple groups of first radiation patches and / or the multiple groups of second radiation patches is provided with an inward groove on one side of the feeding mechanism connected thereto, and the feeding mechanism is connected to each corresponding radiation patch through the groove.

[0036] According to one aspect of the present disclosure, a method for simulating cerebral hemorrhage detection is provided, including or applying a microwave antenna designed by the microwave antenna design method as described above, or including or applying a microwave antenna as described above; and obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; based on the input reflection coefficient signal, determining whether the head bionic model in the brain accommodation space has one or more of a hematoma corresponding to the bleeding, a degree of bleeding, and a hematoma location.

[0037] Preferably, the method for determining the head bionic model includes: performing skull, brain parenchyma, cerebrospinal fluid and hematoma segmentation on a brain image to obtain a corresponding brain morphology; and respectively determining electromagnetic parameters corresponding to the skull, the brain parenchyma, the cerebrospinal fluid and the hematoma; and performing three-dimensional reconstruction based on the brain morphology and the corresponding electromagnetic parameters to construct a head bionic model.

[0038] Preferably, the method for determining whether there is a hematoma corresponding to bleeding in the head bionic model in the brain accommodation space based on the input reflection coefficient signal includes: obtaining a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding and a second bionic model to be detected; transmitting a microwave signal to the second head bionic model using the microwave antenna, and receiving a first input reflection coefficient signal corresponding to the second head bionic model; determining whether there is a hematoma corresponding to bleeding in the second bionic model to be detected based on the first input reflection coefficient signal and the first preset input reflection coefficient signal; wherein the microwave signal transmitted to the second head bionic model using the microwave antenna is the same as the operating frequency corresponding to the first preset input reflection coefficient signal.

[0039] Preferably, the method for determining the first preset input reflection coefficient signal corresponding to the first head bionic model without bleeding includes: obtaining the first head bionic model corresponding to the first head bionic model without bleeding; using the microwave antenna to transmit a microwave signal to the first head bionic model, and receiving the first preset input reflection coefficient signal corresponding to the first head bionic model.

[0040] Preferably, the method for determining whether there is a hematoma corresponding to the bleeding in the second bionic model to be detected based on the first input reflection coefficient signal and the first preset input reflection coefficient signal includes: if the numerical value corresponding to the first input reflection coefficient signal is greater than or equal to the numerical value corresponding to the first preset input reflection coefficient signal, then there is a hematoma corresponding to the bleeding in the second bionic model to be detected; otherwise, there is no hematoma corresponding to the bleeding in the second bionic model to be detected.

[0041] Preferably, the method for determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal includes: obtaining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematomas of different degrees corresponding to the bleeding and the second bionic model to be detected; if the second bionic model has a hematoma corresponding to the bleeding; then using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a second input reflection coefficient signal corresponding to the second head bionic model; determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the second input reflection coefficient signal and the multiple preset input reflection coefficient signal intervals; wherein the microwave signal emitted to the second head bionic model by using the microwave antenna is the same as the operating frequency corresponding to the determination of the multiple preset input reflection coefficient signal intervals.

[0042] Preferably, the method for determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematoma of different degrees corresponding to the bleeding includes: respectively acquiring multiple third head bionic models of hematoma of different degrees corresponding to the bleeding; respectively transmitting microwave signals to the multiple third head bionic models using the microwave antenna, and receiving input reflection coefficient signals corresponding to the multiple third head bionic models; dividing the intervals according to the input reflection coefficient signals corresponding to the multiple third head bionic models, and determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematoma of different degrees corresponding to the bleeding.

[0043] Preferably, the degree of bleeding is configured as mild bleeding degree, moderate bleeding degree, and severe bleeding degree, and the mild bleeding degree, the moderate bleeding degree, and the severe bleeding degree respectively correspond to the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval of the multiple preset input reflection coefficient signal intervals; based on the fact that the second input reflection coefficient signal corresponding to the second head bionic model falls within the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval, the different degrees of hematoma corresponding to the second head bionic model are determined.

[0044] Preferably, the method for determining the position of a hematoma corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal comprises: if there is a hematoma corresponding to bleeding in the second bionic model; then determining the position information corresponding to the second input reflection coefficient signal corresponding to the second head bionic model; if the position information is in the set left brain area, then the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0045] According to one aspect of the present disclosure, a cerebral hemorrhage detection simulation device is provided, comprising or applying a microwave antenna designed by the microwave antenna design method as described above; or, comprising or applying a microwave antenna as described above; and,

[0046] A third acquisition unit is used to acquire an input reflection coefficient signal corresponding to the head bionic model in the brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer;

[0047] The third determination unit is used to determine, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, the degree of bleeding and one or more of the hematoma position in the head bionic model in the brain accommodation space.

[0048] According to one aspect of the present disclosure, a brain hemorrhage detection simulation device is provided, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute: obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; and determining, based on the input reflection coefficient signal, whether the head bionic model in the brain accommodation space has one or more of a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma location.

[0049] According to one aspect of the present disclosure, a brain hemorrhage detection simulation device is provided, comprising: a computer-readable storage medium having computer program instructions stored thereon, wherein when the computer program instructions are executed by a processor, the device is implemented to: obtain an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; and determine, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, the degree of bleeding, and the location of the hematoma in the head bionic model in the brain accommodation space.

[0050] According to one aspect of the present disclosure, a brain hemorrhage detection simulation device is provided, including: a computer program product, on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, it is implemented to: obtain an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; and determine whether there is a hematoma corresponding to bleeding, the degree of bleeding and one or more of the hematoma position in the head bionic model in the brain accommodation space based on the input reflection coefficient signal.

[0051] Preferably, the cerebral hemorrhage detection simulation device also includes: a head bionic model construction unit, including: performing skull, brain parenchyma, cerebrospinal fluid and hematoma segmentation on the brain image to obtain the corresponding brain morphology; and respectively determining the electromagnetic parameters corresponding to the skull, the brain parenchyma, the cerebrospinal fluid and the hematoma; performing three-dimensional reconstruction based on the brain morphology and the corresponding electromagnetic parameters to construct a head bionic model.

[0052] Preferably, the third determination unit comprises: a first sub-determination unit, a method for determining whether there is a hematoma corresponding to bleeding in the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: obtaining a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding and a second bionic model to be detected; using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a first input reflection coefficient signal corresponding to the second head bionic model; based on the first input reflection coefficient signal and the first preset input reflection coefficient signal, determining whether there is a hematoma corresponding to bleeding in the second bionic model to be detected; wherein the microwave signal transmitted to the second head bionic model using the microwave antenna is the same as the operating frequency corresponding to the determination of the first preset input reflection coefficient signal.

[0053] Preferably, the method for determining the first preset input reflection coefficient signal corresponding to the first head bionic model without bleeding includes: obtaining the first head bionic model corresponding to the first head bionic model without bleeding; using the microwave antenna to transmit a microwave signal to the first head bionic model, and receiving the first preset input reflection coefficient signal corresponding to the first head bionic model.

[0054] Preferably, the method for determining whether there is a hematoma corresponding to the bleeding in the second bionic model to be detected based on the first input reflection coefficient signal and the first preset input reflection coefficient signal includes: if the numerical value corresponding to the first input reflection coefficient signal is greater than or equal to the numerical value corresponding to the first preset input reflection coefficient signal, then there is a hematoma corresponding to the bleeding in the second bionic model to be detected; otherwise, there is no hematoma corresponding to the bleeding in the second bionic model to be detected.

[0055] Preferably, the third determination unit includes: a second sub-determination unit, a method for determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: obtaining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of different degrees of hematoma corresponding to the bleeding and the second bionic model to be detected; if the second bionic model has a hematoma corresponding to the bleeding; then using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a second input reflection coefficient signal corresponding to the second head bionic model; determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the second input reflection coefficient signal and the multiple preset input reflection coefficient signal intervals; wherein the microwave signal emitted to the second head bionic model by the microwave antenna is the same as the working frequency corresponding to the determination of the multiple preset input reflection coefficient signal intervals.

[0056] Preferably, the method for determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematoma of different degrees corresponding to the bleeding includes: respectively acquiring multiple third head bionic models of hematoma of different degrees corresponding to the bleeding; respectively transmitting microwave signals to the multiple third head bionic models using the microwave antenna, and receiving input reflection coefficient signals corresponding to the multiple third head bionic models; dividing the intervals according to the input reflection coefficient signals corresponding to the multiple third head bionic models, and determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematoma of different degrees corresponding to the bleeding.

[0057] Preferably, the degree of bleeding is configured as mild bleeding degree, moderate bleeding degree, and severe bleeding degree, and the mild bleeding degree, the moderate bleeding degree, and the severe bleeding degree respectively correspond to the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval of the multiple preset input reflection coefficient signal intervals; based on the fact that the second input reflection coefficient signal corresponding to the second head bionic model falls within the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval, the different degrees of hematoma corresponding to the second head bionic model are determined.

[0058] Preferably, the third determination unit comprises: a third sub-determination unit, a method for determining the position of a hematoma corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: if there is a hematoma corresponding to bleeding in the second bionic model; then determining the position information corresponding to the second input reflection coefficient signal corresponding to the second head bionic model; if the position information is in the set left brain area, then the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0059] According to one aspect of the present disclosure, a cerebral hemorrhage detection device is provided, comprising or applying a microwave antenna designed by the microwave antenna design method as described above; or, comprising or applying the microwave antenna as described above; or, applying the cerebral hemorrhage detection simulation method as described above; or, comprising or applying the cerebral hemorrhage detection simulation device as described above; and,

[0060] A fourth acquisition unit is used to acquire an input reflection coefficient signal corresponding to the brain to be detected in the brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer;

[0061] A fourth determining unit is used to determine whether there is a hematoma corresponding to bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and the first head bionic model without bleeding or the first preset input reflection coefficient signal corresponding to the first brain without bleeding;

[0062] The judgment and execution unit is used to generate a hematoma degree detection instruction and / or a hematoma position detection instruction if there is a hematoma corresponding to the bleeding in the brain to be detected; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, determine the bleeding degree corresponding to the brain to be detected in the brain accommodating space based on the input reflection coefficient signal corresponding to the brain to be detected and a third head bionic model of different degrees of hematomas corresponding to the bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains with different degrees of hematomas corresponding to the bleeding; or determine the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0063] According to one aspect of the present disclosure, there is provided a brain hemorrhage detection device, comprising: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute: obtaining an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining whether there is a hematoma corresponding to the bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first brain without bleeding; if there is a hematoma corresponding to the bleeding in the brain to be detected, A hematoma degree detection instruction and / or a hematoma position detection instruction is generated; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the degree of bleeding corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematoma corresponding to the bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains of different degrees of hematoma corresponding to the bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0064] According to one aspect of the present disclosure, a brain hemorrhage detection device is provided, comprising: a computer-readable storage medium having computer program instructions stored thereon, wherein when the computer program instructions are executed by a processor, the following are achieved: obtaining an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining whether there is a hematoma corresponding to the hemorrhage in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first brain without bleeding; and generating a hematoma corresponding to the hemorrhage in the brain to be detected if there is a hematoma corresponding to the hemorrhage in the brain to be detected. Hematoma degree detection instruction and / or hematoma position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the degree of bleeding corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematoma corresponding to bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains with different degrees of hematoma corresponding to bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0065] According to one aspect of the present disclosure, a brain hemorrhage detection device is provided, including: a computer program product, on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, the following is achieved: obtaining an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining whether there is a hematoma corresponding to the bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first brain without bleeding; if there is a hematoma corresponding to the bleeding in the brain to be detected, generating a hematoma signal. degree detection instruction and / or hematoma position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the degree of bleeding corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematoma corresponding to bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains of different degrees of hematoma corresponding to bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0066] In the embodiments of the present disclosure, the present disclosure proposes a technical solution for microwave antenna design, cerebral hemorrhage detection method and related devices to solve at least one of the technical problems of current CT and MRI brain image examinations, such as the presence of ionizing radiation, high cost, long time resulting in easy missing of golden emergency time, and unsuitability for bedside detection and pre-hospital emergency treatment.

[0067] It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

[0068] Further features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments consistent with the present disclosure and are used to illustrate the technical solutions of the present disclosure together with the specification.

[0070] Figure 1 is a schematic structural diagram corresponding to the microwave antenna of an embodiment of the present invention;

[0071] Figure 2 is a schematic diagram of a first feeding mechanism slot provided in a first curved dielectric layer in a microwave antenna according to an embodiment of the present invention;

[0072] Figure 3is the RC equivalent circuit of the biological tissue of an embodiment of the present invention;

[0073] Figure 4 is a biological tissue complex electrical impedance trajectory diagram of an embodiment of the present invention;

[0074] Figure 5 is a schematic structural diagram corresponding to the microwave antenna of an embodiment of the present invention;

[0075] Figure 6 is the standing wave ratio corresponding to each sub-radiation patch in the microwave antenna of the embodiment of the present invention;

[0076] Figure 7 is the gain corresponding to the 2D and 3D directions of each sub-radiation patch in the microwave antenna of the embodiment of the present invention;

[0077] Figure 8 It is a schematic diagram of ports corresponding to a vector network analyzer for measuring S parameters of each sub-radiation patch in a microwave antenna according to an embodiment of the present invention;

[0078] Fig. 9 is an S parameter corresponding to each sub-radiation patch in the microwave antenna measured in an embodiment of the present invention;

[0079] Fig.10 is a schematic diagram of structural parameters corresponding to a measuring microwave antenna according to an embodiment of the present invention;

[0080] Fig.11 is the S parameter of the microwave antenna corresponding to the measurement microwave antenna in the embodiment of the present invention;

[0081] Fig.12 is the standing wave ratio of the microwave antenna corresponding to the measuring microwave antenna in the embodiment of the present invention;

[0082] Fig.13 is the gain corresponding to the 2D and 3D directions of the microwave antenna of the embodiment of the present invention;

[0083] Fig.14 is the S corresponding to the microwave antenna of the embodiment of the present invention and the microwave antenna with the head bionic model added 11 Curve comparison chart;

[0084] Fig.15 is the S of the three bleeding rates at 1.94 to 1.96 GHz in the embodiment of the present invention. 11 curve;

[0085] Fig.16 is S at two different positions at 1.94-1.96 GHz in the embodiment of the present invention 11 curve;

[0086] Fig.17is a block diagram of an electronic device 800 according to an exemplary embodiment;

[0087] Fig.18 is a block diagram of an electronic device 1900 according to an exemplary embodiment. DETAILED DESCRIPTION

[0088] Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise specified.

[0089] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0090] The term "and / or" herein is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the term "at least one" herein represents any combination of at least two of any one or more of a plurality of. For example, including at least one of A, B, and C can represent including any one or more elements selected from the set consisting of A, B, and C.

[0091] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific embodiments. It should be understood by those skilled in the art that the present disclosure can also be implemented without certain specific details. In some examples, methods, means, components and circuits well known to those skilled in the art are not described in detail in order to highlight the subject matter of the present disclosure.

[0092] It can be understood that the above-mentioned various method embodiments mentioned in the present disclosure can be combined with each other to form a combined embodiment without violating the principle logic. Due to space limitations, the present disclosure will not go into details.

[0093] In addition, the present disclosure also provides devices related to microwave antenna design and cerebral hemorrhage simulation detection. For example, the related devices may include electronic devices, computer-readable storage media, and program products, all of which can be used to implement any microwave antenna design and cerebral hemorrhage simulation detection method provided by the present disclosure. The corresponding technical solutions and descriptions are referred to the corresponding records in the microwave antenna design and cerebral hemorrhage simulation detection method section, and will not be repeated here.

[0094] Figure 1 Schematic diagram of the structure of the microwave antenna according to the embodiment of the present invention. The present disclosure provides a microwave antenna design method, referring to Figure 1As shown, the microwave antenna design method includes: step S101: obtaining a first curved surface dielectric layer 1a with a first set curved surface curvature and a second curved surface dielectric layer 1b with a second set curved surface curvature; step S102: arranging multiple groups of first radiation patches of a first set size and multiple groups of second radiation patches of a second set size on the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b respectively; step S103: determining the corresponding set distance between the opposite ends of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b under the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna pattern at the set working frequency reaches the set angle. To solve at least one of the technical problems of CT and MRI brain image examinations, such as ionizing radiation, high cost, long time, easy to miss the golden emergency time, and unsuitable for bedside detection and pre-hospital emergency.

[0095] Figure 1 Schematic diagram of the structure of the microwave antenna according to the embodiment of the present invention. The present disclosure provides a microwave antenna design method, referring to Figure 1 As shown, the microwave antenna design method includes: step S201: obtaining a first curved surface dielectric layer 1a with a first variable curved surface curvature and a second curved surface dielectric layer 1b with a second variable curved surface curvature; step S202: arranging multiple groups of first radiation patches of a first set size and multiple groups of second radiation patches of a second set size on the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b respectively; step S203: configuring the corresponding distance between the opposite ends of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b as a set distance; step S204: determining the first variable curved surface curvature and the second variable curved surface curvature under the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna pattern at the set working frequency reaches the set angle. To solve at least one of the technical problems of CT and MRI brain image examinations, such as ionizing radiation, high cost, long time leading to easy missing of golden emergency time, and unsuitability for bedside detection and pre-hospital emergency.

[0096] In the embodiments of the present disclosure and other possible embodiments, microwave detection technology is a new detection technology that uses an external antenna to transmit electromagnetic waves through the air to pass through human tissues, and uses changes in electromagnetic parameters to detect and image human tissues. Cerebral hemorrhage is a common brain disease. When cerebral hemorrhage occurs, the electromagnetic parameters of the lesion site will change, which is significantly different from the surrounding normal brain tissue. The changes in these electromagnetic parameters can be used to detect and image cerebral hemorrhage using microwave imaging technology.

[0097] When the electromagnetic waves emitted by the external antenna reach the surface of the human head, transmission and reflection phenomena will occur at the interface between the air and the surface of the head through which the electromagnetic waves pass. This can be regarded as the superposition of TE waves (transverse electric waves) and TM waves (transverse magnetic waves).

[0098] Let xoz be the incident plane, θ1 be the incident angle, and the wave vector of the lth layer be k l , the electrical parameter is ε k and μ l , then the incident wave of the lth layer is:

[0099]

[0100] Taking the edge of the blood clot as the reference plane, i.e. z=0, the electric field and magnetic field in the blood clot position region 2 are:

[0101]

[0102] Among them, at the junction of blood clot location area 2 and area 3 (z = 0), the reflection coefficient of the electromagnetic wave here is R in the above formulas (2-3) and (2-4): 23 The incident angle of the electromagnetic wave from the blood clot location region 2 to region 3 is θ2. Then the electric field and magnetic field in region 3 are:

[0103]

[0104] Similarly, the transmission coefficient here is T in the above formula (2-5) (2-6) 23 , at this time the incident angle of the electromagnetic wave is θ3. According to the principle of phase consistency at the interface of different media, E 1x (x,0)=E 2x (x,0), E 2x (x,0)=E 3x (x,0) and H 2x (x,0)=H 3x (x,0) and k 2x =k 3x have:

[0105] 1+R 23 =T 23 (2-17)

[0106]

[0107]

[0108] According to the above theoretical analysis, once cerebral hemorrhage occurs, the electrical characteristics of the normal human brain will change, and the antenna terminal will be able to receive the scattered wave signal with changed amplitude and phase, and transmit it to the detection system.

[0109] In an embodiment of the present disclosure, a method for determining a first set size corresponding to each radiation patch or sub-radiation patch in the plurality of groups of first radiation patches includes: obtaining a set resonant frequency f r , the first conductivity μ corresponding to the first dielectric layer 01 , a first thickness h1 and a first relative dielectric constant ε r1 Based on the setting resonant frequency f r , the first conductivity μ 01 , the first thickness h1 and the first relative dielectric constant ε r1 , determine the first width corresponding to the first set size of each radiation patch or sub-radiation patch; obtain the first equivalent dielectric constant ε of the feeding mechanism connected to each radiation patch or sub-radiation patch and arranged on the first dielectric layer rε1 According to the first width, the first thickness h1 and the first relative dielectric constant ε r1 Determine the corresponding first stretching length ΔL1; according to the first equivalent dielectric constant ε rε1 And the first stretching length ΔL1 determines the first length corresponding to the first set size of each radiation patch or sub-radiation patch.

[0110] In an embodiment of the present disclosure, a method for determining a second set size corresponding to each radiation patch or sub-radiation patch in the plurality of groups of second radiation patches includes: obtaining a set resonant frequency f r , the second conductivity μ corresponding to the second dielectric layer 02 , the second thickness h2 and the second relative dielectric constant ε r2 Based on the setting resonant frequency f r The second conductivity μ 02 , the second thickness h2 and the second relative dielectric constant ε r2 , determine the second width corresponding to the second set size of each radiation patch or sub-radiation patch; obtain the second equivalent dielectric constant ε of the feeding mechanism connected to each radiation patch or sub-radiation patch and arranged on the second dielectric layer rε2 According to the second width, the second thickness h2 and the second relative dielectric constant ε r2 Determine the corresponding second stretching length ΔL2; according to the second relative dielectric constant ε r2 And the second stretching length ΔL2 determines the second length corresponding to the second set size of each radiation patch or sub-radiation patch.

[0111] In the embodiment of the present disclosure, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b have the same shape; wherein, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b with the same shape have a rectangular shape. wherein, the first set curved surface curvature is the same as the second set curved surface curvature; the first variable curved surface curvature is the same as the second variable curved surface curvature; the first set size is the same as the second set size; at the operating frequency, the set decibel on the main lobe of the directional pattern corresponding to the microwave antenna is configured as 3 decibels; at the operating frequency, the beam width corresponding to the set decibel on the main lobe of the directional pattern corresponding to the microwave antenna reaches a set angle of 120 degrees. Therefore, the method for determining the first set size corresponding to each radiating patch or sub-radiating patch in the multiple groups of first radiating patches is the same as the method for determining the second set size corresponding to each radiating patch or sub-radiating patch in the multiple groups of second radiating patches. Based on the above, this paper designs a symmetrical dual-channel conformal array antenna (microwave antenna) that directly matches the head tissue, uses CST electromagnetic simulation software to optimize the design of the dielectric matching antenna unit, and finally determines the size of the antenna and tests the performance.

[0112] Based on the previous theoretical analysis, the design steps of the antenna unit can be summarized.

[0113] (1) Determine the antenna's set resonant frequency f r , select a suitable dielectric substrate (the dielectric layer or the first curved dielectric layer 1a or the second curved dielectric layer 1b corresponds to the first dielectric layer and the second dielectric layer, and the corresponding set size is L1×W1×h respectively), μ0 represents the conductivity of the dielectric base, the thickness h of the dielectric substrate and the relative dielectric constant ε r :

[0114] (2) In order to generate efficient radiation, the width W2 of the rectangular patch of the microstrip antenna (each radiation patch or sub-radiation patch of the multiple groups of first radiation patches and the multiple groups of second radiation patches) is calculated by formula (3-1):

[0115]

[0116] (3) The equivalent dielectric constant ε of the microstrip transmission line (feeding mechanism or feeding line corresponding to the feeding mechanism) is calculated from equation (3-2): rε :

[0117]

[0118] (4) Substitute the sub-radiation patch width calculated by equation (3-1) into equation (3-3) to calculate the stretching length ΔL:

[0119]

[0120] (5) Substitute the ΔL and ε calculated in steps (3) and (4) into re , Substitute into formula (3-4) to find the length of the sub-radiation patch L2:

[0121]

[0122] (6) Optimize the parameters of the microwave antenna to obtain dimensions that meet the requirements.

[0123] In an embodiment of the present disclosure, the first length, first width and first thickness of the first curved dielectric layer 1a are determined based on the first sub-length, first sub-width and first thickness corresponding to the first dielectric layer and the first size corresponding to each radiation patch or sub-radiation patch on the first dielectric layer and the number of radiation patches or sub-radiation patches.

[0124] In an embodiment of the present disclosure, the second length, second width and second thickness of the second curved dielectric layer 1b are determined based on the second sub-length, second sub-width and second thickness corresponding to the second dielectric layer and the second size corresponding to each radiation patch or sub-radiation patch on the second dielectric layer and the number of radiation patches or sub-radiation patches.

[0125] In the embodiment of the present disclosure and other possible embodiments, the first length, first width and first thickness of the first curved dielectric layer 1a are determined based on L1×W1×H1 (first sub-length, first sub-width and first thickness) corresponding to the first dielectric layer and L2×W2 corresponding to each radiation patch or sub-radiation patch on the first dielectric layer and the number of radiation patches or sub-radiation patches. For example, the number of radiation patches or sub-radiation patches is 8, and every 2 radiation patches or sub-radiation patches constitute a group of first radiation patches, with a total of 4 groups of first radiation patches. Then, the first length, first width and first thickness of the first curved dielectric layer 1a are respectively configured as 8L1×8W1×H1. Among them, the 8 radiation patches or sub-radiation patches are evenly distributed on one side of the first curved dielectric layer 1a.

[0126] In the embodiment of the present disclosure and other possible embodiments, the second length, second width and second thickness of the second curved dielectric layer 1b are determined based on L2×W2×H2 (second sub-length, second sub-width and second thickness) corresponding to the second dielectric layer and L2×W2 corresponding to each radiation patch or sub-radiation patch on the second dielectric layer and the number of radiation patches or sub-radiation patches. For example, the number of radiation patches or sub-radiation patches is 8, and every 2 radiation patches or sub-radiation patches constitute a group of second radiation patches, with a total of 4 groups of second radiation patches. Then, the second length, second width and second thickness of the second curved dielectric layer 1b are respectively configured as 8L1×8W1×H1. Among them, the 8 radiation patches or sub-radiation patches are evenly distributed on one side of the second curved dielectric layer 1b.

[0127] In an embodiment of the present disclosure, it also includes: a first grounding layer and a second grounding layer are respectively arranged on opposite sides of multiple groups of first radiation patches and multiple groups of second radiation patches on the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b; wherein the first grounding layer covers one side of the first curved surface dielectric layer 1a; and / or the second grounding layer covers one side of the second curved surface dielectric layer 1b.

[0128] In an embodiment of the present disclosure, the material of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b is configured as one or more of polytetrafluoroethylene, Taconite, ceramics, polyimide, and polymer compounds formed by polymerization of tetrafluoroethylene; or, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b are configured as one or more of polytetrafluoroethylene plate, tetrafluoro plate, Teflon plate, and Teflon plate.

[0129] The present disclosure also proposes a microwave antenna design device, including: a first acquisition unit, used to acquire a first curved surface dielectric layer 1a with a first set curved surface curvature and a second curved surface dielectric layer 1b with a second set curved surface curvature; a first setting unit, used to respectively set multiple groups of first radiation patches of a first set size and multiple groups of second radiation patches of a second set size on the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b; a first determination unit, used to determine the corresponding set distance between the opposite ends of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b under the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna's radiation pattern at the set operating frequency reaches a set angle.

[0130] The present disclosure also proposes a microwave antenna design device, including: a second acquisition unit, used to obtain a first curved surface dielectric layer 1a with a first variable curved surface curvature and a second curved surface dielectric layer 1b with a second variable curved surface curvature; a second setting unit, used to respectively set multiple groups of first radiation patches of a first set size and multiple groups of second radiation patches of a second set size on the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b; a configuration unit, used to configure the corresponding distance between the opposite ends of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b as a set distance; a second determination unit, under the set distance and the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna's radiation pattern at the set operating frequency reaches a set angle, determines the first variable curved surface curvature and the second variable curved surface curvature.

[0131] The present disclosure also proposes a microwave antenna design device, comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to call the instructions stored in the memory to execute the above-mentioned microwave antenna design method.

[0132] The present disclosure also proposes a microwave antenna design device, including: a computer-readable storage medium on which computer program instructions are stored, and the computer program instructions implement the above-mentioned microwave antenna design method when executed by a processor.

[0133] The present disclosure also proposes a microwave antenna design device, including: a computer program product, on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, the above-mentioned microwave antenna design method is implemented.

[0134] The present disclosure also proposes a microwave antenna, which is designed by using the microwave antenna design method as described above; or, which is designed by using the microwave antenna design device as described above.

[0135] The present disclosure also proposes a microwave antenna, comprising: a first curved surface dielectric layer 1a with a first set curved surface curvature and a second curved surface dielectric layer 1b with a second set curved surface curvature; the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b are respectively provided with a first excitation port 36 and a second excitation port 55; wherein, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b are also respectively provided with a plurality of groups of first radiation patches connected to the first excitation port 36 and a plurality of groups of second radiation patches connected to the second excitation port 55; the set distance between the opposite ends of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b satisfies that the beam width corresponding to the set decibel on the main lobe of the microwave antenna's radiation pattern at the operating frequency reaches a set angle.

[0136] The present disclosure also proposes a method for simulating cerebral hemorrhage detection, including or applying a microwave antenna designed by the microwave antenna design method as described above; or, including or applying a microwave antenna as described above; and, obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; based on the input reflection coefficient signal, determining whether the head bionic model in the brain accommodation space has one or more of a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma location.

[0137] In an embodiment of the present disclosure, the method for determining the head bionic model includes: performing skull, brain parenchyma, cerebrospinal fluid and hematoma segmentation on a brain image to obtain a corresponding brain morphology; and respectively determining electromagnetic parameters corresponding to the skull, the brain parenchyma, the cerebrospinal fluid and the hematoma; performing three-dimensional reconstruction based on the brain morphology and the corresponding electromagnetic parameters to construct a head bionic model.

[0138] In an embodiment of the present disclosure, a method for determining whether a head bionic model in the brain accommodation space has a hematoma corresponding to bleeding based on the input reflection coefficient signal includes: obtaining a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding and a second bionic model to be detected; using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a first input reflection coefficient signal corresponding to the second head bionic model; based on the first input reflection coefficient signal and the first preset input reflection coefficient signal, determining whether the second bionic model to be detected has a hematoma corresponding to bleeding; wherein the microwave signal transmitted to the second head bionic model using the microwave antenna is the same as the operating frequency corresponding to the first preset input reflection coefficient signal.

[0139] In the embodiments of the present disclosure and other possible embodiments, the method for determining the first preset input reflection coefficient signal corresponding to the first bionic head model without bleeding includes: obtaining the first bionic head model corresponding to the first bionic head model without bleeding; using the microwave antenna to transmit a microwave signal to the first bionic head model, and receiving the first preset input reflection coefficient signal corresponding to the first bionic head model.

[0140] In the embodiments of the present disclosure and other possible embodiments, the method for determining whether there is a hematoma corresponding to bleeding in the second bionic model to be detected based on the first input reflection coefficient signal and the first preset input reflection coefficient signal includes: if the numerical value corresponding to the first input reflection coefficient signal is greater than or equal to the numerical value corresponding to the first preset input reflection coefficient signal, then there is a hematoma corresponding to bleeding in the second bionic model to be detected; otherwise, there is no hematoma corresponding to bleeding in the second bionic model to be detected.

[0141] In an embodiment of the present disclosure, a method for determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal includes: obtaining multiple preset input reflection coefficient signal intervals corresponding to a third head bionic model of hematomas of different degrees corresponding to the bleeding and a second bionic model to be detected; if the second bionic model has a hematoma corresponding to the bleeding; then using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a second input reflection coefficient signal corresponding to the second head bionic model; determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the second input reflection coefficient signal and the multiple preset input reflection coefficient signal intervals; wherein the microwave signal emitted to the second head bionic model using the microwave antenna is the same as the operating frequency corresponding to the determination of the multiple preset input reflection coefficient signal intervals.

[0142] In the embodiments of the present disclosure and other possible embodiments, the method for determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of different degrees of hematoma corresponding to the bleeding includes: respectively acquiring multiple third head bionic models of different degrees of hematoma corresponding to the bleeding; respectively transmitting microwave signals to the multiple third head bionic models using the microwave antenna, and receiving input reflection coefficient signals corresponding to the multiple third head bionic models; dividing the intervals according to the input reflection coefficient signals corresponding to the multiple third head bionic models, and determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of different degrees of hematoma corresponding to the bleeding; and / or,

[0143] In the embodiments of the present disclosure and other possible embodiments, the degree of bleeding is configured as a mild bleeding degree, a moderate bleeding degree, and a severe bleeding degree, and the mild bleeding degree, the moderate bleeding degree, and the severe bleeding degree respectively correspond to the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval of the multiple preset input reflection coefficient signal intervals; based on the fact that the second input reflection coefficient signal corresponding to the second head bionic model falls within the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval, the different degrees of hematoma corresponding to the second head bionic model are determined.

[0144] In an embodiment of the present disclosure, a method for determining a hematoma position corresponding to a head bionic model within the brain accommodation space based on the input reflection coefficient signal comprises: if a hematoma corresponding to bleeding exists in the second bionic model; then determining position information corresponding to a second input reflection coefficient signal corresponding to the second head bionic model; if the position information is in a set left brain area, then the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0145] In an embodiment of the present disclosure, the multiple groups of first radiation patches and / or the multiple groups of second radiation patches are respectively provided with at least one radiation patch or sub-radiation patch; wherein the at least one radiation patch or sub-radiation patch is respectively connected to the first excitation port 36 and / or the second excitation port 55 through a feeding mechanism. wherein at least one radiation patch or sub-radiation patch corresponding to each group of radiation patches in the multiple groups of first radiation patches and / or the multiple groups of second radiation patches is respectively evenly distributed on the first curved surface dielectric layer 1a and / or the second curved surface dielectric layer 1b.

[0146] In the embodiment of the present disclosure and other possible embodiments, each group of radiation patches in the plurality of groups of first radiation patches and / or the plurality of groups of second radiation patches is respectively provided with two sub-radiation patches. Wherein, the two radiation patches corresponding to each group of radiation patches in the plurality of groups of first radiation patches and / or the plurality of groups of second radiation patches are respectively evenly distributed on the first curved surface dielectric layer 1a and / or the second curved surface dielectric layer 1b. Wherein, the first excitation port 36 and the second excitation port 55 are respectively configured as SMA (SubMiniature version A) interfaces.

[0147] In an embodiment of the present disclosure, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b have the same shape; wherein the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b have the same shape and are configured as a rectangle.

[0148] In an embodiment of the present disclosure, each sub-radiation patch in each group of the multiple groups of first radiation patches has the same shape; wherein the shape corresponding to each sub-radiation patch in each group of first radiation patches with the same shape is configured as a rectangle.

[0149] In an embodiment of the present disclosure, each sub-radiation patch in each group of second radiation patches in the multiple groups of second radiation patches has the same shape; wherein the shape corresponding to each sub-radiation patch in each group of second radiation patches with the same shape is configured as a rectangle.

[0150] In an embodiment of the present disclosure, the shapes of each sub-radiation patch of each group of first radiation patches in the multiple groups of first radiation patches and each sub-radiation patch of each group of second radiation patches in the multiple groups of second radiation patches are the same; wherein the shapes of each sub-radiation patch of each group of first radiation patches and each sub-radiation patch of each group of second radiation patches with the same shapes are configured as rectangles.

[0151] In an embodiment of the present disclosure, each group of radiation patches in the multiple groups of first radiation patches and / or the multiple groups of second radiation patches is respectively provided with two sub-radiation patches; wherein, the two sub-radiation patches are respectively provided with inward grooves on one side of the feeding mechanism connected thereto, and the feeding mechanism is connected to the corresponding radiation patch through the grooves.

[0152] For example, in the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the first number of groups corresponding to the plurality of groups of first radiation patches is configured as 4, and each of the 4 groups of first radiation patches includes: two radiation patches. Among them, the 8 radiation patches corresponding to the 4 groups of first radiation patches are evenly distributed on the first curved medium layer 1a.

[0153] Specifically, in the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the first radiation patch corresponding to the first group includes: a first sub-radiation patch 21 and a second sub-radiation patch 22; the first radiation patch corresponding to the second group includes: a third sub-radiation patch 23 and a fourth sub-radiation patch 24; the first radiation patch corresponding to the third group includes: a fifth sub-radiation patch 25 and a sixth sub-radiation patch 26; the first radiation patch corresponding to the fourth group includes: a seventh sub-radiation patch 27 and an eighth sub-radiation patch 28.

[0154] More specifically, in the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27, and the eighth sub-radiation patch 28 have the same shape. Further, the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27, and the eighth sub-radiation patch 28 having the same shape are configured as a rectangle.

[0155] For example, in the embodiments of the present disclosure and other possible embodiments, similarly, Figure 1 As shown, the second number of groups corresponding to the plurality of groups of second radiation patches is configured as 4, and each of the 4 groups of second radiation patches includes: two radiation patches. Among them, the 8 radiation patches corresponding to the 4 groups of second radiation patches are evenly distributed on the second curved medium layer 1b.

[0156] Specifically, in the embodiments of the present disclosure and other possible embodiments, Figure 1As shown, the second radiation patch corresponding to the first group includes: the ninth sub-radiation patch 29 and the tenth sub-radiation patch 40; the second radiation patch corresponding to the second group includes: the eleventh sub-radiation patch 41 and the twelfth sub-radiation patch 42; the second radiation patch corresponding to the third group includes: the thirteenth sub-radiation patch 43 and the fourteenth sub-radiation patch 44; the second radiation patch corresponding to the fourth group includes: the fifteenth sub-radiation patch 45 and the sixteenth sub-radiation patch 46.

[0157] More specifically, in the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the corresponding shapes of the ninth sub-radiation patch 29, the tenth sub-radiation patch 40, the eleventh sub-radiation patch 41, the twelfth sub-radiation patch 42, the thirteenth sub-radiation patch 43, the fourteenth sub-radiation patch 44, the fifteenth sub-radiation patch 45, and the sixteenth sub-radiation patch 46 are the same. Further, the corresponding shapes of the ninth sub-radiation patch 29, the tenth sub-radiation patch 40, the eleventh sub-radiation patch 41, the twelfth sub-radiation patch 42, the thirteenth sub-radiation patch 43, the fourteenth sub-radiation patch 44, the fifteenth sub-radiation patch 45, and the sixteenth sub-radiation patch 46 having the same shape are configured as a rectangle.

[0158] In an embodiment of the present disclosure, each radiation patch or sub-radiation patch of the multiple groups of first radiation patches is respectively configured with a corresponding first feeding mechanism slot on the corresponding first curved medium layer 1a; wherein the feeding mechanism respectively connected to each radiation patch or sub-radiation patch of the multiple groups of first radiation patches and the first excitation port 36 is arranged in the first feeding mechanism slot.

[0159] In the embodiments of the present disclosure and other possible embodiments, the first feeding mechanism slot configuration includes: a plurality of groups of first patch feeding mechanism slots whose number is consistent with the plurality of groups of first radiation patches and a plurality of groups of first summary feeding mechanism slots connected to the plurality of groups of first patch feeding mechanism slots; wherein, one end of each group of first patch feeding mechanism slots in the plurality of groups of first patch feeding mechanism slots is respectively connected to each radiation patch or sub-radiation patch of each corresponding group of first radiation patches, the other end of each group of first patch feeding mechanism slots in the plurality of groups of first patch feeding mechanism slots is connected to one end of the plurality of groups of first summary feeding mechanism slots, and the other end of the plurality of groups of first summary feeding mechanism slots is connected to the first excitation port 36.

[0160] In the embodiments of the present disclosure and other possible embodiments, Figure 1As shown, the multiple groups of first patch feeding mechanism slots include: a first sub-feeding mechanism slot connected to the first sub-radiation patch 21 and the second sub-radiation patch 22 respectively, a second sub-feeding mechanism slot connected to the third sub-radiation patch 23 and the fourth sub-radiation patch 24 respectively, a third sub-feeding mechanism slot connected to the fifth sub-radiation patch 25 and the sixth sub-radiation patch 26 respectively, and a fourth sub-feeding mechanism slot connected to the seventh sub-radiation patch 27 and the eighth sub-radiation patch 28 respectively.

[0161] In the embodiments of the present disclosure and other possible embodiments, the corresponding shapes of each group (individual) of the first patch feeding mechanism slots (i.e., the first sub-feeding mechanism slot, the second sub-feeding mechanism slot, the third sub-feeding mechanism slot and the fourth sub-feeding mechanism slot) in the multiple groups of first patch feeding mechanism slots are respectively configured to be concave; the concave arms of each group (individual) of the first patch feeding mechanism slots are respectively connected to each radiating patch or sub-radiating patch of the corresponding multiple groups of first radiating patches.

[0162] Among them, in the embodiments of the present disclosure and other possible embodiments, the multiple groups of first summary feeding mechanism slots include: a first sub-summary feeding mechanism slot 31, a second sub-summary feeding mechanism slot 32, a third sub-summary feeding mechanism slot 33 and a fourth sub-summary feeding mechanism slot 34 and a first overall feeding mechanism slot 35 respectively connected to the first sub-summary feeding mechanism slot 31, the second sub-summary feeding mechanism slot 32, the third sub-summary feeding mechanism slot 33 and the fourth sub-summary feeding mechanism slot 34; wherein one end of the first overall feeding mechanism slot 35 is respectively connected to the first sub-summary feeding mechanism slot 31, the second sub-summary feeding mechanism slot 32, the third sub-summary feeding mechanism slot 33 and the fourth sub-summary feeding mechanism slot 34, and the other end of the first overall feeding mechanism slot 35 is connected to the first excitation port 36.

[0163] In the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the shapes of the first sub-feeding mechanism slot 31, the second sub-feeding mechanism slot 32, the third sub-feeding mechanism slot 33 and the fourth sub-feeding mechanism slot 34 are respectively configured to be concave; wherein, the concave arms corresponding to each of the first sub-feeding mechanism slots 31, each of the second sub-feeding mechanism slots 32, each of the third sub-feeding mechanism slots 33 and each of the fourth sub-feeding mechanism slots 34 are respectively connected to the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27 and the eighth sub-radiation patch 28.

[0164] Among them, in the embodiments of the present disclosure and other possible embodiments, the multiple groups of first summary feeding mechanism slots include: a first sub-summary feeding mechanism slot 31, a second sub-summary feeding mechanism slot 32, a third sub-summary feeding mechanism slot 33 and a fourth sub-summary feeding mechanism slot 34 and a first overall feeding mechanism slot 35 respectively connected to the first sub-summary feeding mechanism slot 31, the second sub-summary feeding mechanism slot 32, the third sub-summary feeding mechanism slot 33 and the fourth sub-summary feeding mechanism slot 34; wherein one end of the first overall feeding mechanism slot 35 is respectively connected to the first sub-summary feeding mechanism slot 31, the second sub-summary feeding mechanism slot 32, the third sub-summary feeding mechanism slot 33 and the fourth sub-summary feeding mechanism slot 34, and the other end of the first overall feeding mechanism slot 35 is connected to the first excitation port 36.

[0165] In the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the shapes of the adjacent first sub-aggregate feeding mechanism slots 31, the second sub-aggregate feeding mechanism slots 32, the third sub-aggregate feeding mechanism slots 33 and the fourth sub-aggregate feeding mechanism slots 34 are respectively configured to be concave; wherein, the concave arms corresponding to each of the first sub-aggregate feeding mechanism slots 31, each of the second sub-aggregate feeding mechanism slots 32, each of the third sub-aggregate feeding mechanism slots 33 and each of the fourth sub-aggregate feeding mechanism slots 34 are respectively connected to the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27 and the eighth sub-radiation patch 28 through the corresponding first patch feeding mechanism slots (i.e., the first sub-feeding mechanism slot, the second sub-feeding mechanism slot, the third sub-feeding mechanism slot and the fourth sub-feeding mechanism slot).

[0166] Figure 2 Schematic diagram of the first feeding mechanism slot provided in the first curved dielectric layer in the microwave antenna of the embodiment of the present invention. Figure 2 As shown, the first feeding mechanism slot provided in the first curved dielectric layer in the microwave antenna is configured to be concave. For example, one end of the first concave arm 212 and the second concave arm 222 of the first sub-feeding mechanism slot in the first feeding mechanism slot are respectively connected to the first sub-radiation patch 21 and the second sub-radiation patch 22, and the other end of the first sub-feeding mechanism slot in the first feeding mechanism slot is connected to the first sub-aggregate feeding mechanism slot 31; one end of the third concave arm 232 and the fourth concave arm 242 of the second sub-feeding mechanism slot in the first feeding mechanism slot are respectively connected to the third sub-radiation patch 23 and the fourth sub-radiation patch 24, and the other end of the second sub-feeding mechanism slot in the first feeding mechanism slot is connected to the second sub-aggregate feeding mechanism slot 32.

[0167] In an embodiment of the present disclosure, each radiation patch or each sub-radiation patch in the multiple groups of first radiation patches and / or the multiple groups of second radiation patches is provided with an inward groove on one side of the feeding mechanism connected thereto, and the feeding mechanism is connected to each corresponding radiation patch through the groove.

[0168] like Figure 2 As shown, the first sub-radiation patch 21 and the second sub-radiation patch 22 are respectively provided with a first groove 211 and a second groove 221, and one end of the first concave arm 212 and the second concave arm 222 of the first sub-feeding mechanism groove in the first feeding mechanism groove are respectively connected to the first groove 211 provided in the first sub-radiation patch 21 and the second groove 221 provided in the second sub-radiation patch 22. For another example, the third sub-radiation patch 23 and the fourth sub-radiation patch 24 are respectively provided with a third groove 231 and a fourth groove 241, and one end of the third concave arm 232 and the fourth concave arm 24 of the second sub-feeding mechanism groove in the first feeding mechanism groove are respectively connected to the third groove 231 provided in the third sub-radiation patch 23 and the fourth groove 241 provided in the fourth sub-radiation patch 24. Similarly, each radiation patch or each sub-radiation patch in the multiple groups of second radiation patches is provided with an inward groove on one side of the feeding mechanism connected thereto, and the feeding mechanism can be connected to each corresponding radiation patch through the groove in the same manner as the connection of the multiple groups of first radiation patches, which will not be described in detail here.

[0169] In an embodiment of the present disclosure, each radiation patch or sub-radiation patch of the multiple groups of second radiation patches is respectively configured with a corresponding second feeding mechanism slot on the corresponding second curved medium layer 1b; wherein the feeding mechanisms respectively connected to the multiple groups of second radiation patches and the second excitation port 55 are arranged in the second feeding mechanism slot.

[0170] In the embodiments of the present disclosure and other possible embodiments, the second feeding mechanism slot configuration includes: a plurality of groups of second patch feeding mechanism slots whose number is consistent with the plurality of groups of second radiation patches and a plurality of groups of second summary feeding mechanism slots connected to the plurality of groups of second patch feeding mechanism slots; wherein, one end of each group of second patch feeding mechanism slots in the plurality of groups of second patch feeding mechanism slots is respectively connected to each radiation patch or sub-radiation patch of each corresponding group of second radiation patches, the other end of each group of second patch feeding mechanism slots in the plurality of groups of second patch feeding mechanism slots is connected to one end of the plurality of groups of second summary feeding mechanism slots, and the other end of the plurality of groups of second summary feeding mechanism slots is connected to the second excitation port 55.

[0171] In the embodiments of the present disclosure and other possible embodiments, Figure 1 As shown, the multiple groups of second patch feeding mechanism slots include: a fifth sub-feeding mechanism slot connected to the ninth sub-radiation patch 29 and the tenth sub-radiation patch 40 respectively, a sixth sub-feeding mechanism slot connected to the eleventh sub-radiation patch 41 and the twelfth sub-radiation patch 42 respectively, a seventh sub-feeding mechanism slot connected to the thirteenth sub-radiation patch 43 and the fourteenth sub-radiation patch 44 respectively, and an eighth sub-feeding mechanism slot connected to the fifteenth sub-radiation patch 45 and the sixteenth sub-radiation patch 46 respectively.

[0172] In the embodiments of the present disclosure and other possible embodiments, the corresponding shapes of each group (individual) of the second patch feeding mechanism slots (i.e., the fifth sub-feeding mechanism slot, the sixth sub-feeding mechanism slot, the seventh sub-feeding mechanism slot and the eighth sub-feeding mechanism slot) in the multiple groups of second patch feeding mechanism slots are respectively configured as concave; the concave arms of each group of second patch feeding mechanism slots are respectively connected to each radiating patch or sub-radiating patch of the corresponding multiple groups of second radiating patches.

[0173] Among them, in the embodiments of the present disclosure and other possible embodiments, the multiple groups of second summary feeding mechanism slots include: a fifth sub-summary feeding mechanism slot 51, a sixth sub-summary feeding mechanism slot 52, a seventh sub-summary feeding mechanism slot 53 and an eighth sub-summary feeding mechanism slot 54 and a second overall feeding mechanism slot 54-1 respectively connected to the fifth sub-summary feeding mechanism slot 51, the sixth sub-summary feeding mechanism slot 52, the seventh sub-summary feeding mechanism slot 53 and the eighth sub-summary feeding mechanism slot 54; wherein one end of the second overall feeding mechanism slot 54-1 is respectively connected to the fifth sub-summary feeding mechanism slot 51, the sixth sub-summary feeding mechanism slot 52, the seventh sub-summary feeding mechanism slot 53 and the eighth sub-summary feeding mechanism slot 54, and the other end of the second overall feeding mechanism slot 54-1 is connected to the second excitation port 55.

[0174] In the embodiments of the present disclosure and other possible embodiments, Figure 1As shown, the shapes of the adjacent fifth sub-aggregate feeding mechanism slot 51, the sixth sub-aggregate feeding mechanism slot 52, the seventh sub-aggregate feeding mechanism slot 53 and the eighth sub-aggregate feeding mechanism slot 54 are respectively configured as concave; wherein, the concave arms corresponding to each of the first sub-feeding mechanism slots 31, each of the second sub-feeding mechanism slots 32, each of the third sub-feeding mechanism slots 33 and each of the fourth sub-feeding mechanism slots 34 are respectively connected to the ninth sub-radiation patch 29, the tenth sub-radiation patch 40, the eleventh sub-radiation patch 41, the twelfth sub-radiation patch 42, the thirteenth sub-radiation patch 43, the fourteenth sub-radiation patch 44, the fifteenth sub-radiation patch 45 and the sixteenth sub-radiation patch 46 through the second patch feeding mechanism slots (i.e., the fifth sub-feeding mechanism slot, the sixth sub-feeding mechanism slot, the seventh sub-feeding mechanism slot and the eighth sub-feeding mechanism slot).

[0175] Similar to Figure 2 , the second feeding mechanism slot provided in the second curved dielectric layer of the microwave antenna is configured as a concave shape. For example, one end of the fifth concave arm and the sixth concave arm of the fifth sub-feeding mechanism slot in the second feeding mechanism slot are respectively connected to the ninth sub-radiation patch 29 and the tenth sub-radiation patch 40, and the other end of the fifth sub-feeding mechanism slot in the second feeding mechanism slot is connected to the eighth sub-aggregate feeding mechanism slot 54; one end of the seventh concave arm and the eighth concave arm of the sixth sub-feeding mechanism slot in the first feeding mechanism slot are respectively connected to the eleventh sub-radiation patch 41 and the twelfth sub-radiation patch 42, and the other end of the sixth sub-feeding mechanism slot in the second feeding mechanism slot is connected to the seventh sub-aggregate feeding mechanism slot 53.

[0176] In an embodiment of the present disclosure, the first feeding mechanism corresponding to the multiple groups of first radiation patches and / or the second feeding mechanism corresponding to the multiple groups of second radiation patches include: a feeding line and a first feeding point and a second feeding point at both ends of the feeding line; wherein the first feeding point is connected to the multiple groups of first radiation patches or the multiple groups of second radiation patches; and the second feeding point is connected to the first excitation port 36 and / or the second excitation port 55.

[0177] In the embodiments of the present disclosure and other possible embodiments, the feeding line corresponding to the first feeding mechanism is laid in the first feeding mechanism groove, and the first feeding point corresponding to the first feeding mechanism is arranged at the connection between each radiation patch or sub-radiation patch of each group of first radiation patches in the multiple groups of first radiation patches / each radiation patch or sub-radiation patch and the inner groove.

[0178] Similarly, in the embodiments of the present disclosure and other possible embodiments, the feeding line corresponding to the second feeding mechanism is laid in the second feeding mechanism groove, and the first feeding point corresponding to the second feeding mechanism is arranged at the connection between each radiation patch or sub-radiation patch of each group of first radiation patches in the multiple groups of second radiation patches / each radiation patch or sub-radiation patch and the inner groove.

[0179] In an embodiment of the present disclosure, the microwave antenna also includes: a first grounding layer; the first grounding layer is arranged on one side of the first curved surface dielectric layer 1a; the multiple groups of first radiation patches are arranged on the other side of the first curved surface dielectric layer 1a; wherein the first grounding layer arranged on one side of the first curved surface dielectric layer 1a covers one side of the first curved surface dielectric layer 1a; wherein the material of the first grounding layer arranged on one side of the first curved surface dielectric layer 1a is configured as a metal material; wherein the metal material corresponding to the first grounding layer arranged on one side of the first curved surface dielectric layer 1a is configured as copper.

[0180] In an embodiment of the present disclosure, the microwave antenna also includes: a second grounding layer; the second grounding layer is arranged on one side of the second curved surface dielectric layer 1b; the multiple groups of second radiation patches are arranged on the other side of the second curved surface dielectric layer 1b; wherein the second grounding layer arranged on one side of the second curved surface dielectric layer 1b completely covers one side of the second curved surface dielectric layer 1b; wherein the material of the second grounding layer arranged on one side of the second curved surface dielectric layer 1b is configured as a metal material; wherein the metal material corresponding to the second grounding layer arranged on one side of the second curved surface dielectric layer 1b is configured as copper.

[0181] In the embodiment of the present disclosure and other possible embodiments, the first grounding layer and the second grounding layer are made of a material with good electrical conductivity, such as brass, which is tightly attached to the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b (dielectric layer, including: the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b); the corresponding areas of the first grounding layer and the second grounding layer respectively cover the entire lower surface of the dielectric substrate (dielectric layer, including: the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b).

[0182] In an embodiment of the present disclosure, the material corresponding to each first radiation patch in the multiple groups of first radiation patches and each second radiation patch in the multiple groups of second radiation patches is configured as metal material; and / or, the metal material corresponding to each first radiation patch in the multiple groups of first radiation patches and each second radiation patch in the multiple groups of second radiation patches is configured as copper.

[0183] In the embodiments of the present disclosure and other possible embodiments, the shapes of the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27, the eighth sub-radiation patch 28 corresponding to the multiple groups of first radiation patches and the ninth sub-radiation patch 29, the tenth sub-radiation patch 40, the eleventh sub-radiation patch 41, the twelfth sub-radiation patch 42, the thirteenth sub-radiation patch 43, the fourteenth sub-radiation patch 44, the fifteenth sub-radiation patch 45, and the sixteenth sub-radiation patch 46 corresponding to the multiple groups of second radiation patches are rectangular, and the area corresponding to each rectangle is 2732.05 mm 2 , made of brass which has high conductivity.

[0184] In the embodiments of the present disclosure and other possible embodiments, the arrangement of the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27, the eighth sub-radiation patch 28 corresponding to multiple groups of first radiation patches and the ninth sub-radiation patch 29, the tenth sub-radiation patch 40, the eleventh sub-radiation patch 41, the twelfth sub-radiation patch 42, the thirteenth sub-radiation patch 43, the fourteenth sub-radiation patch 44, the fifteenth sub-radiation patch 45, and the sixteenth sub-radiation patch 46 corresponding to multiple groups of second radiation patches are configured as a uniform rectangular array, and the spacing in the column direction is configured to be 51.19 mm.

[0185] In the embodiments of the present disclosure and other possible embodiments, combined with the electromagnetic characteristics of brain hemorrhage tissue and normal brain tissue in different microwave frequency bands, this study sets the initial working frequency band to a relatively wide microwave frequency band range of 1-3GHz. The reason for choosing 1-3GHz is that microwaves in this frequency band have a certain degree of penetration into biological tissues. For example, in medical imaging applications, microwaves in this frequency range can achieve imaging detection of internal human tissues; second, the related equipment and technologies for microwave generation, transmission, reception and detection in this frequency band are mature and easy to implement, and related technologies and equipment such as common Wi-Fi have been widely used and developed; third, in this frequency band, the electromagnetic characteristics of brain hemorrhage tissue and normal brain tissue differ significantly, which helps to improve the accuracy and sensitivity of detection; fourth, the thermal effect and other potential biological effects of microwave energy on human tissues in this frequency band are relatively small, and the safety of experimental research is guaranteed under reasonable power control.

[0186] In an embodiment of the present disclosure, the material of the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b is configured as one of polytetrafluoroethylene, Taconite, ceramics, polyimide, and tetrafluoroethylene through polymerization; and / or, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b are configured as one of polytetrafluoroethylene plate, tetrafluoro plate, Teflon plate, and Teflon plate.

[0187] In the embodiments of the present disclosure and other possible embodiments, the material selection of the first curved dielectric layer 1a and the second curved dielectric layer 1b (antenna substrate or dielectric layer 1) mainly considers factors including low dielectric loss, low dielectric constant, and adaptability to high-frequency applications. Suitable substrate materials include: PTFE (polytetrafluoroethylene), Taconic, ceramic filling, polyimide (PI), F4B (one of the existing polymer compounds obtained by polymerization of tetrafluoroethylene) sheets.

[0188] Taking into account the performance, plasticity and cost performance of the material, F4B (a kind of existing polymer compound formed by polymerization of tetrafluoroethylene, a special polytetrafluoroethylene) is selected as the main material here. The characteristics of this material include low dielectric constant, low dielectric loss, low moisture absorption rate, isotropy, etc. It is easy to be cut into various shapes, can resist the corrosion of solutions and reagents used in etching and through-hole plating, and is often used in the production of high-frequency PCB boards such as power dividers, couplers, combiners, power amplifiers, dry amplifiers, base stations, 4G antennas, etc.

[0189] In an embodiment of the present disclosure, a set distance between the opposite ends of the first curved surface dielectric layer 1a with a first set curved surface curvature and the second curved surface dielectric layer 1b with a second set curved surface curvature satisfies that a beam width corresponding to a set decibel on a main lobe of the radiation pattern at an operating frequency reaches a set angle; wherein, at the operating frequency, the set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna is configured to be 3 decibels; wherein, at the operating frequency, a beam width corresponding to a set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna reaches a set angle of 120 degrees; wherein, the set distance between the opposite ends of the first curved surface dielectric layer 1a with a first set curved surface curvature and the second curved surface dielectric layer 1b with a second set curved surface curvature is configured to be 177.50 millimeters.

[0190] In the embodiments of the present disclosure and other possible embodiments, the working principle of the microwave antenna is described as follows. Electromagnetic waves with a wavelength between 1m and 1mm and a frequency between 300MHz and 300GHz are called microwaves. They have the characteristics of short wavelength and high frequency. Considering the penetration of microwaves into the brain, microwaves are usually below 3GHz when used for brain detection. When microwaves pass through the interface of two different media, transmission, absorption and reflection phenomena will occur. Generally, the wave passing through the first medium interface, the wave reflected from the first medium interface and the wave entering the second medium are defined as the incident wave, the reflected wave and the transmitted wave, respectively. The transmission characteristics of microwaves in the medium can be characterized by the relevant parameters of the incident wave, the reflected wave and the transmitted wave. These transmission characteristics are directly related to the properties of the medium, which constitutes the theoretical basis for microwave detection of the dielectric properties of the medium. At the same time, in the embodiments of the present disclosure and other possible embodiments, the basic theory of electromagnetic fields is described as follows.

[0191] Conductivity, usually represented by σ, is used to describe the ease with which charge flows in a substance. Dielectric constant, usually represented by ε, is larger, indicating a stronger ability to bind charge. Electric field strength under macroscopic medium The relationship between conductivity σ and dielectric constant ε can be expressed by Maxwell equations:

[0192]

[0193] in, Represents the vector differential operator, used to represent the electric field strength The curl of .

[0194] in, Indicates the electric field strength, unit (V / m); Indicates the magnetic field strength, unit (A / m); Indicates magnetic flux intensity, unit (T); Indicates electric displacement, unit (C / m 2 ); Indicates the current intensity, unit (A / m 2 );ρ represents the charge density, unit (C / m 3 ), r is the position vector, ω is the angular frequency, and ω=2πf(rad / s).

[0195] Magnetic flux strength and electric displacement Determined by the electromagnetic properties of the medium, when the medium is a homogeneous medium, the relationship between the vector field and the medium can be expressed as:

[0196]

[0197] Where ε0 = 8.854 × 10-12 F / m is the dielectric constant in vacuum; ε r Represents the relative dielectric constant of the medium; μ0=4π×10 -7 H / m, is the magnetic permeability in vacuum; μ r It represents the relative magnetic permeability of the medium; σ represents the electrical conductivity of the medium, unit (S / m).

[0198] Insulators that can be polarized are called dielectrics. There are bound charges in ideal dielectrics. When an external electric field is applied, these bound charges move in a microscopic local range, generating polarization, so that the dielectric shows electrical properties on a macroscopic scale. These polarized charges will generate new electric fields that affect the original external electric field.

[0199] In electromagnetism, the dielectric properties of an object are usually described by conductivity and dielectric constant. The dielectric constant represents the ability of the dielectric to bind charges, while the conductivity is used to describe the magnitude of the electric field that a unit charge can generate during polarization. When the dielectric constant is expressed in complex form, we can get:

[0200]

[0201] Where ε0 represents the dielectric constant in vacuum; ε r Represents the relative dielectric constant; ε r ″ represents dielectric loss; σ represents conductivity; ω represents angular frequency, j represents current density, and in electromagnetic testing, ε r ″ is often ignored.

[0202] Figure 3 is the RC equivalent circuit of the biological tissue in the embodiment of the present invention. Figure 3 As shown in the figure, Re represents the resistance of the extracellular fluid, Ri represents the resistance of the intracellular fluid, Rm and Cm represent the resistance and capacitance of the cell membrane respectively. There are conductive ions in the intercellular matrix of biological tissues. At the same time, the cell membrane is a semi-permeable membrane that can selectively allow some ions to pass through. Therefore, the structure and physiological and pathological state of biological tissues can be directly or indirectly reflected by the dielectric properties of biological tissues. Since the phospholipid bilayer of the cell membrane has capacitive properties, the electrical properties of biological tissues will change with the change of the frequency of the external excitation signal, which can be used Figure 3 The cell RC equivalent circuit is shown as a rough representation.

[0203] On this basis, the Cole brothers proposed the Cole-Cole theory to more accurately represent the impedance characteristics of biological tissues. It uses a frequency-dependent constant phase element (CPE) to replace Figure 1 The equivalent membrane capacitance in the image is the complex impedance of the constant angle unit as follows:

[0204]

[0205] Where Z CPE represents the complex impedance of the constant angle unit, j represents the current density, c represents the capacitance of the capacitor, and f is the frequency; 0≤α≤1, and its value depends on the capacitive component, resistive component, and roughness of the cell membrane. When α=1, CPE is regarded as an ideal capacitor.

[0206] Figure 4 : is a biological tissue complex impedance trajectory diagram according to an embodiment of the present invention. Figure 4 As shown, Z represents impedance, the horizontal axis (R) represents equivalent resistance, and the vertical axis (-X) represents equivalent capacitance; R0 is the intersection of the low-frequency end and the real axis, that is, the impedance value of DC; R ∞ is the intersection of the high frequency end and the real axis, that is, the impedance value when the frequency is infinite; f c is the characteristic frequency (CF) of the tissue. As can be seen from the figure, when the frequency of the external excitation signal is equal to CF, the absolute value of the equivalent capacitance (-X) is the maximum. The impedance characteristics of biological tissue can be described by the following formula:

[0207]

[0208] Wherein, α is the dispersion coefficient. When α=1, the center of the impedance arc trajectory falls exactly on the R axis.

[0209] In the embodiments of the present disclosure and other possible embodiments, the human head is symmetrical, consisting of left and right hemispheres, and has complex shapes and curves. The radiation range of traditional planar antennas is difficult to completely cover the entire head. Furthermore, the present disclosure proposes a microwave antenna with a conformal array, the shape of the microwave antenna is consistent with the head, and the antenna array surface of the microwave antenna (multiple groups of first radiation patches and multiple groups of second radiation patches respectively arranged on the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b) is "conformal" to the shape of the head, which enhances the adaptability of the microwave antenna and reduces the attenuation and distortion of the signal in the transmission path due to factors such as path changes, reflections and scattering. For the microwave antenna with a conformal array, since the antenna is placed on the surface of the head, the microwave antenna with a conformal array must have the characteristics of a low profile, that is, the height or thickness of the antenna should be as small as possible to avoid causing more electromagnetic radiation to the human body, while ensuring the comfort and safety of wearing. The microwave antenna with a conformal array also needs to have the characteristic of easy conformality, that is, the components of the antenna array should be able to flexibly adjust the shape and layout to match the complex curves of the surface of the head.

[0210] This paper designs a symmetrical dual-channel conformal array antenna (microwave antenna) that directly matches the head tissue. CST electromagnetic simulation software is used to optimize the design of the dielectric matching antenna unit, ultimately determine the size of the antenna, and test the performance.

[0211] Based on the previous theoretical analysis, the design steps of the antenna unit can be summarized.

[0212] (1) Determine the antenna's set resonant frequency f r , select a suitable dielectric substrate (the dielectric layer or the first curved dielectric layer 1a or the second curved dielectric layer 1b corresponds to the first dielectric layer and the second dielectric layer, and the corresponding set size is L1×W1×h respectively), μ0 represents the conductivity of the dielectric base, the thickness h of the dielectric substrate and the relative dielectric constant ε r :

[0213] (2) In order to generate efficient radiation, the width W2 of the rectangular patch of the microstrip antenna (each radiation patch or sub-radiation patch of the multiple groups of first radiation patches and the multiple groups of second radiation patches) is calculated by formula (3-1):

[0214]

[0215] (3) The equivalent dielectric constant ε of the microstrip transmission line (feeding mechanism or feeding line corresponding to the feeding mechanism) is calculated from equation (3-2): rε :

[0216]

[0217] (4) Substitute the sub-radiation patch width calculated by equation (3-1) into equation (3-3) to calculate the stretching length ΔL:

[0218]

[0219] (5) Substitute the ΔL and ε calculated in steps (3) and (4) into re , Substitute into formula (3-4) to find the length of the sub-radiation patch L2:

[0220]

[0221] (6) Optimize the parameters of the microwave antenna to obtain dimensions that meet the requirements.

[0222] Based on L1×W1×H1 (first sub-length, first sub-width and first thickness) corresponding to the first dielectric layer, L2×W2 corresponding to each radiation patch or sub-radiation patch on the first dielectric layer, and the number of radiation patches or sub-radiation patches, the first length, first width and first thickness of the first curved dielectric layer 1a are determined. For example, the number of radiation patches or sub-radiation patches is 8, and every 2 radiation patches or sub-radiation patches constitute a group of first radiation patches, with a total of 4 groups of first radiation patches. Then, the first length, first width and first thickness of the first curved dielectric layer 1a are respectively configured as 8L1×8W1×H1. Among them, the 8 radiation patches or sub-radiation patches are evenly distributed on one side of the first curved dielectric layer 1a.

[0223] Based on L2×W2×H2 (second sub-length, second sub-width and second thickness) corresponding to the second dielectric layer, L2×W2 corresponding to each radiation patch or sub-radiation patch on the second dielectric layer, and the number of radiation patches or sub-radiation patches, the second length, second width and second thickness of the second curved dielectric layer 1b are determined. For example, the number of radiation patches or sub-radiation patches is 8, and every 2 radiation patches or sub-radiation patches constitute a group of second radiation patches, with a total of 4 groups of second radiation patches. Then, the second length, second width and second thickness of the second curved dielectric layer 1b are respectively configured as 8L1×8W1×H1. Among them, the 8 radiation patches or sub-radiation patches are evenly distributed on one side of the second curved dielectric layer 1b.

[0224] In the feeding method of microstrip antenna, coaxial feeding or microstrip line feeding is generally used. The structure of coaxial line feeding is relatively complex, which is not convenient for close integration with other electronic components or systems, increasing the complexity and cost of the overall design. Especially in this subject itself, in order to obtain a very high gain and improve the directivity of the antenna, the number of array elements is very large, and the mutual coupling between the array elements becomes more complicated. In applications such as antenna arrays, the processing workload is large, which increases the production cycle and cost. Therefore, the microstrip line feeding method is used here to maintain low transmission loss and noise interference, ensuring high-quality signal transmission.

[0225] Figure 5 Schematic diagram of the structure of the microwave antenna according to the embodiment of the present invention. Figure 5As shown, the microstrip patch antenna (microwave antenna) is composed of a ground layer (a first ground layer and a second ground layer), a dielectric layer (a first curved dielectric layer 1a and a second curved dielectric layer 1b) and a patch layer (a plurality of groups of first radiation patches and a plurality of groups of second radiation patches are respectively arranged on the first curved dielectric layer 1a and the second curved dielectric layer 1b). Among them, the material of the first grounding layer and the second grounding layer is brass, with a size of L1×W1×H, the dielectric layer (the first curved dielectric layer 1a and the second curved dielectric layer 1b) is made of flexible F4B material, with a relative dielectric constant of 2.2 and a thickness of h, and rectangular radiation patches (each radiation patch or sub-radiation patch of multiple groups of first radiation patches and multiple groups of second radiation patches) and microstrip strips (the first feeding mechanism and / or the second feeding mechanism; wherein the first feeding mechanism and / or the second feeding mechanism respectively include: a feeding line and a first feeding point and a second feeding point at both ends of the feeding line), L, W, and H represent length, width, and height, and the specific parameter values ​​of the first curved dielectric layer 1a or the second curved dielectric layer 1b of the microwave antenna and each radiation patch or sub-radiation patch are shown in the following table.

[0226] Parameter table of the structure corresponding to each radiation patch or sub-radiation patch of the microwave antenna

[0227]

[0228] Based on the above, the parameters of the structure corresponding to each radiating patch or sub-radiating patch of the microwave antenna are evaluated as follows. The microwave antenna is a converter that can convert the guided wave on the transmission line to the electromagnetic wave in the free space. Different structures can achieve different performance parameters, and its main performance parameters are standing wave ratio, gain, S parameters and Smith chart.

[0229] The full name of standing wave ratio is voltage standing wave ratio, also known as VSWR or SWR, which refers to the ratio of the voltage between the antinode and the trough of the transmission line, that is:

[0230]

[0231] Where K is the reflection coefficient, R and r are the output impedance and input impedance respectively.

[0232] When the two impedance values ​​are the same, a perfect match is achieved, the reflection coefficient K is equal to 0, and the standing wave ratio is 1. When the antenna standing wave ratio is closer to 1, it means that the antenna system matches the transmission line or load impedance, and can maximize the signal transmission to the target device, achieving the best transmission quality. When the VSWR is larger, it means that the reflection is greater and the impedance matching is worse. The reasonable range of the antenna standing wave ratio is usually between 1 and 1.5.

[0233] Figure 6is the standing wave ratio corresponding to each sub-radiation patch in the microwave antenna of the embodiment of the present invention. Figure 6 As shown, at an operating frequency of 2.050 GHz to 2.063 GHz, the standing wave ratio of a single antenna unit (only one radiation patch or one sub-radiation patch is set) is stable between 1.2 and 1.5, which basically meets the standing wave ratio requirement of the antenna.

[0234] The gain of an antenna refers to the ratio of the power density of the signal generated by an actual microwave antenna and an ideal radiating unit at the same point in space under the same input power. The most commonly used antenna gain unit is dBi. The radiation pattern of a microwave antenna includes the main lobe, side lobe, and back lobe. The narrower the main lobe, the smaller the side lobe, and the higher the gain.

[0235] The higher the antenna gain, the greater the radiated power of the antenna in its main radiation direction, which means that the antenna's signal coverage range will also be wider. Figure 7 is the gain corresponding to the 2D and 3D directional patterns of each sub-radiation patch in the microwave antenna of the embodiment of the present invention. Figure 7 As shown, the maximum microwave gain corresponding to the microwave antenna with only one radiation patch or one sub-radiation patch is 16.8dBi, the energy is concentrated in the main lobe, the 3db beam width of the main lobe reaches 94.6°, it has strong directivity, and its microwave field can cover a longer distance.

[0236] Figure 8 1 is a schematic diagram of ports corresponding to the vector network analyzer for measuring the S parameters of each sub-radiation patch in the microwave antenna according to an embodiment of the present invention. The S parameters are also called scattering parameters, which mainly describe the electromagnetic characteristics of the antenna during signal transmission and reception. The vector network analyzer can collect signal changes, such as Figure 8 As shown, the classic two-port network. Among them, S 11 is the input reflection coefficient, which indicates the proportion of the signal emitted from the antenna input that is reflected back, reflecting the matching performance of the microwave antenna. 21 is the forward transmission coefficient, which represents the signal loss from one port input to the microwave antenna and output to another port; S 12 Indicates the influence of the output end on the input end; S 22 is the output reflection coefficient, also known as output return loss. In the intracerebral hemorrhage model, S 11 The sensitivity is the best, so this paper extracts S 11 For evaluation parameters.

[0237] In the embodiments of the present disclosure and other possible embodiments, for each sub-radiating patch in the microwave antenna (a microwave antenna with only one radiating patch or one sub-radiating patch) within a first set working frequency band (for example, a 2.04-2.06GHz frequency band), the working bandwidth corresponding to the microwave antenna with only one radiating patch or one sub-radiating patch is -10dBi; the gain corresponding to the microwave antenna with only one radiating patch or one sub-radiating patch is 16.8dB in the main radiation direction; the standing wave ratio corresponding to the microwave antenna with only one radiating patch or one sub-radiating patch does not exceed 1.5 within the working frequency band.

[0238] Fig. 9 is the S parameter corresponding to each sub-radiation patch in the microwave antenna measured in the embodiment of the present invention. Fig. 9 It can be seen that the microwave antenna corresponding to the microwave antenna with only one radiating patch or one sub-radiating patch is set. The S of the antenna unit (microwave antenna) under -10dBi 11 The operating frequency is between 2.04-2.06GHz, and the maximum gain is 16.8dB, indicating that the radiation performance of the antenna unit is good.

[0239] like Figure 1 As shown, the conformal array antenna (i.e., microwave antenna) designed in the present disclosure is composed of radiating patches or sub-radiating patches corresponding to 16 antenna units, which are symmetrically distributed in a ring around the head curve. The antenna is divided into two left and right sub-arrays, corresponding to the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b respectively; wherein, the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b are also provided with multiple groups of first radiating patches connected to the first excitation port 36 and multiple groups of second radiating patches connected to the second excitation port 55 respectively.

[0240] Among them, Figure 1 As shown, the multiple groups of first radiation patches include: 8 radiation patches or each sub-radiation patch arranged evenly. For example, the 8 radiation patches or sub-radiation patches arranged evenly are respectively set as the first sub-radiation patch 21, the second sub-radiation patch 22, the third sub-radiation patch 23, the fourth sub-radiation patch 24, the fifth sub-radiation patch 25, the sixth sub-radiation patch 26, the seventh sub-radiation patch 27, and the eighth sub-radiation patch 28, forming a corresponding first sub-array, the first sub-array is configured as a 1×8 first surface array, and the 1×8 first surface array corresponding to the first sub-array is configured as a left-brain surface array or a right-brain surface array.

[0241] Among them, Figure 1As shown, similarly, the multiple groups of second radiation patches include: 8 radiation patches or sub-radiation patches arranged evenly. For example, the 8 radiation patches or sub-radiation patches arranged evenly are respectively set as the ninth sub-radiation patch 29, the tenth sub-radiation patch 40, the eleventh sub-radiation patch 41, the twelfth sub-radiation patch 42, the thirteenth sub-radiation patch 43, the fourteenth sub-radiation patch 44, the fifteenth sub-radiation patch 45, and the sixteenth sub-radiation patch 46 to form a corresponding second sub-array, the second sub-array is configured as a 1×8 second surface array, and the second sub-array corresponding to the 1×8 second surface array is configured as a left-brain surface array or a right-brain surface array.

[0242] Specifically, Figure 1 As shown, when the 1×8 first array corresponding to the first sub-array is configured as a left-brain array, the 1×8 second array corresponding to the second sub-array is configured as a right-brain array; or, when the 1×8 first array corresponding to the first sub-array is configured as a right-brain array, the 1×8 second array corresponding to the second sub-array is configured as a left-brain array.

[0243] In the embodiments of the present disclosure and other possible embodiments, the entire conformal array antenna (i.e., microwave antenna) has a diameter of 573.04 mm, a height of 193.35 mm, and a thickness of 2.08 mm, which can achieve full coverage of the head and has good inclusiveness. In terms of feeding form, the antenna adopts a microstrip line feeding method, which effectively suppresses the mutual coupling effect between patches and the influence of other electromagnetic interference factors while ensuring low-loss signal transmission, thereby ensuring that the entire array antenna can provide accurate, stable and repeatable measurement results during the detection process.

[0244] In an embodiment of the present disclosure, when the first set curved surface curvature and the second set curved surface curvature are set to 0, and the first curved surface dielectric layer 1a and the second curved surface dielectric layer 1b are in a straight plate state, the corresponding performance of the microwave antenna meets the second set working frequency band (for example, 2.01-2.03GHz frequency band), the working bandwidth is 0.02GHz, the gain in the main radiation direction is 30.95G dB, and the standing wave ratio does not exceed 2.

[0245] Fig.10 Schematic diagram of structural parameters corresponding to the microwave antenna for measuring the embodiment of the present invention. Fig.10 As shown, Fig.10 (a) is the front view corresponding to the measurement microwave antenna; Fig.10 (b) is the top view corresponding to the measurement microwave antenna; Fig.10 (c) is the left (right) view corresponding to the structure of the measured microwave antenna. Fig.10(a) Since the first curved dielectric layer 1a and the second curved dielectric layer 1b have the same size, in the main view corresponding to the measuring microwave antenna, the first curved dielectric layer 1a blocks the second curved dielectric layer 1b or the second curved dielectric layer 1b blocks the first curved dielectric layer 1a.

[0246] In the embodiments of the present disclosure and other possible embodiments, the feeding mechanism respectively connected to each radiation patch or sub-radiation patch of the multiple groups of first radiation patches and the first excitation port 36, and the feeding mechanism respectively connected to the multiple groups of second radiation patches and the second excitation port 55 form a feeding network (a first feeding network and a second feeding network).

[0247] In addition, in the embodiment of the present disclosure and other possible embodiments, the number of first power dividers or second power dividers or the corresponding power distribution number connected to the first excitation port 36 or the second excitation port 55 is determined according to the multiple groups of first radiation patches or multiple groups of second radiation patches. The first excitation port 36 is connected to each radiation patch or each sub-radiation patch in the first radiation patch through the corresponding first power divider and the first feeding network; the second excitation port 55 is connected to each radiation patch or each sub-radiation patch in the second radiation patch through the corresponding second power divider and the second feeding network; the number of the first power dividers or the corresponding power distribution number is the same as the number of groups corresponding to the multiple groups of first radiation patches; similarly, the number of the second power dividers or the corresponding power distribution number is the same as the number of groups corresponding to the multiple groups of second radiation patches.

[0248] Specifically, in Fig.10 In the embodiment, the first feeding network and the second feeding network respectively use a 4-way power divider to evenly transfer the energy provided by the first excitation port 36 and the second excitation port 55 to the four groups of first radiation patches and the four groups of second radiation patches. The width of the transmission line (feeding line) of the feeding network near the bottom of each radiation patch (each sub-radiation patch) is slightly wider than the width of the transmission line (feeding line) at the far end, which is used to adjust the matching degree between the four groups of first radiation patches and / or the four groups of second radiation patches above and the corresponding feeding lines.

[0249] Parameter table of microwave antenna corresponding structure

[0250]

[0251]

[0252] In the CST software, the excitation power is set to 1mW and a separate simulation of the microwave antenna is performed. Fig.11is the S parameter of the microwave antenna corresponding to the measurement microwave antenna in the embodiment of the present invention. The S parameter of the microwave antenna (i.e., scattering parameter, a key indicator for describing the reflection and transmission characteristics at the antenna port) is as follows. Fig.11 As shown, when the microwave antenna operates at its center frequency of 1.967 GHz, the gain of the microwave antenna is 24.52 dBi, which significantly exceeds that of a single antenna unit (each radiation patch or sub-radiation patch of the microwave antenna), meaning that it has stronger penetration than a single antenna unit, thus enhancing signal strength and coverage.

[0253] Fig.12 is the standing wave ratio of the microwave antenna corresponding to the measuring microwave antenna in the embodiment of the present invention. Fig.12 As shown in the figure, the standing wave ratio (VSWR) of the microwave antenna is in the range of 1.13 to 1.34. This low VSWR characteristic indicates that good impedance matching is achieved between the antenna and the feeder, reducing energy reflection, thereby improving energy transmission efficiency and reducing system losses. This characteristic is one of the important indicators for evaluating the radiation performance of the antenna and is directly related to the overall effectiveness of the microwave antenna.

[0254] In an embodiment of the present disclosure, a set distance between the opposite ends of the first curved surface dielectric layer 1a with a first set curved surface curvature and the second curved surface dielectric layer 1b with a second set curved surface curvature satisfies that a beam width corresponding to a set decibel on a main lobe of the radiation pattern at an operating frequency reaches a set angle; wherein, at the operating frequency, the set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna is configured to be 3 decibels; wherein, at the operating frequency, a beam width corresponding to a set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna reaches a set angle of 120 degrees; wherein, the set distance between the opposite ends of the first curved surface dielectric layer 1a with a first set curved surface curvature and the second curved surface dielectric layer 1b with a second set curved surface curvature is configured to be 177.50 millimeters.

[0255] Fig.13 is the gain corresponding to the 2D and 3D directions of the microwave antenna of the embodiment of the present invention. Fig.12 As shown, the curvature of the first curved dielectric layer 1a and the second curved dielectric layer 1b, and the distance L5 between the two ends of the first curved dielectric layer 1a and the second curved dielectric layer 1b affect the beam width to reach a set angle of 120°. At an operating frequency of 1.967GHz, the antenna's directional pattern main lobe 3db beam width reaches 120° (the curvature of the antenna and L5 affect the beam width to 120°). This wide beam width ensures that the antenna can fully cover the target area in the detection application, and the microwave antenna's directional pattern has a good roundness. In the application scenario of skull detection, the antenna can completely cover the left and right brain regions.

[0256] In the embodiments of the present disclosure, a brain hemorrhage detection system is also proposed, including or using the above-mentioned microwave antenna. The first curved surface medium layer 1a and the second curved surface medium layer 1b form a brain accommodation space inside; the microwave antenna is used to receive the input reflection coefficient corresponding to the brain in the brain accommodation space; the input reflection coefficient is related to the electromagnetic parameters corresponding to the brain hemorrhage or brain hematoma or brain tissue.

[0257] In an embodiment of the present disclosure, the cerebral hemorrhage detection system also includes: a processor; wherein the processor is used to control the excitation source to send microwave signals to the brain accommodation space through the microwave antennas corresponding to the first curved medium layer 1a and the second curved medium layer 1b and to control the microwave antenna to receive input reflection coefficient signals.

[0258] In the embodiments of the present disclosure and other possible embodiments, the skull model used is derived from the CQ500 public data set in New Delhi, USA. In the process of analyzing the skull structure, we subdivided its main body into four key components: skull, brain parenchyma, cerebrospinal fluid and hematoma, in order to achieve accurate simulation of the complex anatomical structure of the head. This study used the 3DSlicer medical image processing and analysis software platform, and through manual segmentation technology, identified and marked the boundaries of the skull, brain parenchyma, cerebrospinal fluid and hematoma layer by layer to ensure the accuracy and consistency of the segmentation, and used a 3D reconstruction module to generate a bionic head model.

[0259] In the embodiments of the present disclosure and other possible embodiments, the segmented data of each part is then exported to the CST simulation software for subsequent electromagnetic field simulation and analysis. In the CST software, based on the dielectric constant and conductivity data of each part of the brain tissue, as shown in the following table, four new materials, namely skull, brain parenchyma, cerebrospinal fluid and hematoma, are created in the material selection interface, and corresponding parameters are set for these four structures one by one, thereby simulating a skull model with hematoma.

[0260] Electromagnetic parameters of the main tissues of the human brain at 1.967 GHz

[0261]

[0262] The head bionic model (head model) is placed in the center of the two conformal array antennas, and the excitation power of the vector network analyzer connected to the two conformal array antennas is set to 1mW in the CST Microwave Studio. Figure 19 is the input reflection coefficient (Input Reflection Coefficient, S) corresponding to the scattering parameters of the antenna itself. 11 ) curve and the input reflection coefficient (Input ReflectionCoefficient, S) corresponding to the scattering parameters of the bionic head11 ) curve comparison chart.

[0263] Fig.14 is the S corresponding to the microwave antenna of the embodiment of the present invention and the microwave antenna with the head bionic model added 11 Curve comparison chart. Fig.14 It can be seen that the working frequency band of the antenna below -10dB is 1.94~1.96GHz. After adding the head model, the entire curve shifts to the left to 1.93-1.98GHz, and the corresponding maximum gain changes from 24.52dBi to 18.41dBi. In the head simulation calculation area, the maximum electric field strength is 32.65V / m. The maximum allowable value of human radiation energy density under the corresponding frequency IEEE standard is 7.2mW / cm 2 .

[0264] The energy density can be converted into electric field strength using formula (3-9), which is 110.9 V / m, and 32.65 V / m is much smaller than this value. At a power of 1 mW, the electric field strength radiated by the antenna to the human head is much smaller than the maximum allowable value of the IEEE standard, indicating that the antenna is used for cerebral hemorrhage detection and meets the electromagnetic radiation standard.

[0265]

[0266] Insert a sphere into the brain of the head model, and give the sphere the dielectric constant and tangential loss of blood, and then you get a brain hemorrhage simulation model. In this experiment, blood cells with radii of 10, 20, and 40 mm were used to simulate 3.14, 12.56, and 50.24 mL of bleeding, corresponding to mild, moderate, and severe bleeding levels, respectively.

[0267] Fig.15 is the S of the three bleeding rates at 1.94 to 1.96 GHz in the embodiment of the present invention. 11 Curve. Fig.15 As shown, Fig.15 (b) Fig.15 (a) A local enlarged view at 1.94-1.96 GHz. Fig.15 It can be seen that the S 11 There is a significant difference. As the frequency increases, S 11 The phase value shows a trend of decreasing first and then increasing. SPSS26 was used to analyze the S of three bleeding quantities in the antenna working frequency band of 1.94 to 1.96 GHz. 11 The simulation results were subjected to Friedman tests for multiple related samples, and the test results are shown in the table. The test results show that in the antenna working frequency band (1.94~1.96GHz), the S 11 The difference was statistically significant (P<0.05), indicating that the antenna can detect different degrees of cerebral hemorrhage.

[0268] S of three bleeding rates at 1.94 to 1.96 GHz 11 Friedman test results for multiple correlated samples of amplitude values

[0269]

[0270] Fig.16 is S at two different positions at 1.94-1.96 GHz in the embodiment of the present invention 11 Curve. Fig.16 As shown in the figure, the two different positions are configured as the left and right hemispheres. In the brain, the corpus callosum is used as the partition between the left and right hemispheres. In this experiment, spheres with radii of 10, 20, and 40 mm were set in the left and right hemispheres to simulate hematomas in different positions. Fig.16 It can be seen that the S of the left and right hemispheres 11 There are obvious differences in the values. When the hematoma is 10mm and 20mm, the resonance frequency of the left hemisphere is slightly lower than that of the right hemisphere, and the resonance depth is slightly higher than that of the right hemisphere. As the hematoma volume increases, the working frequency band of the antenna remains almost unchanged, and the resonance depth changes. Within the working frequency range, the left and right hemispheres with small hematoma volumes have the highest S 11 The phase difference is larger.

[0271] SPSS26 was used to analyze the S of three groups of different positions in the antenna working frequency band of 1.94~1.96GHz. 11 The simulation results were tested with two independent samples, and the test results are shown in the table. The test results show that S at three different positions in the antenna operating frequency band (1.94~1.96GHz) 11 The difference was statistically significant (P<0.05), indicating that the antenna can detect cerebral hemorrhage in different locations.

[0272] S of hematomas at two different locations at 1.94-1.96 GHz 11 Two independent sample test results of amplitude value

[0273]

[0274] The execution subject of the microwave antenna design and cerebral hemorrhage simulation detection method can be an image processing device, for example, the microwave antenna design and cerebral hemorrhage simulation detection method can be executed by a terminal device or a server or other processing device, wherein the terminal device can be a user equipment (User Equipment, UE), a mobile device, a user terminal, a terminal, a cellular phone, a cordless phone, a personal digital assistant (Personal Digital Assistant, PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, etc. In some possible implementations, the microwave antenna design and cerebral hemorrhage simulation detection method can be implemented by a processor calling a computer-readable instruction stored in a memory.

[0275] Those skilled in the art will understand that, in the above-mentioned microwave antenna design and cerebral hemorrhage simulation detection method in the specific implementation mode, the writing order of each step does not mean a strict execution order and does not constitute any limitation on the implementation process. The specific execution order of each step should be determined by its function and possible internal logic.

[0276] The present disclosure also proposes a brain hemorrhage detection simulation device, characterized in that it includes or applies a microwave antenna designed by the microwave antenna design method as described above; or, includes or applies a microwave antenna as described above; and, a third acquisition unit, used to obtain an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; a third determination unit, used to determine, based on the input reflection coefficient signal, whether the head bionic model in the brain accommodation space has one or more of a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma location.

[0277] The present disclosure also proposes a brain hemorrhage detection simulation device, characterized in that it includes or applies a microwave antenna designed by the microwave antenna design method as described above; or, includes or applies a microwave antenna as described above; and, a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute: obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining, based on the input reflection coefficient signal, whether the head bionic model in the brain accommodation space has one or more of a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma location; and / or,

[0278] The present disclosure also proposes a brain hemorrhage detection simulation device, characterized in that it includes or applies a microwave antenna designed by the microwave antenna design method as described above; or, includes or applies a microwave antenna as described above; and a computer-readable storage medium on which computer program instructions are stored, and when the computer program instructions are executed by a processor, they are implemented to: obtain an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed on the inner sides of the first curved surface medium layer and the second curved surface medium layer; and determine, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, one or more of the degree of bleeding and the location of the hematoma in the head bionic model in the brain accommodation space.

[0279] The present disclosure also proposes a cerebral hemorrhage detection simulation device, including or applying a microwave antenna designed by the microwave antenna design method as described above; or, including or applying a microwave antenna as described above; and, a computer program product, on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, it is implemented to: obtain an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed on the inner side of the first curved surface medium layer and the second curved surface medium layer; and determine, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, one or more of the degree of bleeding and the location of the hematoma in the head bionic model in the brain accommodation space.

[0280] In the embodiment of the present disclosure, it also includes: a head bionic model construction unit, including: performing skull, brain parenchyma, cerebrospinal fluid and hematoma segmentation on the brain image to obtain the corresponding brain morphology; and respectively determining the electromagnetic parameters corresponding to the skull, the brain parenchyma, the cerebrospinal fluid and the hematoma; performing three-dimensional reconstruction based on the brain morphology and the corresponding electromagnetic parameters to construct a head bionic model.

[0281] In an embodiment of the present disclosure, the third determination unit includes: a first sub-determination unit, a method for determining whether there is a hematoma corresponding to bleeding in the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: obtaining a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding and a second bionic model to be detected; using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving the first input reflection coefficient signal corresponding to the second head bionic model; based on the first input reflection coefficient signal and the first preset input reflection coefficient signal, determining whether there is a hematoma corresponding to bleeding in the second bionic model to be detected; wherein the microwave signal transmitted to the second head bionic model using the microwave antenna is the same as the operating frequency corresponding to the determination of the first preset input reflection coefficient signal.

[0282] In the embodiment of the present disclosure and other possible embodiments, the method for determining the first preset input reflection coefficient signal corresponding to the first head bionic model without bleeding includes: acquiring the first head bionic model corresponding to the first head bionic model without bleeding; transmitting a microwave signal to the first head bionic model by using the microwave antenna, and receiving the first preset input reflection coefficient signal corresponding to the first head bionic model; and / or,

[0283] In the embodiments of the present disclosure and other possible embodiments, the method for determining whether there is a hematoma corresponding to bleeding in the second bionic model to be detected based on the first input reflection coefficient signal and the first preset input reflection coefficient signal includes: if the numerical value corresponding to the first input reflection coefficient signal is greater than or equal to the numerical value corresponding to the first preset input reflection coefficient signal, then there is a hematoma corresponding to bleeding in the second bionic model to be detected; otherwise, there is no hematoma corresponding to bleeding in the second bionic model to be detected.

[0284] In an embodiment of the present disclosure, the third determination unit includes: a second sub-determination unit, a method for determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal, including: obtaining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of different degrees of hematoma corresponding to the bleeding and the second bionic model to be detected; if the second bionic model has a hematoma corresponding to the bleeding; then using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a second input reflection coefficient signal corresponding to the second head bionic model; based on the second input reflection coefficient signal and the multiple preset input reflection coefficient signal intervals, determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space; wherein the microwave signal emitted to the second head bionic model using the microwave antenna is the same as the working frequency corresponding to the determination of the multiple preset input reflection coefficient signal intervals.

[0285] In the embodiments of the present disclosure and other possible embodiments, the method for determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematoma of different degrees corresponding to the bleeding includes: respectively acquiring multiple third head bionic models of hematoma of different degrees corresponding to the bleeding; respectively transmitting microwave signals to the multiple third head bionic models using the microwave antenna, and receiving input reflection coefficient signals corresponding to the multiple third head bionic models; dividing the intervals according to the input reflection coefficient signals corresponding to the multiple third head bionic models, and determining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of hematoma of different degrees corresponding to the bleeding.

[0286] In the embodiments of the present disclosure and other possible embodiments, the degree of bleeding is configured as a mild bleeding degree, a moderate bleeding degree, and a severe bleeding degree, and the mild bleeding degree, the moderate bleeding degree, and the severe bleeding degree respectively correspond to the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval of the multiple preset input reflection coefficient signal intervals; based on the fact that the second input reflection coefficient signal corresponding to the second head bionic model falls within the first preset input reflection coefficient signal interval, the second preset input reflection coefficient signal interval, and the third preset input reflection coefficient signal interval, the different degrees of hematoma corresponding to the second head bionic model are determined.

[0287] In an embodiment of the present disclosure, the third determination unit includes: a third sub-determination unit, a method for determining the position of a hematoma corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: if there is a hematoma corresponding to bleeding in the second bionic model; then determining the position information corresponding to the second input reflection coefficient signal corresponding to the second head bionic model; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0288] The present disclosure also proposes a cerebral hemorrhage detection simulation device, including or applying a microwave antenna designed by the microwave antenna design method as described above; or, including or applying a microwave antenna as described above; or, applying a cerebral hemorrhage detection simulation method as described above; or, including or applying a cerebral hemorrhage detection simulation device as described above; and, a fourth acquisition unit, used to acquire an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; a fourth determination unit, used to determine whether there is a hematoma corresponding to bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first brain without bleeding; and The interruption and execution unit is used for generating a hematoma degree detection instruction and / or a hematoma position detection instruction if there is a hematoma corresponding to the bleeding in the brain to be detected; under the hematoma degree detection instruction and / or the hematoma position detection instruction corresponding to the hematoma, the bleeding degree corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and a third head bionic model of different degrees of hematomas corresponding to the bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains of different degrees of hematomas corresponding to the bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0289] The present disclosure also proposes a cerebral hemorrhage detection simulation device, including or applying a microwave antenna designed by the microwave antenna design method as described above; or, including or applying a microwave antenna as described above; or, applying a cerebral hemorrhage detection simulation method as described above; or, including or applying a cerebral hemorrhage detection simulation device as described above; and, a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute: obtaining an input reflection coefficient signal corresponding to a skull to be detected in the brain accommodation space formed on the inner side of the first curved surface medium layer and the second curved surface medium layer; determining based on the input reflection coefficient signal corresponding to the skull to be detected and a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding or a first skull without bleeding, Determine whether there is a hematoma corresponding to the bleeding in the brain to be detected; if there is a hematoma corresponding to the bleeding in the brain to be detected, generate a hematoma degree detection instruction and / or a hematoma position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, determine the bleeding degree corresponding to the brain to be detected in the brain accommodating space based on the input reflection coefficient signal corresponding to the brain to be detected and a third head bionic model of different degrees of hematomas corresponding to the bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains of different degrees of hematomas corresponding to the bleeding; or, determine the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0290] The present disclosure also proposes a cerebral hemorrhage detection simulation device, including or applying a microwave antenna designed by the microwave antenna design method as described above; or, including or applying a microwave antenna as described above; or, applying a cerebral hemorrhage detection simulation method as described above; or, including or applying a cerebral hemorrhage detection simulation device as described above; and, a computer-readable storage medium having computer program instructions stored thereon, which, when executed by a processor, implement: obtaining an input reflection coefficient signal corresponding to a skull to be detected in the brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining the skull to be detected based on the input reflection coefficient signal corresponding to the skull to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first skull without bleeding. Detect whether there is a hematoma corresponding to the bleeding in the brain; if there is a hematoma corresponding to the bleeding in the brain to be detected, generate a hematoma degree detection instruction and / or a hematoma position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, determine the bleeding degree corresponding to the brain to be detected in the brain accommodating space based on the input reflection coefficient signal corresponding to the brain to be detected and a third head bionic model of different degrees of hematomas corresponding to the bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains of different degrees of hematomas corresponding to the bleeding; or, determine the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0291] The present disclosure also proposes a cerebral hemorrhage detection simulation device, including or applying the microwave antenna design method as described above to obtain a microwave antenna; or, including or applying the microwave antenna as described above; or, applying the cerebral hemorrhage detection simulation method as described above; or, including or applying the cerebral hemorrhage detection simulation device as described above; and, a computer program product, on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, the following is achieved:

[0292] Acquire an input reflection coefficient signal corresponding to the brain to be detected in the brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer;

[0293] Determine whether there is a hematoma corresponding to the bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and the first head bionic model without bleeding or the first preset input reflection coefficient signal corresponding to the first brain without bleeding;

[0294] If there is a hematoma corresponding to the bleeding in the brain to be detected, a hematoma degree detection instruction and / or a hematoma position detection instruction is generated; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the bleeding degree corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematomas corresponding to the bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains with different degrees of hematomas corresponding to the bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

[0295] In some embodiments, the functions or modules included in the device provided in the embodiments of the present disclosure can be used to execute the microwave antenna design and cerebral hemorrhage simulation detection method described in the above method embodiments. Its specific implementation can refer to the description of the above microwave antenna design and cerebral hemorrhage simulation detection method embodiments. For the sake of brevity, it will not be repeated here.

[0296] In summary, the present invention designs a symmetrical dual-channel conformal array microwave antenna, and optimizes the antenna structure and parameters through CST microwave software, which can be used for cerebral hemorrhage detection. Combined with the symmetry of the human brain, the structure of the microwave antenna tightly surrounds the curve of the skull, and the microwave field direction can completely cover the left and right hemispheres of the brain. The microwave antenna selects a frequency of 1-3GHz. Microwaves in this frequency band have a certain degree of penetration into biological tissues, which helps to improve the accuracy and sensitivity of detection. The selection of microwave antenna materials comprehensively considers the performance, plasticity, and cost-effectiveness of the material. This study selects F4B as the substrate. The characteristics of this material include low dielectric constant, low dielectric loss, low moisture absorption rate, isotropy, etc. In terms of feeding form, microstrip line feeding is used to effectively suppress interference while ensuring low-loss signal transmission. The results show that the commonality array microwave antenna has the characteristics of low operating frequency and high in-band gain. At the same time, the present invention uses 3DSlicer software to reconstruct the bionic model of cerebral hemorrhage, ensuring the high accuracy and consistency of the reconstructed model in the anatomical structure, so that the final generated bionic model of cerebral hemorrhage can more realistically restore the complex physical structure and electromagnetic distribution characteristics of the human brain. In addition, microwave detection technology is very safe for cerebral hemorrhage detection, and the thermal effect and other potential biological effects on human tissue are relatively small. Under reasonable power control, the safety of experimental research can be guaranteed. As a natural and green prevention and treatment method, it reduces the medical intervention and use of chemical drugs for patients, which meets the development requirements of green medicine. And the products of this project can be designed as wearable and soft bioelectronic products, just like skin patches, which can be used as adhesive bandages, making it an instant diagnostic technology. Finally, clinical studies on non-invasive methods for measuring intracranial volume include transcranial Doppler ultrasound (TCD), magnetic resonance imaging (MRI), computed tomography (CT), optic nerve sheath diameter (ONSD) measurement, and tympanic membrane displacement. These methods eliminate the risk of infection and bleeding, but their accuracy is limited, expensive professional equipment is required, and they cannot be used in pre-hospital emergency and primary care, which greatly increases the time for patients to seek medical treatment and increases the economic burden. Compared with traditional manual detection methods, patch antenna detection can reduce labor costs and improve detection efficiency, reduce production costs and be more accurate.

[0297] Public use of microwave antennas for preliminary screening can quickly identify patients suspected of cerebral hemorrhage, winning valuable time for further diagnosis and treatment. It can provide instant ambulance bedside testing, allowing doctors to quickly obtain key information at the patient's bedside and make timely treatment decisions. In primary hospitals, it can assist young doctors in making preliminary diagnoses and decisions on cerebral hemorrhage, and help rural medical care. This technology is low-cost, portable, simple and fast to operate. It can be applied to microwave imaging in the future and has the potential to become an effective method for stroke diagnosis and treatment decisions. At the same time, microwave detection technology is a safe and non-invasive diagnostic technology that can distinguish the dielectric properties of healthy and malignant tissues at microwave frequencies. Compared with traditional detection technology, its low cost, no ionizing radiation, and simple portability are the core of medical ecological civilization construction. This technology can be extended to other disease detection and home medical device fields, and has good development prospects.

[0298] Fig.17 800 is a block diagram of an electronic device 800 according to an exemplary embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like. Fig.17 , the electronic device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0299] The processing component 802 generally controls the overall operation of the electronic device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0300] The memory 804 is configured to store various types of data to support the operation of the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk. The power supply component 806 provides power to various components of the electronic device 800. The power supply component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing and distributing power for the electronic device 800.

[0301] The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the electronic device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0302] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the electronic device 800 is in an operating mode, such as a call mode, a recording mode, and a voice recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0303] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0304] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the electronic device 800. For example, the sensor assembly 814 can detect the open / closed state of the electronic device 800, the relative positioning of the components, such as the display and keypad of the electronic device 800, and the sensor assembly 814 can also detect the position change of the electronic device 800 or a component of the electronic device 800, the presence or absence of contact between the user and the electronic device 800, the orientation or acceleration / deceleration of the electronic device 800, and the temperature change of the electronic device 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

[0305] The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0306] In an exemplary embodiment, the electronic device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0307] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 804 including computer program instructions, which can be executed by a processor 820 of an electronic device 800 to perform the above method.

[0308] Fig.18 1 is a block diagram of an electronic device 1900 according to an exemplary embodiment. For example, the electronic device 1900 may be provided as a server. Fig.18, the electronic device 1900 includes a processing component 1922, which further includes one or more processors, and a memory resource represented by a memory 1932 for storing instructions executable by the processing component 1922, such as an application. The application stored in the memory 1932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 1922 is configured to execute instructions to perform the above method.

[0309] The electronic device 1900 may also include a power supply component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input / output (I / O) interface 1958. The electronic device 1900 may operate based on an operating system stored in the memory 1932, such as Windows Server™, Mac OS X™, Unix™, Linux™, FreeBSD™ or the like.

[0310] In an exemplary embodiment, a non-volatile computer-readable storage medium is also provided, such as a memory 1932 including computer program instructions, which can be executed by a processing component 1922 of an electronic device 1900 to perform the above method. The present disclosure can be a system, method and / or computer program product. A computer program product can include a computer-readable storage medium having computer-readable program instructions for causing a processor to implement various aspects of the present disclosure.

[0311] Computer readable storage medium can be a tangible device that can hold and store instructions used by an instruction execution device. Computer readable storage medium can be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any suitable combination thereof. More specific examples (non-exhaustive list) of computer readable storage medium include: a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a static random access memory (SRAM), a portable compact disk read-only memory (CD-ROM), a digital versatile disk (DVD), a memory stick, a floppy disk, a mechanical encoding device, for example, a punch card or a convex structure in a groove on which instructions are stored, and any suitable combination thereof. The computer readable storage medium used here is not interpreted as a transient signal itself, such as a radio wave or other freely propagating electromagnetic wave, an electromagnetic wave propagated by a waveguide or other transmission medium (for example, a light pulse by an optical fiber cable), or an electrical signal transmitted by a wire.

[0312] The technology can be extended to other embodiments of the present disclosure described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used in this article is intended to best explain the principles of the embodiments, practical applications, or technical improvements to the technology in the market, or to enable other ordinary technicians in the art to understand the embodiments disclosed herein.

Claims

1. A microwave antenna design method, characterized in that: include: Obtaining a first curved surface dielectric layer (1a) of a first set curved surface curvature and a second curved surface dielectric layer (1b) of a second set curved surface curvature; arranging a plurality of first radiation patches of a first set size and a plurality of second radiation patches of a second set size on the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b), respectively; determining a corresponding set distance between opposite ends of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) under the condition that a beam width corresponding to a set decibel on a main lobe of a microwave antenna pattern at a set operating frequency reaches a set angle; or, A first curved surface dielectric layer (1a) with a first variable curved surface curvature and a second curved surface dielectric layer (1b) with a second variable curved surface curvature are obtained; a plurality of groups of first radiation patches of a first set size and a plurality of groups of second radiation patches of a second set size are respectively arranged on the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b); the corresponding distance between the opposite ends of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) is configured as a set distance; under the condition that the beam width corresponding to a set decibel on the main lobe of the microwave antenna pattern at a set working frequency reaches a set angle, the first variable curved surface curvature and the second variable curved surface curvature are determined.

2. The microwave antenna design method according to claim 1, characterized in that: The method for determining the first set size corresponding to each radiation patch or sub-radiation patch in the plurality of groups of first radiation patches comprises: obtaining a set resonant frequency f r , the first conductivity μ corresponding to the first dielectric layer 01 , a first thickness h1 and a first relative dielectric constant ε r1 Based on the setting resonant frequency f r , the first conductivity μ 01 , the first thickness h1 and the first relative dielectric constant ε r1 , determine the first width corresponding to the first set size of each radiation patch or sub-radiation patch; obtain the first equivalent dielectric constant ε of the feeding mechanism connected to each radiation patch or sub-radiation patch and arranged on the first dielectric layer rε1 According to the first width, the first thickness h1 and the first relative dielectric constant ε r1 Determine the corresponding first stretching length ΔL1; according to the first equivalent dielectric constant ε rε1 and the first stretching length ΔL1 determines a first length corresponding to a first set size of each radiation patch or sub-radiation patch; and / or, The method for determining the second set size corresponding to each radiation patch or sub-radiation patch in the plurality of groups of second radiation patches comprises: obtaining a set resonant frequency f r , the second conductivity μ corresponding to the second dielectric layer 02 , the second thickness h2 and the second relative dielectric constant ε r2 Based on the setting resonant frequency f r The second conductivity μ 02 , the second thickness h2 and the second relative dielectric constant ε r2 , determine the second width corresponding to the second set size of each radiation patch or sub-radiation patch; obtain the second equivalent dielectric constant ε of the feeding mechanism connected to each radiation patch or sub-radiation patch and arranged on the second dielectric layer rε2 According to the second width, the second thickness h2 and the second relative dielectric constant ε r2 Determine the corresponding second stretching length ΔL2; according to the second relative dielectric constant ε r2 and the second stretching length ΔL2 determines a second length corresponding to a second set size of each radiation patch or sub-radiation patch; and / or, Among them, the first set curved surface curvature is the same as the second set curved surface curvature; and / or, the first variable curved surface curvature is the same as the second variable curved surface curvature; and / or, the first set size is the same as the second set size; and / or, at the operating frequency, the set decibel configuration on the main lobe of the radiation pattern corresponding to the microwave antenna is 3 decibels; and / or, at the operating frequency, the beam width corresponding to the set decibel on the main lobe of the radiation pattern corresponding to the microwave antenna reaches a set angle of 120 degrees.

3. The microwave antenna design method according to any one of claims 1 to 2, characterized in that: Determine the first length, first width and first thickness of the first curved dielectric layer (1a) based on the first sub-length, first sub-width and first thickness corresponding to the first dielectric layer and the first size corresponding to each radiation patch or sub-radiation patch on the first dielectric layer and the number of radiation patches or sub-radiation patches; and / or, Determine the second length, second width and second thickness of the second curved dielectric layer (1b) based on the second sub-length, second sub-width and second thickness corresponding to the second dielectric layer and the second size corresponding to each radiation patch or sub-radiation patch on the second dielectric layer and the number of radiation patches or sub-radiation patches; and / or, It also includes: a first grounding layer and a second grounding layer are respectively provided on opposite sides of the plurality of groups of first radiation patches and the plurality of groups of second radiation patches on the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b); and / or, the first grounding layer covers one side of the first curved surface dielectric layer (1a); and / or, the second grounding layer covers one side of the second curved surface dielectric layer (1b); and / or, The materials of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) are one or more of polytetrafluoroethylene, Taconite, ceramics, polyimide, and polymer compounds obtained by polymerization of tetrafluoroethylene; and / or, the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) are one or more of polytetrafluoroethylene plate, tetrafluoro plate, Teflon plate, and Teflon plate; and / or, The first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) have the same corresponding shape; and / or the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) having the same corresponding shape are configured as a rectangle.

4. A microwave antenna design device, characterized in that: include: A first acquisition unit is used to acquire a first curved surface dielectric layer (1a) of a first set curved surface curvature and a second curved surface dielectric layer (1b) of a second set curved surface curvature; a first setting unit is used to respectively set a plurality of first radiation patches of a first set size and a plurality of second radiation patches of a second set size on the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b); a first determination unit is used to determine a corresponding set distance between opposite ends of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) under the condition that a beam width corresponding to a set decibel on a main lobe of a microwave antenna pattern at a set working frequency reaches a set angle; or, A second acquisition unit is used to acquire a first curved surface dielectric layer (1a) of a first variable curved surface curvature and a second curved surface dielectric layer (1b) of a second variable curved surface curvature; a second setting unit is used to respectively set a plurality of first radiation patches of a first set size and a plurality of second radiation patches of a second set size on the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b); a configuration unit is used to configure the corresponding distance between the opposite ends of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) as a set distance; a second determination unit is used to determine the first variable curved surface curvature and the second variable curved surface curvature under the condition that the beam width corresponding to the set decibel on the main lobe of the microwave antenna directional pattern at the set working frequency reaches a set angle; or, Comprising: a processor; a memory for storing processor executable instructions; wherein the processor is configured to call the instructions stored in the memory to execute the microwave antenna design method according to any one of claims 1 to 3; or, The method comprises: a computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the microwave antenna design method according to any one of claims 1 to 3; or The invention comprises: a computer program product on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, the microwave antenna design method according to any one of claims 1 to 3 is implemented.

5. A microwave antenna, characterized in that: The method is designed by using the microwave antenna design method as described in any one of claims 1 to 3; or the method is designed by using the microwave antenna design device as described in claim 4.

6. A microwave antenna, characterized in that: include: A first curved surface medium layer (1a) with a first set curved surface curvature and a second curved surface medium layer (1b) with a second set curved surface curvature; a first excitation port (36) and a second excitation port (55) are respectively arranged on the first curved surface medium layer (1a) and the second curved surface medium layer (1b); Wherein, the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) are respectively provided with a plurality of groups of first radiation patches connected to the first excitation port (36) and a plurality of groups of second radiation patches connected to the second excitation port (55); and the set distance between the opposite ends of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) satisfies that the beam width corresponding to the set decibel on the main lobe of the microwave antenna's directional pattern at the operating frequency reaches a set angle.

7. The microwave antenna according to claim 5 or 6, characterized in that: The first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) having the same shape are configured as rectangles; and / or, At the operating frequency, the set decibel configuration on the main lobe of the directional pattern corresponding to the microwave antenna is 3 decibels; and / or, at the operating frequency, the beam width corresponding to the set decibel on the main lobe of the directional pattern corresponding to the microwave antenna reaches a set angle of 120 degrees; and / or, The shape of each sub-radiation patch of each group of first radiation patches and each sub-radiation patch of each group of second radiation patches having the same shape is configured as a rectangle; and / or, It also includes: an excitation source connected to the first excitation port (36) and / or the second excitation port (55), respectively; wherein the excitation source is used to send excitation signals to the multiple groups of first radiation patches and / or the multiple groups of second radiation patches; and / or, The materials of the first curved surface dielectric layer (1a) and the second curved surface dielectric layer (1b) are one or more of polytetrafluoroethylene, taconil, ceramic, polyimide, and polymer compounds obtained by polymerization of tetrafluoroethylene; and / or, It also includes: a first grounding layer; the first grounding layer is arranged on one side of the first curved surface dielectric layer (1a); the multiple groups of first radiation patches are arranged on the other side of the first curved surface dielectric layer (1a); and / or the first grounding layer arranged on one side of the first curved surface dielectric layer (1a) covers one side of the first curved surface dielectric layer (1a); and / or, Each radiation patch or each sub-radiation patch in the multiple groups of first radiation patches and / or the multiple groups of second radiation patches is provided with an inward groove on one side of the feeding mechanism connected thereto, and the feeding mechanism is connected to each corresponding radiation patch through the groove.

8. A method for simulating cerebral hemorrhage detection, characterized in that: A microwave antenna comprising or applying the microwave antenna design method as claimed in any one of claims 1 to 3 to obtain a microwave antenna; or, a microwave antenna comprising or applying the microwave antenna as claimed in any one of claims 4 to 7; and obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved medium layer and the second curved medium layer; and determining, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma location in the head bionic model in the brain accommodation space; and / or, The method for determining the head bionic model comprises: performing skull, brain substance, cerebrospinal fluid and hematoma segmentation on a brain image to obtain a corresponding brain morphology; and respectively determining electromagnetic parameters corresponding to the skull, the brain substance, the cerebrospinal fluid and the hematoma; performing three-dimensional reconstruction based on the brain morphology and the corresponding electromagnetic parameters to construct a head bionic model; and / or, The method for determining whether a head bionic model in the brain accommodation space has a hematoma corresponding to bleeding based on the input reflection coefficient signal comprises: obtaining a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding and a second bionic model to be detected; transmitting a microwave signal to the second head bionic model by using the microwave antenna, and receiving a first input reflection coefficient signal corresponding to the second head bionic model; determining whether the second bionic model to be detected has a hematoma corresponding to bleeding based on the first input reflection coefficient signal and the first preset input reflection coefficient signal; and / or, The method for determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal comprises: obtaining a plurality of preset input reflection coefficient signal intervals corresponding to the third head bionic model of different degrees of hematoma corresponding to the bleeding and a second bionic model to be detected; if the second bionic model has a hematoma corresponding to the bleeding; using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a second input reflection coefficient signal corresponding to the second head bionic model; determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the second input reflection coefficient signal and the plurality of preset input reflection coefficient signal intervals; and / or, A method for determining a hematoma position corresponding to a head bionic model in the brain accommodation space based on the input reflection coefficient signal comprises: if a hematoma corresponding to bleeding exists in the second bionic model; then determining position information corresponding to a second input reflection coefficient signal corresponding to the second head bionic model; if the position information is in a set left brain area, then the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

9. A cerebral hemorrhage detection simulation device, characterized in that: Comprising or applying the microwave antenna design method as claimed in any one of claims 1 to 3 to design to a microwave antenna; or, comprising or applying a microwave antenna as described in any one of claims 4 to 7; and, A third acquisition unit is used to acquire an input reflection coefficient signal corresponding to the head bionic model in the brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; a third determination unit, configured to determine, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma position on the head bionic model in the brain accommodation space, or more thereof; and / or, The method comprises: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute: obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma position in the head bionic model in the brain accommodation space; and / or, The invention comprises: a computer-readable storage medium having computer program instructions stored thereon, wherein when the computer program instructions are executed by a processor, the invention realizes: obtaining an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma position in the head bionic model in the brain accommodation space; and / or, The invention comprises: a computer program product having a computer program / instruction set thereon, wherein when the computer program / instruction is executed by a processor, the computer program / instruction is implemented to: obtain an input reflection coefficient signal corresponding to a head bionic model in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determine, based on the input reflection coefficient signal, whether there is a hematoma corresponding to bleeding, a degree of bleeding, and a hematoma position in the head bionic model in the brain accommodation space; and / or, It also includes: a head bionic model construction unit, including: performing skull, brain substance, cerebrospinal fluid and hematoma segmentation on the brain image to obtain the corresponding brain morphology; and respectively determining the electromagnetic parameters corresponding to the skull, the brain substance, the cerebrospinal fluid and the hematoma; performing three-dimensional reconstruction based on the brain morphology and the corresponding electromagnetic parameters to construct a head bionic model; and / or, The third determination unit includes: a first sub-determination unit, a method for determining whether there is a hematoma corresponding to bleeding in the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: obtaining a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding and a second bionic model to be detected; using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a first input reflection coefficient signal corresponding to the second head bionic model; based on the first input reflection coefficient signal and the first preset input reflection coefficient signal, determining whether there is a hematoma corresponding to bleeding in the second bionic model to be detected; and / or, The third determination unit includes: a second sub-determination unit, a method for determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal, including: obtaining multiple preset input reflection coefficient signal intervals corresponding to the third head bionic model of different degrees of hematoma corresponding to the bleeding and the second bionic model to be detected; if the second bionic model has a hematoma corresponding to the bleeding; using the microwave antenna to transmit a microwave signal to the second head bionic model, and receiving a second input reflection coefficient signal corresponding to the second head bionic model; determining the degree of bleeding corresponding to the head bionic model in the brain accommodation space based on the second input reflection coefficient signal and the multiple preset input reflection coefficient signal intervals; and / or, The third determination unit includes: a third sub-determination unit, a method for determining the position of a hematoma corresponding to the head bionic model in the brain accommodation space based on the input reflection coefficient signal, comprising: if there is a hematoma corresponding to bleeding in the second bionic model; then determining the position information corresponding to the second input reflection coefficient signal corresponding to the second head bionic model; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

10. A cerebral hemorrhage detection device, characterized in that: A microwave antenna comprising or applying the microwave antenna design method as claimed in any one of claims 1 to 3 to obtain a microwave antenna; or, a microwave antenna comprising or applying the microwave antenna as claimed in any one of claims 4 to 7; or, applying the cerebral hemorrhage detection simulation method as claimed in claim 8; or, including or applying the cerebral hemorrhage detection simulation device as claimed in claim 9; and, a fourth acquisition unit, configured to acquire an input reflection coefficient signal corresponding to the brain to be detected in the brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; a fourth determination unit, configured to determine whether there is a hematoma corresponding to bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first preset input reflection coefficient signal corresponding to the first head bionic model without bleeding or the first brain without bleeding; A judgment and execution unit, for generating a hematoma degree detection instruction and / or a hematoma position detection instruction if there is a hematoma corresponding to the bleeding of the brain to be detected; under the hematoma degree detection instruction and / or the hematoma position detection instruction corresponding to the hematoma, determining the bleeding degree corresponding to the brain to be detected in the brain accommodation space based on the input reflection coefficient signal corresponding to the brain to be detected and a third head bionic model of different degrees of hematomas corresponding to the bleeding or a plurality of preset input reflection coefficient signal intervals corresponding to a plurality of second brains of different degrees of hematomas corresponding to the bleeding; or determining the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected; If the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain; or, The invention comprises: a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to call the instructions stored in the memory to execute: obtaining an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining whether there is a hematoma corresponding to bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first preset input reflection coefficient signal corresponding to a first head bionic model without bleeding or a first brain without bleeding; if there is a hematoma corresponding to bleeding in the brain to be detected, generating a hematoma degree detection instruction and / or hematoma position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the degree of bleeding corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematoma corresponding to bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains with different degrees of hematoma corresponding to bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain; or, The invention comprises: a computer-readable storage medium having computer program instructions stored thereon, wherein when the computer program instructions are executed by a processor, the following are achieved: obtaining an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining whether there is a hematoma corresponding to bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first brain without bleeding; if there is a hematoma corresponding to bleeding in the brain to be detected, generating a hematoma degree detection instruction and / or a hematoma detection instruction. hematoma position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the degree of bleeding corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematoma corresponding to bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains of different degrees of hematoma corresponding to bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain; or, The invention comprises: a computer program product, on which a computer program / instruction is set, and when the computer program / instruction is executed by a processor, the following is achieved: obtaining an input reflection coefficient signal corresponding to a brain to be detected in a brain accommodation space formed inside the first curved surface medium layer and the second curved surface medium layer; determining whether there is a hematoma corresponding to bleeding in the brain to be detected based on the input reflection coefficient signal corresponding to the brain to be detected and a first head bionic model without bleeding or a first preset input reflection coefficient signal corresponding to the first brain without bleeding; if there is a hematoma corresponding to bleeding in the brain to be detected, generating a hematoma degree detection instruction and / or a hematoma detection instruction. Position detection instruction; under the hematoma degree detection instruction and / or hematoma position detection instruction corresponding to the hematoma, the degree of bleeding corresponding to the brain to be detected in the brain accommodating space is determined based on the input reflection coefficient signal corresponding to the brain to be detected and the third head bionic model of different degrees of hematoma corresponding to bleeding or multiple preset input reflection coefficient signal intervals corresponding to multiple second brains with different degrees of hematoma corresponding to bleeding; or, the position information corresponding to the input reflection coefficient signal corresponding to the brain to be detected is determined; if the position information is in the set left brain area, the hematoma exists in the left brain; otherwise, the hematoma exists in the right brain.

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