Microwave detection module with extended beam angle

Abstract

The present invention provides a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle has a target detection direction and can form a radiation space stretched in the radial direction of the target detection direction, correspondingly improving the plane beam angle of the radiation space so that the radiation space has a cylindrical shape within a corresponding detection distance range. When the microwave detection module with an extended beam angle is used for directional detection of human activities, the actual detection space of the microwave detection module with an extended beam angle corresponding to the radiation space can match the corresponding target detection space, thereby improving the detection stability of the microwave detection module with an extended beam angle.

Description

Technical Field

[0001] The invention relates to the field of microwave detection, and in particular to a microwave detection module with an extended beam angle. Background Art

[0002] Microwave detection technology, as an important hub connecting people and objects, and objects and objects, has unique advantages in behavior detection and existence detection technology. It can detect active objects without infringing on people's privacy, and therefore has broad application prospects. However, due to the lack of effective constraints and control means for electromagnetic radiation, that is, the shape adjustment means for the coverage range of electromagnetic radiation, the adaptability of microwave detection technology in different application scenarios in practical applications is limited. Specifically, due to the lack of effective constraints and control means for electromagnetic radiation, the actual detection space of the existing microwave detection module is difficult to control, which corresponds to the situation where the actual detection space of the existing microwave detection module does not match the corresponding target detection space, such as the situation where the actual detection space and the corresponding target space partially overlap, so that the target detection space outside the actual detection space cannot be effectively detected, and / or the actual detection space outside the target detection space has environmental interference, including motion interference, electromagnetic interference, and self-excited interference caused by the electromagnetic shielding environment, resulting in the problem of poor detection accuracy and / or poor anti-interference performance of the existing microwave detection module, that is, the existing microwave detection module has poor detection stability in practical applications.

[0003] The existing microwave detection technology mainly adopts a microwave detection module with a columnar radiation source structure and a microwave detection module with a planar radiation source structure. Figure 1A and Figure 1BAs shown, the microwave detection module 10A of the existing columnar radiation source structure and the microwave detection module 10B of the flat radiation source structure are respectively applied to the vertical detection scene, wherein the microwave detection module 10A of the columnar radiation source structure and the microwave detection module 10B of the flat radiation source structure are respectively applied to the vertical downward human activity detection in the same place, wherein the microwave detection module 10A of the columnar radiation source structure and the microwave detection module 10B of the flat radiation source structure respectively have a radiation space 100A and 100B, wherein the radiation space 100A and 100B respectively correspond to the electromagnetic radiation coverage range of the corresponding microwave detection module and correspond to the actual detection space of the corresponding microwave detection module. In the vertical detection application with the human body as the target detection object, the target detection space 200 corresponds to the activity space of the target human body on the corresponding target detection surface, and the reasonable target detection space 200 can be selected within the vertical projection surface range of the corresponding radiation space, the activity space of the target human body. In this application scenario, the radiation space 100A and 100B partially overlap with the corresponding target detection space 200, which causes the target human body outside the actual detection space to be unable to be effectively detected. At the same time, the space outside the target detection space 200 in the radiation space 100A and 100B accounts for a relatively high proportion. When there is environmental interference in the actual detection space outside the target detection space 200, including motion interference, electromagnetic interference and self-excited interference caused by the electromagnetic shielding environment, the detection result of the corresponding microwave detection module is easily disturbed.

[0004] Specifically, in conjunction with the accompanying drawings of the present invention, Figure 2A and Figure 2B As shown in FIG. 1 , the radiation patterns of the microwave detection module 10A with a cylindrical radiation source structure and the microwave detection module 10B with a flat radiation source structure corresponding to the corresponding radiation spaces 100A and 100B in the target detection direction are schematically shown. Then, corresponding to the shape and range of the radiation space 100A, in the attached Figure 1AIn the vertical detection application scenario of the microwave detection module 10A of the columnar radiation source structure shown in the figure, when the target human body walks in the target detection space 200, the head of the target human body may first enter the actual detection space corresponding to the radiation space 100A, and the legs of the target human body may not be covered by the actual detection space. This makes it impossible to effectively detect the activities of the target human body in the target detection space 200 outside the actual detection space, and correspondingly, it is impossible to obtain accurate detection results when judging the existence state of the target human body in combination with the movement of the target human body. At the same time, in the vertical upward direction opposite to the target detection direction, the actual detection space outside the target detection space 200 has a larger actual detection space proportion, so the microwave detection module 10A of the columnar radiation source structure is susceptible to environmental interference of the actual detection space outside the target detection space 200 in this application scenario. Corresponding to the shape and range of the radiation space 100B, in the attached Figure 1B In the vertical detection application scenario of the microwave detection module 10B of the flat radiation source structure shown, when the target human body walks in the target detection space 200, the target human body's legs may first enter the actual detection space corresponding to the radiation space 100B, and accurate detection results cannot be obtained when judging the existence state of the target human body in combination with the target human body's breathing and heartbeat movements. At the same time, in the vertically downward target detection direction, based on the penetration of electromagnetic waves into the corresponding target detection surface, the actual detection space outside the target detection space 200 has a larger actual detection space proportion, and the microwave detection module 10B of the flat radiation source structure is susceptible to environmental interference of the actual detection space outside the target detection space 200 in this application scenario.

[0005] In summary, a reasonable target detection space can be selected as the activity space of the target human body within the target projection surface range of the corresponding radiation space and is in the shape of a cylinder. The radiation space matching the target detection space should have a cylindrical shape within the corresponding detection distance range, such as a triangular cylinder, a square cylinder, a polygonal cylinder, a cylinder, an elliptical cylinder and other cylindrical shapes, which are correspondingly characterized by the size of the plane beam angle of the radiation space, where the plane beam angle of the radiation space is the radiation angle of the radiation space at 3dB gain, as shown in the attached figure. Figure 2B θ in the figure is used as the marker, and the larger the plane beam angle of the radiation space is, the more the shape of the radiation space in the corresponding detection distance range tends to be cylindrical. Summary of the invention

[0006] An object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle has a target detection direction and can form a radiation space stretched in the radial direction of the target detection direction, correspondingly improving the plane beam angle of the radiation space so that the radiation space has a cylindrical shape within a corresponding detection distance range. When the microwave detection module with an extended beam angle is used for directional detection of human activities, the actual detection space of the microwave detection module with an extended beam angle corresponding to the radiation space can match the corresponding target detection space, thereby improving the detection stability of the microwave detection module with an extended beam angle.

[0007] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the radiation space has a cylindrical shape within a corresponding detection distance range, and when the microwave detection module with an extended beam angle is used for directional detection of human activities, it is allowed to form a state corresponding to the target detection space and the above-mentioned detection distance range by adjusting the installation position of the microwave detection module with an extended beam angle, thereby correspondingly improving the coverage rate of the actual detection space to the target detection space, which is beneficial to improving the detection accuracy of the microwave detection module with an extended beam angle, and at the same time, it also increases the spatial proportion of the target detection space in the actual detection space, which is beneficial to improving the anti-interference performance of the microwave detection module with an extended beam angle.

[0008] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the plane beam angle of the radiation space is increased, and the detection distance range corresponding to the cylindrical portion of the radiation space is increased, thereby correspondingly improving the adaptability of the microwave detection module with an extended beam angle to the target detection space with different detection distance range requirements.

[0009] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle includes a plurality of dual coupled poles, wherein the dual coupled poles are arranged around a target direction axis pointing to the target detection direction, wherein two dual coupled poles respectively located in two relative radial directions of the target direction axis are a pair of relative dual coupled poles, and the physical arrangement and feeding design of the dual coupled poles satisfy: there is a phase difference greater than 90 degrees between at least one pair of relative dual coupled poles, thereby forming the radiation space stretched in the corresponding two relative radial directions of the target direction axis, and correspondingly improving the plane beam angle of the radiation space in the corresponding two relative radial directions of the target direction axis.

[0010] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein, based on a feeding design in which each pair of coupled poles is fed at the same phase point, the physical arrangement of the pair of coupled poles satisfies: there is a phase difference greater than 90 degrees between at least one pair of the opposite pair of coupled poles, thereby simplifying the feeding circuit design of the microwave detection module with an extended beam angle and forming the radiation space stretched in the corresponding two relative radial directions of the target direction axis based on the physical arrangement relationship of the pair of coupled poles.

[0011] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein each of the dual coupled poles includes two radiation source poles, wherein the two radiation source poles are divided into a first radiation source pole and a second radiation source pole according to their polarity in the corresponding feeding design, wherein the first radiation source pole has a first feeding end and is configured as a conductor extending with the first feeding end as an end, wherein the second radiation source pole has a second feeding end and is configured as a conductor extending with the second feeding end as an end, wherein the first radiation source pole and the second radiation source pole respectively extend in a direction away from each other with the first feeding end and the second feeding end as ends and respectively have a line length greater than or equal to λ / 16, wherein in the same dual coupled pole, the vector is marked with the first feeding end as the starting point and the second feeding end as the end point Where |a|≤λ / 32, that is, the first feeding end and the second feeding end of the same pair of coupled poles are close to each other within a distance range less than or equal to λ / 32, where λ is a wavelength parameter corresponding to the feeding frequency, and the two vectors of at least one pair of the coupled poles are opposite to each other. There is an angle greater than 90 degrees between them, so that on the basis of the feeding design in which each of the dual-coupled poles is fed at the same phase point, the physical arrangement of the dual-coupled poles can satisfy that there is an electric field direction angle difference greater than 90 degrees between the electric fields of at least one pair of the dual-coupled poles relative to each other, and correspondingly satisfy that there is a phase difference greater than 90 degrees between at least one pair of the dual-coupled poles relative to each other.

[0012] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle has an electromagnetic reflection surface, wherein each of the dual coupled poles is spaced from the electromagnetic reflection surface in the space corresponding to the electromagnetic reflection surface, so as to form a directional radiation characteristic of the microwave detection module with an extended beam angle in the target detection direction by virtue of the reflection characteristics of the electromagnetic reflection surface to electromagnetic waves, that is, the target detection direction is the direction from the electromagnetic reflection surface to the dual coupled poles, so that the microwave detection module with an extended beam angle can form a directional radiation space and is suitable for detecting the activities of objects in a directional space, and is beneficial for avoiding self-excitation of the microwave detection module with an extended beam angle and improving the anti-interference performance of the microwave detection module with an extended beam angle.

[0013] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the first radiation source poles are arranged radially around the target direction axis along the radial direction of the target direction axis with the first feeding ends being close to each other, and the second radiation source poles are arranged radially around the target direction axis along the radial direction of the target direction axis with the second feeding ends being close to each other, so as to facilitate the feeding design of the same-phase feeding for the first feeding ends and the second feeding ends, thereby facilitating the simplification of the feeding circuit design of the microwave detection module with an extended beam angle.

[0014] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the radiation source poles are arranged radially around the target direction axis in a state where the feeding ends are close to each other in the radial direction of the target direction axis, the number of the dual coupling poles is an odd number, and the first radiation source pole and the second radiation source pole are arranged alternately around the target direction axis, so that the two vectors of any relative pair of the dual coupling poles are There is an angle greater than 90 degrees between them, thereby forming the radiation space stretched in the radial direction of the target direction axis, and correspondingly improving the plane beam angle of the radiation space in each radial direction of the target direction axis.

[0015] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the radiation sources are arranged radially around the target direction axis along the radial direction of the target direction axis with the feeding ends close to each other, and the first feeding ends of the first radiation sources are gathered into one end, or the second feeding ends of the second radiation sources are gathered into one end, so that the first radiation sources can be fed together at the same end, or the second radiation sources can be fed together to achieve a feeding design of in-phase feeding, which is beneficial to simplify the feeding circuit design of the microwave detection module with an extended beam angle.

[0016] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein each of the radiation source poles is arranged around the target direction axis along the circumferential direction of the target direction axis, so as to adjust the cross-sectional shape of the radiation space perpendicular to the target direction axis based on the number of the dual coupling poles and the corresponding physical arrangement and feeding design, and correspondingly adjust the projection surface shape and range of the actual detection space of the microwave detection module with an extended beam angle on the corresponding target detection surface, that is, while maintaining the radiation space having a cylindrical shape within the corresponding detection distance range, the bottom surface shape and range of the cylindrical shape are adjusted, thereby facilitating improving the adaptability of the microwave detection module with an extended beam angle to the target detection space with different target detection surface shapes and range requirements.

[0017] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle further includes a first feed line corresponding to the number of the first radiation source poles and a second feed line corresponding to the number of the second radiation source poles, wherein the line length parameter L1 of the first feed line and the line length parameter L2 of the second feed line respectively satisfy: λ / 8≤L1≤λ / 2 and λ / 8≤L2≤λ / 2, wherein the first feed line and the second feed line are electrically connected to the first feeding end and the second feeding end, respectively, so that based on the setting of the parameters L1 and the parameters L2, each of the dual coupling poles can satisfy the corresponding impedance matching and generate an electric field coupling between the first radiation source and the second radiation source when being fed, which is sufficient to radiate electromagnetic waves outward.

[0018] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein when each of the radiation sources is arranged around the target direction axis along the circumferential direction of the target direction axis, the ends of each of the first feed lines away from the first feeding end are close to each other, and the ends of each of the second feed lines away from the second feeding end are close to each other, so as to facilitate the feeding design of feeding with the same phase by feeding the first feeding ends through the corresponding first feed lines and feeding the second feeding ends through the corresponding second feed lines, thereby facilitating the simplification of the feeding circuit design of the microwave detection module with an extended beam angle.

[0019] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein when each of the radiation sources is arranged around the target direction axis along the circumferential direction of the target direction axis, one end of each of the first feed lines away from the first feeding end is gathered into one end, or one end of each of the second feed lines away from the second feeding end is gathered into one end, so that a feeding design of in-phase feeding can be realized by feeding each of the first radiation sources through the corresponding first feed lines at the same end or feeding each of the second radiation sources through the corresponding second feed lines, which is conducive to simplifying the feeding circuit design of the microwave detection module with an extended beam angle.

[0020] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein in a state where each of the radiation source poles is arranged around the target direction axis along the circumferential direction of the target direction axis, one end of each of the first feed lines away from the first feeding end is gathered into one end, and one end of each of the second feed lines away from the second feeding end is gathered at the narrow end of a cone tube, so that the feeding design of in-phase feeding is realized by feeding the gathering end of each of the first feed lines away from the first feeding end and feeding the cone tube, and at the same time, based on the conical structure design of the cone tube between the electromagnetic reflection surface and the dual coupling poles, the near-field radiation of each of the dual coupling poles is balanced, thereby suppressing the generation of electromagnetic radiation of the dual coupling poles in the reverse direction of the target detection direction, that is, while maintaining the radiation space having a cylindrical shape within the corresponding detection distance range, the space ratio of the target detection space to the actual detection space is further improved, which is beneficial to improving the anti-interference performance of the microwave detection module with an extended beam angle.

[0021] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein in a state where each of the radiation source poles is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source pole and the second radiation source pole are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupled poles, the two vectors of any relative pair of the dual coupled poles are There is an angle greater than 90 degrees between them, thereby forming the radiation space stretched in each radial direction of the target direction axis, and correspondingly improving the plane beam angle of the radiation space in each radial direction of the target direction axis.

[0022] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein in a state where each of the radiation source poles is arranged around the target direction axis along the circumferential direction of the target direction axis, and in a state where the first radiation source pole and the second radiation source pole are alternately arranged around the target direction axis, an end of the first radiation source pole of the pair of coupled poles away from the first feeding end is integrally connected to an end of the second radiation source pole of the adjacent pair of coupled poles away from the second feeding end, so as to help balance the electric field coupling energy of each of the pair of coupled poles and help suppress the generation of electromagnetic radiation of the microwave detection module with an extended beam angle in the reverse direction of the target detection direction, while improving the structural stability of the microwave detection module with an extended beam angle.

[0023] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein in a state where each of the radiation source poles is arranged along the circumferential direction of the target direction axis around the target direction axis, the microwave detection module with an extended beam angle further includes at least one auxiliary dual coupling pole, wherein the auxiliary dual coupling pole includes two auxiliary radiation source poles, wherein the two auxiliary radiation source poles are divided into a first auxiliary radiation source pole and a second auxiliary radiation source pole according to their polarity in the corresponding feeding design, wherein the first auxiliary radiation source pole has a first auxiliary feeding end and is configured as a conductor extending with the first auxiliary feeding end as an end, wherein the second auxiliary radiation source pole has a second auxiliary feeding end and is configured as a conductor extending with the second auxiliary feeding end as an end, wherein in the same auxiliary dual coupling pole, a vector is marked with the first auxiliary feeding end as a starting point and the second auxiliary feeding end as an end point. Where |b|≤λ / 32, where the vector of the auxiliary dual coupling pole Intersect and be perpendicular to the target direction axis, so that when the radiation space has a cylindrical shape within the corresponding detection distance range, the flatness of the bottom surface of the cylindrical shape is improved by the auxiliary dual coupling poles.

[0024] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein when each of the radiation source poles is arranged around the target direction axis along the circumferential direction of the target direction axis, one end of each of the first feed lines away from the first feeding end is gathered into one end, the first radiation source poles and the second radiation source poles are alternately arranged around the target direction axis, and one end of the first radiation source pole of the dual coupling pole away from the first feeding end is integrally connected to one end of the second radiation source pole of the adjacent dual coupling pole away from the second feeding end, thereby improving the structural stability of the microwave detection module with an extended beam angle by integrating each of the dual coupling poles.

[0025] Another object of the present invention is to provide a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle has a plane beam angle greater than or equal to 90 degrees, and the microwave detection module corresponding to the extended beam angle has a cylindrical shape within a detection distance range of 4 meters and has good adaptability to the target detection space with a detection distance range of less than 4 meters. Since the target detection space with a detection distance range of less than 4 meters is mostly required in actual applications, the microwave detection module with an extended beam angle has good adaptability to the target detection space in actual applications.

[0026] According to one aspect of the present invention, the present invention provides a microwave detection module with an extended beam angle, wherein the microwave detection module with an extended beam angle comprises:

[0027] At least three dual coupled poles, wherein each of the dual coupled poles comprises two radiation source poles, wherein the two radiation source poles are divided into a first radiation source pole and a second radiation source pole according to their polarity in the corresponding feeding design, wherein the first radiation source pole has a first feeding end and is configured as a conductor extending with the first feeding end as an end, wherein the second radiation source pole has a second feeding end and is configured as a conductor extending with the second feeding end as an end, wherein the first radiation source pole and the second radiation source pole of the same dual coupled pole respectively extend in a direction away from each other with the first feeding end and the second feeding end as ends and respectively have a line length greater than or equal to λ / 16, wherein λ is a wavelength parameter corresponding to the feeding frequency, wherein in the same dual coupled pole, the vector is marked with the first feeding end as the starting point and the second feeding end as the end point where |a|≤λ / 32; and

[0028] An electromagnetic reflection surface, wherein the electromagnetic reflection surface is formed on the surface of a conductive plate, wherein each of the dual coupling poles is spaced from the electromagnetic reflection surface in a space corresponding to the electromagnetic reflection surface, wherein the direction from the electromagnetic reflection surface to the dual coupling poles is the target detection direction of the microwave detection module with the extended beam angle, wherein each of the radiation source poles is arranged around a target direction axis pointing to the target detection direction, wherein two of the dual coupling poles respectively located in two opposite radial directions of the target direction axis are a pair of opposite dual coupling poles, wherein at least one pair of opposite dual coupling poles has a phase difference greater than 90 degrees when being fed.

[0029] In one embodiment, the microwave detection module with extended beam angle further includes a number of first feed lines corresponding to the first feed ends and a number of second feed lines corresponding to the second feed ends, wherein the line length parameter L1 of the first feed line and the line length parameter L2 of the second feed line respectively satisfy: λ / 8≤L1≤λ / 2 and λ / 8≤L2≤λ / 2, wherein the first feed line and the second feed line are electrically connected to the first feed end and the second feed end, respectively.

[0030] In one embodiment, each of the first radiation source poles is arranged radially around the target direction axis along the radial direction of the target direction axis with the first feeding end close to the target direction axis, and each of the second radiation source poles is arranged radially around the target direction axis along the radial direction of the target direction axis with the second feeding end close to the target direction axis.

[0031] In one embodiment, the two vectors of at least one pair of the dual coupling poles are There is an angle greater than 90 degrees between them.

[0032] In one embodiment, the number of the dual coupling poles is an odd number, and the first radiation source poles and the second radiation source poles are alternately arranged around the target direction axis.

[0033] In one embodiment, the first feeding ends of the first radiation sources are collected into one end, or the second feeding ends of the second radiation sources are collected into one end.

[0034] In one embodiment, the first feeding lines and the second feeding lines are parallel to each other.

[0035] In one embodiment, at least one pair of the dual coupling poles are arranged along the radial direction of the target direction axis in a state where the end of the first radiation source pole away from the first feeding end is close to the target direction axis, so as to form two vectors of the pair of the dual coupling poles. A state in which the angle between them is greater than 90 degrees.

[0036] In one embodiment, each of the dual coupling poles is arranged radially around the target direction axis along the radial direction of the target direction axis in a state where the end of the first radiation source pole away from the first feeding end is close to the target direction axis, corresponding to the vectors forming each of the dual coupling poles The two vectors of any pair of the dual coupling poles are formed in a state where the radial direction of the target direction axis is directed around the target direction axis. A state having an angle greater than 90 degrees.

[0037] In one embodiment, the radiation source poles are arranged around the target direction axis along a circumferential direction of the target direction axis.

[0038] In one embodiment, in a state where the radiation source poles are arranged around the target direction axis along the circumferential direction of the target direction axis, the first radiation source poles and the second radiation source poles are alternately arranged around the target direction axis.

[0039] In one embodiment, one end of the first radiation source of the pair of coupled poles away from the first feeding end is integrally connected to one end of the second radiation source of the adjacent pair of coupled poles away from the second feeding end.

[0040] In one embodiment, the vector It satisfies 0.9λ / 128≤|a|≤1.1λ / 128.

[0041] In one embodiment, the radiation source pole of each pair of coupled poles is bent.

[0042] In one embodiment, ends of the first feeding lines away from the first feeding end are combined into one end.

[0043] In one embodiment, an end of each of the second feeding lines away from the second feeding end converges at a narrow end of a cone.

[0044] In one embodiment, the microwave detection module with extended beam angle further includes at least one auxiliary dual coupling pole, wherein the auxiliary dual coupling pole includes two auxiliary radiation source poles, wherein the two auxiliary radiation source poles are divided into a first auxiliary radiation source pole and a second auxiliary radiation source pole according to their polarity in the corresponding feeding design, wherein the first auxiliary radiation source pole has a first auxiliary feeding end and is configured as a conductor extending with the first auxiliary feeding end as an end, wherein the second auxiliary radiation source pole has a second auxiliary feeding end and is configured as a conductor extending with the second auxiliary feeding end as an end, wherein the first auxiliary radiation source pole and the second auxiliary radiation source pole of the same auxiliary dual coupling pole extend in a direction away from each other with the first auxiliary feeding end and the second auxiliary feeding end as ends, respectively, wherein in the same auxiliary dual coupling pole, a vector is marked with the first auxiliary feeding end as a starting point and the second auxiliary feeding end as an end point. Where |b|≤λ / 32, where the vector of the auxiliary dual coupling pole Intersecting and perpendicular to the target direction axis.

[0045] In one embodiment, the number of the auxiliary dual coupling poles is two, wherein the two vectors of the two auxiliary dual coupling poles are They intersect the target direction axis perpendicularly in a mutually perpendicular state to form an orthogonal relationship between the two auxiliary dual coupling poles.

[0046] In one embodiment, one end of each of the first feed lines away from the first feeding end and the first auxiliary feeding end of the first auxiliary radiation source are converged into one end, and one end of each of the second feed lines away from the second feeding end and the second feeding end of the second auxiliary radiation source are converged at the narrow end of the cone around the target direction axis.

[0047] In one embodiment, the first feeding line and the second feeding line of each pair of coupled poles are bent. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] Figure 1A This is a schematic diagram of a scenario in which a microwave detection module with an existing columnar radiation source structure is applied to vertical detection.

[0049] Figure 1B This is a schematic diagram of a scenario in which a microwave detection module with an existing flat-plate radiation source structure is applied to vertical detection.

[0050] Figure 2A The radiation pattern of the microwave detection module with the existing columnar radiation source structure.

[0051] Figure 2B The radiation pattern of the microwave detection module with the existing flat-plate radiation source structure.

[0052] Figure 3A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to an embodiment of the present invention.

[0053] Figure 3B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0054] Figure 4A It is a structural schematic diagram of the microwave detection module with extended beam angle according to a variant embodiment of the above embodiment of the present invention.

[0055] Figure 4B Schematic diagram of the radiation pattern of the microwave detection module with the extended beam angle according to the above variant embodiment of the present invention.

[0056] Figure 5A It is a structural schematic diagram of the microwave detection module with extended beam angle according to another variant embodiment of the above embodiment of the present invention.

[0057] Figure 5B Schematic diagram of the radiation pattern of the microwave detection module with the extended beam angle according to the above variant embodiment of the present invention.

[0058] Fig. 6A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0059] Figure 6B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0060] Fig. 7A It is a structural schematic diagram of the microwave detection module with extended beam angle according to a variant embodiment of the above embodiment of the present invention.

[0061] Figure 7B Schematic diagram of the radiation pattern of the microwave detection module with the extended beam angle according to the above variant embodiment of the present invention.

[0062] Fig. 8A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0063] Figure 8B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0064] Fig.9A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0065] Fig. 9BSchematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0066] Fig. 10A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0067] Fig. 10B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0068] Fig.11A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0069] Fig. 11B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0070] Fig. 12A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0071] Fig. 12B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0072] Fig.13A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0073] Fig. 13B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0074] Fig.14A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0075] Fig. 14B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0076] Fig.15A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0077] Fig. 15B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0078] Fig.16A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0079] Fig. 16BSchematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0080] Fig.17A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0081] Fig. 17B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0082] Fig.18A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0083] Fig.18B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0084] Fig.19A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0085] Fig.19B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0086] Fig. 20A FIG. 4 is a schematic structural diagram of a microwave detection module with an extended beam angle according to another embodiment of the present invention.

[0087] Fig. 20B Schematic diagram of the radiation pattern of the microwave detection module with extended beam angle according to the above embodiment of the present invention.

[0088] Fig.21 It is a schematic diagram of a scenario in which the microwave detection module with an extended beam angle according to one of the above embodiments of the present invention is applied to vertical detection. DETAILED DESCRIPTION

[0089] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0090] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0091] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0092] Referring to the accompanying drawings of the present invention Figure 3A and Figure 5B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to different embodiments of the present invention are respectively illustrated, wherein in these embodiments of the present invention, the microwave detection module with an extended beam angle has a target detection direction (corresponding to the Z-axis direction in the figure) and can form a radiation space 100 stretched in the radial direction of the target detection direction, and the plane beam angle of the radiation space is correspondingly increased (corresponding to the θ mark in the figure), so that the radiation space 100 has a cylindrical shape within the corresponding detection distance range. When the microwave detection module with an extended beam angle is used for directional detection of human activities, the actual detection space of the microwave detection module with an extended beam angle corresponding to the radiation space 100 can match the corresponding target detection space, thereby improving the detection stability of the microwave detection module with an extended beam angle.

[0093] Specifically, in these embodiments of the present invention, the microwave detection module with an extended beam angle includes at least three dual coupled poles 10 and an electromagnetic reflection surface 20, wherein each of the dual coupled poles 10 is spaced apart from the electromagnetic reflection surface 20 in the space corresponding to the electromagnetic reflection surface 20, wherein the electromagnetic reflection surface 20 is formed on the surface of a conductive plate, so as to form a directional radiation characteristic of the microwave detection module with an extended beam angle in the target detection direction by virtue of the reflection characteristic of the electromagnetic reflection surface 20 to electromagnetic waves, that is, the target detection direction is the direction from the electromagnetic reflection surface 20 to the dual coupled poles 10, then the microwave detection module with an extended beam angle can form the directional radiation space 100 and is suitable for detecting the activities of objects in a directional space, and is beneficial to avoid self-excitation of the microwave detection module with an extended beam angle and improve the anti-interference performance of the microwave detection module with an extended beam angle.

[0094] Further, each of the dual coupling poles 10 includes two radiation source poles 11, wherein each of the radiation source poles 11 is arranged around a target direction axis (corresponding to the Z axis in the figure) pointing to the target detection direction, wherein the two radiation source poles 11 are divided into a first radiation source pole 111 and a second radiation source pole 112 according to the polarity of the two radiation source poles 11 in the corresponding feeding design, wherein the first radiation source pole 111 has a first feeding end 1111 and is arranged as a conductor extending from the first feeding end 1111 as an end, wherein the second radiation source pole 112 is a first radiation source pole 111 having a first feeding end 1111 and a second radiation source pole 112 having a first feeding end 1111. The source 112 has a second feeding end 1121 and is configured as a conductor extending from the second feeding end 1121, wherein the first radiation source 111 and the second radiation source 112 are respectively extended in a direction away from each other from the first feeding end 1111 and the second feeding end 1121 as ends and have a line length greater than or equal to λ / 16, wherein in the same dual coupling pole 10, the vector is taken as the starting point of the first feeding end 1111 and the end point of the second feeding end 1121. Wherein |a|≤λ / 32, that is, the first feeding end 1111 and the second feeding end 1121 of the same dual coupling pole 10 are close to each other within a distance range less than or equal to λ / 32, where λ is a wavelength parameter corresponding to the feeding frequency. In this way, under the premise that the dual coupling pole 10 satisfies the corresponding impedance matching, when each of the dual coupling poles 10 is fed at the first feeding end 1111 and the second feeding end 1121 respectively, an electric field coupling sufficient to radiate electromagnetic waves outward can be generated between the first radiation source 111 and the second radiation source 112 of each of the dual coupling poles 10 to form the radiation space 100.

[0095] Preferably, the distance between the first feeding end 1111 and the second feeding end 1121 of the same pair of coupled poles 10 tends to λ / 128 within an error range of 10%, that is, 0.9λ / 128≤|a|≤1.1λ / 128, so as to reduce the mutual coupling loss between the first radiation source 111 and the second radiation source 112 when electric field coupling is generated between the first radiation source 111 and the second radiation source 112 of each pair of coupled poles 10.

[0096] Based on the above structure, the phase difference between each of the dual coupling poles 10 depends on the phase point of the first feeding end 1111 and the second feeding end 1121 and the vector The direction of the dual coupling pole 10 at the first feeding end 1111 and the second feeding end 1121 depends on the feeding design of the dual coupling pole 10, including the feeding circuit design and the feed source design, wherein the vector The direction corresponds to the physical arrangement of the dual-coupled poles 10, wherein two dual-coupled poles 10 located in two opposite radial directions of the target direction axis are a pair of opposite dual-coupled poles 10, and the physical arrangement and feeding design of the dual-coupled poles 10 satisfy: there is a phase difference greater than 90 degrees between at least one pair of opposite dual-coupled poles 10, so that the electromagnetic waves radiated outward by the opposite pair of dual-coupled poles 10 can repel each other to form the radiation space 100 stretched in the corresponding two opposite radial directions of the target direction axis, correspondingly improving the plane beam angle of the radiation space 100 in the corresponding two opposite radial directions of the target direction axis.

[0097] Specifically, referring to the accompanying drawings of the present invention, Figure 3A and Figure 3B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to an embodiment of the present invention are respectively illustrated. In this embodiment of the present invention, each of the first radiation source poles 111 is arranged radially around the target direction axis along the radial direction of the target direction axis with the first feeding end 1111 close to the target direction axis, and each of the second radiation source poles 112 is arranged radially around the target direction axis along the radial direction of the target direction axis with the second feeding end 1121 close to the target direction axis. This is beneficial to the centralized feeding of each of the first feeding ends 1111 and the centralized feeding of each of the second feeding ends 1121, and the feeding circuit design with the same feed source and the same phase feeding can be used to feed each of the dual coupled poles 10, which is beneficial to simplify the feeding circuit design and feed source design of the microwave detection module with an extended beam angle.

[0098] It can be understood that when the same feed source is used to feed each of the dual coupled poles 10 with the same phase feeding circuit design, the phase difference between the relative dual coupled poles 10 and the corresponding two vectors That is to say, in this embodiment of the present invention, when the same feed source is used to feed each of the dual coupling poles 10 using a feeding circuit design with in-phase feeding, the physical arrangement of each of the dual coupling poles 10 satisfies: the two vectors of at least one pair of the dual coupling poles 10 are opposite to each other. In this way, based on the feeding design in which each of the dual-coupled poles 10 is fed at the same phase point, the physical arrangement of the dual-coupled poles 10 can satisfy that the electric field of at least one pair of the dual-coupled poles 10 has an electric field direction angle difference of more than 90 degrees, and correspondingly satisfy that at least one pair of the dual-coupled poles 10 has a phase difference of more than 90 degrees and stretches the radiation space 100 in the corresponding two relative radial directions of the target direction axis.

[0099] Specifically, in this embodiment of the present invention, the number of the dual coupling poles 10 is an odd number. Figure 3A In the figure, the number of the dual coupling poles 10 is three, wherein the first radiation source pole 111 and the second radiation source pole 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source and the same phase feeding is used to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them, thereby forming the radiation space 100 stretched in each radial direction of the target direction axis, and correspondingly improving the plane beam angle of the radiation space 100 in each radial direction of the target direction axis.

[0100] It is worth mentioning that when the same feed source is used to feed each of the dual coupling poles 10 using a feeding circuit design of in-phase feeding, based on the structural relationship that the first feeding end 1111 and the second feeding end 1121 of the same dual coupling pole 10 are close to each other within a distance range less than or equal to λ / 32, in this embodiment of the present invention, the adjacent first radiation source pole 111 and the second radiation source pole 112 are allowed to be divided into the same dual coupling pole 10, and the opposite first radiation source pole 111 and the second radiation source pole 112 are also allowed to be divided into the same dual coupling pole 10. In other words, the first radiation source pole 111 can simultaneously generate electric field coupling with the adjacent second radiation source pole 112 and the opposite second radiation source pole 112. Therefore, based on the structure that each of the dual coupling poles 10 includes two radiation source poles 11, the determination of the phase difference between the relative dual coupling poles 10 should take into account all division methods of the dual coupling poles 10, that is, when determining the two vectors of at least one pair of the relative dual coupling poles 10 according to one of the division methods of the dual coupling poles 10, When the angle between the two pairs of the at least one pair of the dual coupling poles 10 is greater than 90 degrees, it is determined that the two vectors of There is an angle greater than 90 degrees between them.

[0101] Furthermore, in this embodiment of the present invention, the microwave detection module with extended beam angle further includes a number of first feed lines 31 corresponding to the number of the first feed ends 1111 and a number of second feed lines 32 corresponding to the number of the second feed ends 1121, wherein the line length parameter L1 of the first feed line 31 and the line length parameter L2 of the second feed line 32 respectively satisfy: λ / 8≤L1≤λ / 2 and λ / 8≤L2≤λ / 2, wherein the first feed line 31 and the second feed line 32 are respectively electrically connected to the first feed end 1111 and the second feed end 1121, so that based on the setting of the parameter L1 and the parameter L2, each of the dual coupling poles 10 can satisfy the corresponding impedance matching and generate an electric field coupling between the first radiation source pole 111 and the second radiation source pole 112 when being fed, which is sufficient to radiate electromagnetic waves outward.

[0102] In particular, in this embodiment of the present invention, each of the first feed lines 31 and the second feed lines 32 are parallel to each other, and the distance between the first feed line 31 and the second feed line 32 corresponds to the distance between the first feeding end 1111 and the second feeding end 1121 of the corresponding dual coupling pole 10, which satisfies the range less than or equal to λ / 32. In this way, when the first radiation source electrode 111 and the second radiation source electrode 112 are fed respectively through the corresponding first feed line 31 and the second feed line 32, the coupling effect between the first feed line 31 and the second feed line 32 can be reduced, which is conducive to reducing the loss of the first feed line 31 and the second feed line 32.

[0103] Furthermore, in this embodiment of the present invention, the first feed line 31 and the second feed line 32 are respectively and integrally extended to the corresponding first radiation source pole 111 and the second radiation source pole 112, which is beneficial to improve the structural stability and consistency of the microwave detection module with extended beam angle, and correspondingly improves the consistency and stability of the microwave detection module with extended beam angle.

[0104] It is worth mentioning that in some embodiments of the present invention, in which each of the radiation sources 11 is arranged radially around the target direction axis along the radial direction of the target direction axis with the feeding end close to the target direction axis, the first feeding end 1111 of each of the first radiation sources 111 is gathered into one end, or the second feeding end 1121 of each of the second radiation sources 112 is gathered into one end, so that the first radiation sources 111 can be fed together at the same end, or the second radiation sources 112 can be fed together at the same end to realize the feeding design of in-phase feeding, which is beneficial to simplify the feeding circuit design of the microwave detection module with extended beam angle.

[0105] Correspondingly, in a state where the radiation source electrodes 11 are arranged radially around the target direction axis along the radial direction of the target direction axis with the feeding end close to the target direction axis, when the first feeding ends 1111 of the first radiation source electrodes 111 are gathered into one end, or the second feeding ends 1121 of the second radiation source electrodes 112 are gathered into one end, the number of the corresponding first feeding lines 31 or the second feeding lines 32 corresponds to one.

[0106] Further reference is made to the accompanying drawings of the present invention. Figure 4A and Figure 4B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to a variant embodiment of the above embodiment of the present invention are respectively illustrated, wherein in this variant embodiment of the present invention, at least one pair of the dual coupling poles 10 are arranged along the radial direction of the target direction axis in a state where the end of the first radiation source pole 111 away from the first feeding end 1111 is close to the target direction axis, so as to form two vectors of the pair of the dual coupling poles 10 There is a state where there is an angle greater than 90 degrees between them, so that when each pair of coupled poles 10 is fed with the same feed source using a feeding circuit design with the same phase feeding, there is a phase difference greater than 90 degrees between the relative pair of coupled poles 10, and the radiation space 100 is stretched in the corresponding two relative radial directions of the target direction axis.

[0107] Specifically, in this variant embodiment of the present invention, the number of the dual coupling poles 10 is four, wherein each of the dual coupling poles 10 is arranged radially around the target direction axis along the radial direction of the target direction axis in a state where the end of the first radiation source pole 111 away from the first feeding end 1111 is close to the target direction axis, corresponding to the vectors of each of the dual coupling poles 10. The two vectors of each pair of the dual coupling poles 10 are formed in a state where the radial direction of the target direction axis is directed around the target direction axis. The state with an angle greater than 90 degrees, that is, the two vectors of any pair of the dual coupling poles 10 are opposite to each other. There is an angle greater than 90 degrees therebetween, thereby forming the radiation space 100 stretched in each radial direction of the target direction axis and improving the plane beam angle of the radiation space 100 in each radial direction of the target direction axis.

[0108] Referring to the accompanying drawings of the present invention Figure 5A and Figure 5BAs shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to another variant embodiment of the above embodiment of the present invention are respectively illustrated, wherein in this variant embodiment of the present invention, at least one pair of the dual coupling poles 10 are arranged along the radial direction of the target direction axis in a state where the end of the second radiation source pole 112 away from the second feeding end 1121 is close to the target direction axis, so as to form two vectors of the pair of the dual coupling poles 10 The reverse state is achieved, so that when each pair of coupled poles 10 is fed with power by the same feed source and the feeding circuit design with the same phase feeding is adopted, a phase difference greater than 90 degrees is provided between the relative pair of coupled poles 10, and the radiation space 100 is stretched in two relative radial directions corresponding to the target direction axis.

[0109] Specifically, in this variant embodiment of the present invention, the number of the dual coupling poles 10 is eight, wherein the dual coupling poles 10 are arranged radially around the target direction axis along the radial direction of the target direction axis in a state where the ends of the second radiation source pole 112 away from the second feeding end 1121 are close to each other, corresponding to the vectors of each of the dual coupling poles 10. The state of the target direction axis pointing to the target direction axis is formed so as to form two vectors of each pair of the dual coupling poles 10. The reverse state, that is, the two vectors of any pair of the dual coupling poles 10 are opposite to each other. There is an angle greater than 90 degrees therebetween, thereby forming the radiation space 100 stretched in each radial direction of the target direction axis and improving the plane beam angle of the radiation space 100 in each radial direction of the target direction axis.

[0110] Further reference is made to the accompanying drawings of the present invention. Fig. 6A and Fig. 17B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to different embodiments of the present invention are respectively illustrated, wherein in these embodiments of the present invention, the microwave detection module with an extended beam angle includes at least three dual coupling poles 10 and an electromagnetic reflection surface 20, wherein each of the dual coupling poles 10 is spaced from the electromagnetic reflection surface 20 in a space corresponding to the electromagnetic reflection surface 20, wherein the direction from the electromagnetic reflection surface 20 to the dual coupling poles 10 is the target detection direction of the microwave detection module with an extended beam angle, wherein each of the dual coupling poles 10 is around a target direction axis (corresponding to a target direction axis) pointing to the target detection direction. Fig. 6A and Figure 6BThe Z axis is set, wherein each of the dual coupling poles 10 includes two radiation source poles 11, wherein the two radiation source poles 11 are divided into a first radiation source pole 111 and a second radiation source pole 112 according to their polarity in the corresponding feeding design, wherein the first radiation source pole 111 has a first feeding end 1111 and is set as a conductor extending with the first feeding end 1111 as an end, wherein the second radiation source pole 112 has a second feeding end 1121 and is set as a conductor extending with the second feeding end 1121 as an end, wherein the first radiation source pole 111 and the second radiation source pole 112 are respectively extended in a direction away from each other with the first feeding end 1111 and the second feeding end 1121 as ends and respectively have a line length greater than or equal to λ / 16, wherein in the same dual coupling pole 10, the vector is marked with the first feeding end 1111 as the starting point and the second feeding end 1121 as the end point Wherein |a|≤λ / 32, that is, the first feeding end 1111 and the second feeding end 1121 of the same dual coupling pole 10 are close to each other within a distance range less than or equal to λ / 32, where λ is a wavelength parameter corresponding to the feeding frequency. In this way, under the premise that the dual coupling pole 10 satisfies the corresponding impedance matching, when each of the dual coupling poles 10 is fed at the first feeding end 1111 and the second feeding end 1121 respectively, an electric field coupling sufficient to radiate electromagnetic waves outward can be generated between the first radiation source 111 and the second radiation source 112 of each of the dual coupling poles 10 to form the radiation space 100.

[0111] Based on the above structure, the phase difference between each of the dual coupling poles 10 depends on the phase point of the first feeding end 1111 and the second feeding end 1121 and the vector The direction of the dual coupling pole 10 at the first feeding end 1111 and the second feeding end 1121 depends on the feeding design of the dual coupling pole 10, including the feeding circuit design and the feed source design, wherein the vector The direction corresponds to the physical arrangement of the dual-coupled poles 10, wherein two dual-coupled poles 10 located in two opposite radial directions of the target direction axis are a pair of opposite dual-coupled poles 10, and the physical arrangement and feeding design of the dual-coupled poles 10 satisfy: there is a phase difference greater than 90 degrees between at least one pair of opposite dual-coupled poles 10, so that the electromagnetic waves radiated outward by the opposite pair of dual-coupled poles 10 can repel each other to form the radiation space 100 stretched in the corresponding two opposite radial directions of the target direction axis, correspondingly improving the plane beam angle of the radiation space 100 in the corresponding two opposite radial directions of the target direction axis.

[0112] In particular, in these embodiments of the present invention, each of the radiation source poles 11 is arranged around the target direction axis along the circumferential direction of the target direction axis, so as to adjust the cross-sectional shape of the radiation space 100 perpendicular to the target direction axis based on the number and shape of the dual coupling poles 10 and the corresponding physical arrangement and feeding design, and correspondingly adjust the projection surface shape and range of the actual detection space of the microwave detection module with the extended beam angle on the corresponding target detection surface, that is, while maintaining the radiation space 100 in a cylindrical shape within the corresponding detection distance range, the bottom surface shape and range of the cylindrical shape are adjusted, thereby facilitating improving the adaptability of the microwave detection module with the extended beam angle to the target detection space with different target detection surface shapes and range requirements.

[0113] Furthermore, the microwave detection module with extended beam angle also includes first feed lines 31 corresponding to the number of the first radiation source poles 111 and second feed lines 32 corresponding to the number of the second radiation source poles 112, wherein the line length parameter L1 of the first feed line 31 and the line length parameter L2 of the second feed line 32 respectively satisfy: λ / 8≤L1≤λ / 2 and λ / 8≤L2≤λ / 2, wherein the first feed line 31 and the second feed line 32 are respectively electrically connected to the first feeding end 1111 and the second feeding end 1121, so that based on the setting of the parameters L1 and the parameters L2, each of the dual coupling poles 10 can satisfy the corresponding impedance matching and generate an electric field coupling between the first radiation source pole 111 and the second radiation source pole 112 when being fed, which is sufficient to radiate electromagnetic waves outward.

[0114] Similarly, in these embodiments of the present invention, the first feed line 31 and the second feed line 32 are respectively and integrally extended to the corresponding first radiation source pole 111 and the second radiation source pole 112, which is beneficial to improve the structural stability and consistency of the microwave detection module with extended beam angle, and correspondingly improves the consistency and stability of the microwave detection module with extended beam angle.

[0115] In particular, in these embodiments of the present invention, the first feed line 31 and the second feed line 32, which are respectively integrally extended from the first feed end 1111 and the second feed end 1121 of the same dual coupling pole 10, are parallel to each other at their ends close to the first feed end 1111 and the second feed end 1121, that is, in the first feed line 31 and the second feed line 32, which are respectively integrally extended from the first feed end 1111 and the second feed end 1121 of the same dual coupling pole 10, the first feed line 31 close to the second feed end 1121 is parallel to each other. An end of a feeding terminal 1111 is parallel to an end of the second feeding line 32 close to the second feeding terminal 1121, so that when the dual coupling pole 10 is fed via the first feeding line 31 and the second feeding line 32, the coupling effect between the first feeding line 31 and the second feeding line 32 can be reduced, which is beneficial to reducing the loss of the first feeding line 31 and the second feeding line 32, that is, the return loss S11 of the first feeding line 31 and the second feeding line 32 is reduced, which is beneficial to improve the gain of the microwave detection module with an extended beam angle.

[0116] Specifically, referring to the accompanying drawings of the present invention, Fig. 6A and Figure 6B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to an embodiment of the present invention are respectively illustrated. In this embodiment of the present invention, the ends of the first feed lines 31 away from the first feeding end 1111 are gathered into one end, and the ends of the second feed lines 32 away from the second feeding end 1121 are gathered at the narrow end of a cone 40. In this way, by feeding the gathering ends of the first feed lines 31 away from the first feeding end 1111 and feeding the cone 40, the feeding of each of the dual coupling poles 10 can be realized by using the same feed source design and feeding circuit design with in-phase feeding. This is beneficial to simplifying the feeding design of the microwave detection module with an extended beam angle. At the same time, based on the conical structure design of the conical tube 40 between the electromagnetic reflection surface 20 and the dual coupled poles 10, the near-field radiation of each of the dual coupled poles 10 is balanced, thereby suppressing the generation of electromagnetic radiation of the dual coupled poles 10 in the opposite direction of the target detection direction. That is, while maintaining the radiation space 100 with a cylindrical shape within the corresponding detection distance range, the spatial proportion of the target detection space in the actual detection space is further increased, which is beneficial to improving the anti-interference performance of the microwave detection module with an extended beam angle.

[0117] It can be understood that when the same feed source is used to feed each of the dual coupled poles 10 with the same phase feeding circuit design, the phase difference between the relative dual coupled poles 10 and the corresponding two vectors That is to say, in this embodiment of the present invention, when the same feed source is used to feed each of the dual coupling poles 10 using a feeding circuit design with in-phase feeding, the physical arrangement of each of the dual coupling poles 10 satisfies: the two vectors of at least one pair of the dual coupling poles 10 are opposite to each other. In this way, based on the feeding design in which each of the dual-coupled poles 10 is fed at the same phase point, the physical arrangement of the dual-coupled poles 10 can satisfy the requirement that at least one pair of the dual-coupled poles 10 has a phase difference of more than 90 degrees and stretch the radiation space 100 in the corresponding two relative radial directions of the target direction axis.

[0118] Specifically, in this embodiment of the present invention, in a state where each of the radiation source electrodes 11 is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source electrode 111 and the second radiation source electrode 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them, thereby forming the radiation space 100 stretched in each radial direction of the target direction axis, and correspondingly improving the plane beam angle of the radiation space 100 in each radial direction of the target direction axis.

[0119] For example, in this embodiment of the present invention, the number of the dual coupling poles 10 is three, and the number of the corresponding radiation source poles 11 is six, wherein in the state where the six radiation source poles 11 are arranged around the target direction axis along the circumferential direction of the target direction axis, and the first radiation source pole 111 and the second radiation source pole 112 are alternately arranged around the target direction axis, the physical arrangement of each of the dual coupling poles 10 further satisfies each of the vectors There is an angle of 120 degrees between each pair, that is, the two vectors of any pair of the dual coupling poles 10 are opposite to each other. There is an angle of 120 degrees between them, such as Fig. 6A The two vectors of the two dual coupling poles 10 located in the target direction axis in two opposite radial directions corresponding to the Y-axis direction and the reverse direction of the Y-axis There is an angle of 120 degrees between them.

[0120] Further reference is made to the accompanying drawings of the present invention. Fig. 7A and Figure 7B As shown, corresponding to Fig. 6AThe structure and radiation pattern of the microwave detection module with an extended beam angle in a variant embodiment of the above-mentioned embodiment are respectively illustrated, wherein in this variant embodiment of the present invention, the radiation source pole 11 of each of the dual coupling poles 10 is further bent, so as to reduce the size of the microwave detection module with an extended beam angle and adjust the shape of the radiation space 100 on the basis of maintaining the line length of the first radiation source pole 111 and the second radiation source pole 112 greater than or equal to λ / 16, thereby improving the adaptability of the microwave detection module with an extended beam angle.

[0121] In particular, in this variant embodiment of the present invention, the microwave detection module with extended beam angle further includes at least one auxiliary dual coupling pole 50, wherein the auxiliary dual coupling pole 50 includes two auxiliary radiation source poles 51, wherein the two auxiliary radiation source poles 51 are divided into a first auxiliary radiation source pole 511 and a second auxiliary radiation source pole 512 according to their polarities in the corresponding feeding design, wherein the first auxiliary radiation source pole 511 has a first auxiliary feeding end 5111 and is configured as a conductor extending from the first auxiliary feeding end 5111 as an end, wherein the second The auxiliary radiation source 512 has a second auxiliary feeding end 5121 and is configured as a conductor extending from the second auxiliary feeding end 5121 as an end, wherein the first auxiliary radiation source 511 and the second auxiliary radiation source 512 of the same auxiliary dual coupling pole 50 respectively extend in a direction away from each other from the first auxiliary feeding end 5111 and the second auxiliary feeding end 5121 as ends, wherein in the same auxiliary dual coupling pole 50, the vector is marked with the first auxiliary feeding end 5111 as a starting point and the second auxiliary feeding end 5121 as an end point. Where |b|≤λ / 32, wherein the vector of the auxiliary dual coupling pole 50 intersects and is perpendicular to the target direction axis, so that when the radiation space 100 has a cylindrical shape within the corresponding detection distance range, the flatness of the bottom surface of the cylindrical shape is improved by setting the auxiliary dual coupling pole 50, specifically corresponding to Figure 7B The radiation space 100 shown in FIG. Figure 6B The comparison of the radiation space 100 is shown, wherein Figure 7B The radiation space 100 is shown to have a reduced concavity in the direction opposite to the Z-axis direction.

[0122] It is worth mentioning that in this variant embodiment of the present invention, the electromagnetic reflection surface 20 is set to be circular, which is different from Fig. 6A The square electromagnetic reflective surface 20 is shown, wherein the electromagnetic reflective surface 20 is preferably located at any of the vectors The dimension in the direction of the electromagnetic reflection surface 20 is greater than or equal to λ / 4. On this basis, the specific shape of the electromagnetic reflection surface 20 does not constitute a limitation to the present invention.

[0123] Referring to the accompanying drawings of the present invention Fig. 8A and Figure 8B As shown, the structure and radiation pattern of the microwave detection module with extended beam angle according to another embodiment of the present invention are respectively illustrated. In this embodiment of the present invention, the end of each first feed line 31 away from the first feeding terminal 1111 is close to each other around the target direction axis, and the end of each second feed line 32 away from the second feeding terminal 1121 is close to each other around the target direction axis. This is conducive to feeding each of the dual coupled poles 10 by a feed source design and a feeding circuit design with in-phase feeding using the same feed source, by concentrating the feeding of the end of each first feed line 31 away from the first feeding terminal 1111 and the end of the second feed line 32 away from the second feeding terminal 1121, thereby simplifying the feeding design of the microwave detection module with extended beam angle.

[0124] It can be understood that when the same feed source is used to feed each of the dual coupled poles 10 with the same phase feeding circuit design, the phase difference between the relative dual coupled poles 10 and the corresponding two vectors That is to say, in this embodiment of the present invention, when the same feed source is used to feed each of the dual coupling poles 10 using a feeding circuit design with in-phase feeding, the physical arrangement of each of the dual coupling poles 10 satisfies: the two vectors of at least one pair of the dual coupling poles 10 are opposite to each other. In this way, based on the feeding design in which each of the dual-coupled poles 10 is fed at the same phase point, the physical arrangement of the dual-coupled poles 10 can satisfy the requirement that at least one pair of the dual-coupled poles 10 has a phase difference of more than 90 degrees and stretch the radiation space 100 in the corresponding two relative radial directions of the target direction axis.

[0125] Specifically, in this embodiment of the present invention, in a state where each of the radiation source electrodes 11 is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source electrode 111 and the second radiation source electrode 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them, thereby forming the radiation space 100 stretched in each radial direction of the target direction axis, and correspondingly improving the plane beam angle of the radiation space 100 in each radial direction of the target direction axis.

[0126] For example, in this embodiment of the present invention, the number of the dual coupling poles 10 is four, and the number of the corresponding radiation source poles 11 is eight, wherein in the state where the eight radiation source poles 11 are arranged around the target direction axis along the circumferential direction of the target direction axis, and the first radiation source pole 111 and the second radiation source pole 112 are arranged alternately around the target direction axis, the physical arrangement of each of the dual coupling poles 10 further satisfies the two vectors of any relative pair of the dual coupling poles 10 There is an angle of 180 degrees between them, such as Fig. 8A The two vectors of the two dual coupling poles 10 located in the target direction axis in two opposite radial directions corresponding to the Y-axis direction and the reverse direction of the Y-axis There is an angle of 180 degrees between them.

[0127] Referring to the accompanying drawings of the present invention Fig.9A and Fig. 9B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to another embodiment of the present invention are respectively illustrated. In this embodiment of the present invention, the end of each of the first feed lines 31 away from the first feeding terminal 1111 is collected into one end, and the end of each of the second feed lines 32 away from the second feeding terminal 1121 is close to each other around the target direction axis, so as to facilitate feeding the end of each of the first feed lines 31 away from the first feeding terminal 1111 and the end of the second feed line 32 away from the second feeding terminal 1121 by collecting and feeding, so as to realize feeding each of the dual coupled poles 10 with a feed source design and a feeding circuit design with in-phase feeding using the same feed source, thereby facilitating the feeding design of the microwave detection module with an extended beam angle.

[0128] Specifically, in this embodiment of the present invention, in a state where each of the radiation source electrodes 11 is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source electrode 111 and the second radiation source electrode 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them, thereby forming the radiation space 100 stretched in each radial direction of the target direction axis, and correspondingly improving the plane beam angle of the radiation space 100 in each radial direction of the target direction axis.

[0129] Further reference is made to the accompanying drawings of the present invention. Fig. 10A and Fig. 10B As shown, the structure and radiation pattern of the microwave detection module with extended beam angle according to another embodiment of the present invention are respectively illustrated. In this embodiment of the present invention, the ends of each of the first feed lines 31 away from the first feeding terminal 1111 are gathered into one end, and the ends of each of the second feed lines 32 away from the second feeding terminal 1121 are close to each other around the target direction axis, so as to facilitate feeding each of the dual coupled poles 10 with a feed source design and a feeding circuit design with in-phase feeding using the same feed source, thereby facilitating the feeding design of the microwave detection module with extended beam angle.

[0130] Specifically, in this embodiment of the present invention, when each of the radiation source poles 11 is arranged around the target direction axis along the circumferential direction of the target direction axis, the first radiation source pole 111 and the second radiation source pole 112 are alternately arranged around the target direction axis, and the end of the first radiation source pole 111 of the dual coupling pole 10 away from the first feeding end 1111 is integrally connected to the end of the second radiation source pole 112 of the adjacent dual coupling pole 10 away from the second feeding end 1121, so as to balance the electric field coupling energy of each of the dual coupling poles 10 and suppress the generation of electromagnetic radiation in the reverse direction of the target detection direction by the microwave detection module with an extended beam angle, while improving the structural stability of the microwave detection module with an extended beam angle.

[0131] It can be understood that in some embodiments of the present invention, the ends of each of the first feed lines 31 away from the first feeding terminal 1111 are close to each other around the target direction axis, and the ends of each of the second feed lines 32 away from the second feeding terminal 1121 are gathered into one end, which is also beneficial to feed each of the dual coupled poles 10 with the same feed source and the feeding circuit design with the same phase feeding, thereby simplifying the feeding design of the microwave detection module with extended beam angle.

[0132] Referring to the accompanying drawings of the present invention Fig.11A and Fig. 11BAs shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to another embodiment of the present invention are respectively illustrated. In this embodiment of the present invention, the end of each first feed line 31 away from the first feeding end 1111 is close to each other around the target direction axis, and the end of each second feed line 32 away from the second feeding end 1121 is close to each other around the target direction axis, wherein the first feed line 31 and the second feed line 32 of each pair of coupled poles 10 are bent and arranged, so that based on the bending of the first feed line 31 and the second feed line 32, while reducing the size of the microwave detection module with an extended beam angle and adjusting the shape of the radiation space 100 to improve the adaptability of the microwave detection module with an extended beam angle, the line length parameter L1 of the first feed line 31 and the line length parameter L2 of the second feed line 32 are maintained so that each pair of coupled poles 10 can meet the corresponding impedance matching.

[0133] Similarly, in this embodiment of the present invention, in a state where each of the radiation source electrodes 11 is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source electrode 111 and the second radiation source electrode 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them.

[0134] Further reference is made to the accompanying drawings of the present invention. Fig. 12A and Fig. 12B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to another embodiment of the present invention are respectively shown. Fig.11A On the basis of the structure of the microwave detection module with an extended beam angle in the above-mentioned embodiment, in this embodiment of the present invention, the end of the first radiation source pole 111 of the dual coupling pole 10 away from the first feeding end 1111 is integrally connected to the end of the second radiation source pole 112 of the adjacent dual coupling pole 10 away from the second feeding end 1121, so as to balance the electric field coupling energy of each dual coupling pole 10 and suppress the generation of electromagnetic radiation of the microwave detection module with an extended beam angle in the reverse direction of the target detection direction, while improving the structural stability of the microwave detection module with an extended beam angle.

[0135] Referring to the accompanying drawings of the present invention Fig.13A and Fig. 14BAs shown, the structure and radiation pattern of the microwave detection module with extended beam angle according to the other two embodiments of the present invention are respectively illustrated, wherein in these two embodiments of the present invention, the end of each of the first feed lines 31 away from the first feeding end 1111 is close to each other around the target direction axis, the end of each of the second feed lines 32 away from the second feeding end 1121 is close to each other around the target direction axis, and the first radiation source pole 111 and the second radiation source pole 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them.

[0136] In particular, in the two embodiments of the present invention, the radiation source pole 11 of each of the dual coupling poles 10 is bent to adjust the shape of the radiation space 100 accordingly to improve the adaptability of the microwave detection module with an extended beam angle.

[0137] Further reference is made to the accompanying drawings of the present invention. Fig.15A and Fig. 15B As shown, the structure and radiation pattern of the microwave detection module with extended beam angle according to another embodiment of the present invention are respectively illustrated, wherein in this embodiment of the present invention, the end of the first radiation source pole 111 of each of the dual coupled poles 10 away from the first feeding end 1111 is integrally connected to the end of the second radiation source pole 112 away from the second feeding end 1121, so as to form a state in which the first radiation source pole 111 of each of the dual coupled poles 10 is electrically connected to the second radiation source pole 112, thereby reducing the impedance of the dual coupled pole 10 and facilitating improving the anti-interference performance of the microwave detection module with extended beam angle by improving the quality factor of the dual coupled pole 10.

[0138] Referring to the accompanying drawings of the present invention Fig.16A and Fig. 16B As shown, the structure and radiation pattern of the microwave detection module with an extended beam angle according to another embodiment of the present invention are respectively illustrated, wherein in this embodiment of the present invention, the number of the dual coupling poles 10 is five, wherein in a state where each of the radiation source poles 11 is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source pole 111 and the second radiation source pole 112 are alternately arranged around the target direction axis, so that when the feeding circuit design of the same feed source adopts the same phase feeding to feed each of the dual coupling poles 10, the two vectors of any relative pair of the dual coupling poles 10 are There is an angle greater than 90 degrees between them.

[0139] Furthermore, in this embodiment of the present invention, one end of each of the first feed lines 31 away from the first feeding terminal 1111 is gathered into one end, and one end of each of the second feed lines 32 away from the second feeding terminal 1121 is close to each other around the target direction axis, so as to facilitate the feeding of each of the first feeding terminals 1111 through the corresponding first feed lines 31 and the feeding of each of the second feeding terminals 1121 through the corresponding second feed lines 32, and feed each of the dual coupled poles 10 with a feeding circuit design of in-phase feeding using the same feed source, which is conducive to simplifying the feeding circuit design of the microwave detection module with extended beam angle.

[0140] It is worth mentioning that based on the structural description of the microwave detection module with extended beam angle in the above embodiment, it can be seen that: on the basis of the physical arrangement and feeding design of the dual coupled poles 10 satisfying the phase difference greater than 90 degrees between at least one pair of the dual coupled poles 10, the number and shape settings of the dual coupled poles 10 and the corresponding physical arrangement and feeding design have multiple implementation methods. The embodiments of the present invention shown in the above description and the accompanying drawings are only for example and do not limit the present invention. The different embodiments or examples described in this specification and the features of different embodiments or examples can be combined and combined with each other without contradiction.

[0141] For example, referring to the accompanying drawings of the present invention, FIG. 17A to FIG. 20B As shown, the structures and radiation patterns of four microwave detection modules with extended beam angles of four embodiments according to different combinations of features in the above embodiments of the present invention are respectively illustrated, wherein in these four embodiments of the present invention, the microwave detection module with extended beam angle includes two orthogonal auxiliary dual coupling poles 50, wherein each of the auxiliary dual coupling poles 50 includes two auxiliary radiation source poles 51, wherein the two auxiliary radiation source poles 51 are divided into a first auxiliary radiation source pole 511 and a second auxiliary radiation source pole 512 according to their polarity in the corresponding feeding design, wherein the first auxiliary radiation source pole 511 has a first auxiliary feeding end 5111 and is configured as a conductor extending with the first auxiliary feeding end 5111 as an end, wherein the second auxiliary radiation source pole 512 has a second auxiliary feeding end 5121 and is configured as a conductor extending with the second auxiliary feeding end 5121 as an end, wherein in the same auxiliary dual coupling pole 50, the vectors are marked with the first auxiliary feeding end 5111 as the starting point and the second auxiliary feeding end 5121 as the end point. Where |b|≤λ / 32, where the two vectors of the two auxiliary dual coupling poles 50 The auxiliary dual coupling poles 50 are perpendicular to each other and intersect the target direction axis respectively, so as to form an orthogonal relationship between the two auxiliary dual coupling poles 50, and when the radiation space 100 has a cylindrical shape within the corresponding detection distance range, the electromagnetic radiation of the auxiliary dual coupling poles 50 along the target direction axis improves the flatness of the bottom surface of the cylindrical shape, specifically corresponding to Fig. 17B , Fig.18B , Fig.19B as well as Fig. 20B The radiation space 100 shown in FIG. Fig. 9B , Fig. 10B , Fig. 11B as well as Fig. 12B The radiation space 100 is shown in FIG. Fig. 17B , Fig.18B , Fig.19B as well as Fig. 20B The radiation space 100 is shown to have a reduced concavity in the direction opposite to the Z-axis direction.

[0142] Further, one end of each of the first feed lines 31 away from the first feeding end 1111 and the first auxiliary feeding end 5111 of the first auxiliary radiation source 511 are converged into one end, and one end of each of the second feed lines 32 away from the second feeding end 1121 and the second feeding end 5121 of the second auxiliary radiation source 512 are converged at a narrow end of a cone 40 around the target direction axis, wherein in a state where each of the radiation sources 11 is arranged along the circumferential direction of the target direction axis around the target direction axis, the first radiation source 111 and the second radiation source 112 are alternately arranged around the target direction axis.

[0143] In particular, compared to Fig.17A and Fig.19A The corresponding embodiment, in Fig.18A and Fig. 20A In the corresponding embodiment, the end of the first radiation source pole 111 of the dual coupling pole 10 away from the first feeding end 1111 is integrally connected to the end of the second radiation source pole 112 of the adjacent dual coupling pole 10 away from the second feeding end 1121, so as to improve the structural stability of the microwave detection module with extended beam angle by integrating each of the dual coupling poles 10 and the auxiliary dual coupling poles 50 as well as each of the first feeding lines 31 and each of the second feeding lines 32.

[0144] Furthermore, compared to Fig.17A and Fig.18A The corresponding embodiment, in Fig.19A and Fig. 20AIn the corresponding embodiment, the first feeder 31 and the second feeder 32 of each of the dual coupling poles 10 are further bent, so that on the basis of the structure of integrating each of the dual coupling poles 10 and the auxiliary dual coupling poles 50 and each of the first feeder 31 and each of the second feeder 32, by bending the first feeder 31 and the second feeder 32, the line length parameter L1 of the first feeder 31 and the line length parameter L2 of the second feeder 32 are maintained so that each of the dual coupling poles 10 can meet the corresponding impedance matching.

[0145] It can be understood that, in the description of the above embodiments of the present invention, the two radiation source electrodes 11 of the dual coupling pole 10 are distinguished by their polarity in the corresponding feeding design as a first radiation source electrode 111 and a second radiation source electrode 112, wherein the polarity distinction of the radiation source electrode 11 does not constitute a limitation to the present invention, that is, in the description of the above embodiments of the present invention, the description of the first radiation source electrode 111 and the second radiation source electrode 112 does not constitute a limitation to specific polarities.

[0146] Further reference is made to the accompanying drawings of the present invention. Fig.21 As shown, a scenario in which the microwave detection module with an extended beam angle according to one of the above embodiments of the present invention is applied to vertical detection is illustrated, wherein in a vertical detection application with a human body as the target detection object, the target detection space 200 corresponds to the activity space of the target human body on the corresponding target detection surface, and a reasonable target detection space 200 can be selected as the activity space of the target human body within the vertical projection surface of the radiation space 100. Wherein, on the basis that the physical arrangement and feeding design of the dual coupling poles 10 satisfy the phase difference greater than 90 degrees between at least one pair of the dual coupling poles 10, the radiation space 100 can be stretched in the corresponding two relative radial directions of the target direction axis, and the plane beam angle of the radiation space 100 in the corresponding two relative radial directions of the target direction axis is correspondingly improved, so that the radiation space 100 has a cylindrical shape within the corresponding detection distance range, wherein the radiation space 100 has a cylindrical shape within the corresponding detection distance range, and when the microwave detection module with an extended beam angle is applied to the directional detection of human activities, it is allowed to form a state corresponding to the target detection space 200 and the above-mentioned detection distance range by adjusting the installation position of the microwave detection module with an extended beam angle, which correspondingly improves the coverage rate of the actual detection space to the target detection space 200, which is beneficial to improving the detection accuracy of the microwave detection module with an extended beam angle, and at the same time, it also increases the space share of the target detection space 200 in the actual detection space, which is beneficial to improving the anti-interference performance of the microwave detection module with an extended beam angle.

[0147] Furthermore, based on the comparison of the corresponding radiation pattern of the microwave detection module with extended beam angle in the above embodiments, it can be known that: when the plane beam angle of the radiation space is increased, the above-mentioned detection distance range corresponding to the cylindrical part of the radiation space is increased, which correspondingly improves the adaptability of the microwave detection module with extended beam angle to the target detection space 200 with different detection distance range requirements.

[0148] Specifically, on the basis that the physical arrangement and feeding design of the dual coupled poles 10 satisfy the phase difference greater than 90 degrees between at least one pair of the dual coupled poles 10, the microwave detection module with an extended beam angle has a plane beam angle greater than or equal to 90 degrees, and the microwave detection module corresponding to the extended beam angle has a cylindrical shape within a detection distance range of 4 meters and has good adaptability to the target detection space 200 with a detection distance range of less than 4 meters. Since the target detection space 200 with a detection distance range of less than 4 meters is mostly required in actual applications, the microwave detection module with an extended beam angle has good adaptability to the target detection space 200 in actual applications.

[0149] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0150] It should be understood by those skilled in the art that the embodiments of the present invention described above and shown in the accompanying drawings are only examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and the embodiments of the present invention may be deformed or modified in any way without departing from the principles.

Claims

1. A microwave detection module with an extended beam angle, characterized in that: include: At least three dual coupled poles, wherein each of the dual coupled poles comprises two radiation source poles, wherein the two radiation source poles are divided into a first radiation source pole and a second radiation source pole according to their polarity in the corresponding feeding design, wherein the first radiation source pole has a first feeding end and is configured as a conductor extending with the first feeding end as an end, wherein the second radiation source pole has a second feeding end and is configured as a conductor extending with the second feeding end as an end, wherein the first radiation source pole and the second radiation source pole of the same dual coupled pole extend in a direction away from each other with the first feeding end and the second feeding end as ends respectively and have a line length greater than or equal to λ / 16 respectively, wherein λ is a wavelength parameter corresponding to the feeding frequency, wherein in the same dual coupled pole, the vectors are marked with the first feeding end as the starting point and the second feeding end as the end point where |a|≤λ / 32; and An electromagnetic reflection surface, wherein the electromagnetic reflection surface is formed on the surface of a conductive plate, wherein each of the dual coupling poles is spaced from the electromagnetic reflection surface in a space corresponding to the electromagnetic reflection surface, wherein the direction from the electromagnetic reflection surface to the dual coupling poles is the target detection direction of the microwave detection module with the extended beam angle, wherein each of the radiation source poles is arranged around a target direction axis pointing to the target detection direction, wherein two of the dual coupling poles respectively located in two opposite radial directions of the target direction axis are a pair of opposite dual coupling poles, wherein at least one pair of opposite dual coupling poles has a phase difference greater than 90 degrees when being fed.

2. The microwave detection module with extended beam angle according to claim 1, wherein the microwave detection module with extended beam angle further comprises a number of first feed lines corresponding to the number of the first feed ends and a number of second feed lines corresponding to the number of the second feed ends, wherein a line length parameter L1 of the first feed line and a line length parameter L2 of the second feed line respectively satisfy: λ / 8≤L1≤λ / 2 and λ / 8≤L2≤λ / 2, wherein the first feed line and the second feed line are electrically connected to the first feed end and the second feed end, respectively.

3. A microwave detection module with an extended beam angle according to claim 2, wherein each of the first radiation source poles is arranged radially around the target direction axis along the radial direction of the target direction axis with the first feeding end close to the target direction axis, and each of the second radiation source poles is arranged radially around the target direction axis along the radial direction of the target direction axis with the second feeding end close to the target direction axis.

4. The microwave detection module with extended beam angle according to claim 3, wherein the two vectors of at least one pair of opposite coupled poles are There is an angle greater than 90 degrees between them. 5 . The microwave detection module with extended beam angle according to claim 4 , wherein the number of the dual coupling poles is an odd number, and wherein the first radiation source poles and the second radiation source poles are alternately arranged around the target direction axis. 6 . The microwave detection module with extended beam angle according to claim 5 , wherein the first feeding ends of the first radiation source electrodes are gathered into one end, or the second feeding ends of the second radiation source electrodes are gathered into one end. 7 . The microwave detection module with extended beam angle according to claim 6 , wherein each of the first feeding line and the second feeding line is parallel to each other.

8. The microwave detection module with an extended beam angle according to claim 2, wherein at least one pair of the dual coupling poles are arranged along the radial direction of the target direction axis in a state where the end of the first radiation source pole away from the first feeding end is close to the target direction axis, so as to form two vectors of the pair of the dual coupling poles. A state in which the angle between them is greater than 90 degrees.

9. The microwave detection module with an extended beam angle according to claim 8, wherein each of the dual coupled poles is arranged radially around the target direction axis along the radial direction of the target direction axis in a state where the end of the first radiation source pole away from the first feeding end is close to the target direction axis, and the vectors corresponding to each of the dual coupled poles are The two vectors of any pair of the dual coupling poles are formed in a state where the radial direction of the target direction axis is directed around the target direction axis. A state having an angle greater than 90 degrees. 10 . The microwave detection module with extended beam angle according to claim 2 , wherein the radiation sources are arranged around the target direction axis along a circumferential direction of the target direction axis.

11. The microwave detection module with an extended beam angle according to claim 10, wherein in a state where each of the radiation source poles is arranged around the target direction axis along the circumferential direction of the target direction axis, the first radiation source pole and the second radiation source pole are alternately arranged around the target direction axis.

12. The microwave detection module with extended beam angle according to claim 11, wherein the end of the first radiation source of the dual coupled pole away from the first feeding end is integrally connected to the end of the second radiation source of the adjacent dual coupled pole away from the second feeding end.

13. The microwave detection module with extended beam angle according to claim 12, wherein the vector It satisfies 0.9λ / 128≤|a|≤1.1λ / 128. 14 . The microwave detection module with extended beam angle according to claim 13 , wherein the radiation source pole of each pair of coupled poles is bent. 15 . The microwave detection module with extended beam angle according to claim 10 , wherein ends of the first feeding lines away from the first feeding end are combined into one end. 16 . The microwave detection module with extended beam angle according to claim 15 , wherein an end of each of the second feeding lines away from the second feeding end converges at a narrow end of a cone.

17. The microwave detection module with an extended beam angle according to claim 16, wherein the microwave detection module with an extended beam angle further comprises at least one auxiliary dual coupling pole, wherein the auxiliary dual coupling pole comprises two auxiliary radiation source poles, wherein the two auxiliary radiation source poles are divided into a first auxiliary radiation source pole and a second auxiliary radiation source pole according to their polarities in the corresponding feeding design, wherein the first auxiliary radiation source pole has a first auxiliary feeding end and is configured as a conductor extending with the first auxiliary feeding end as an end, wherein the second auxiliary radiation source pole has a second auxiliary feeding end and is configured as a conductor extending with the second auxiliary feeding end as an end, wherein the first auxiliary radiation source pole and the second auxiliary radiation source pole of the same auxiliary dual coupling pole extend in a direction away from each other with the first auxiliary feeding end and the second auxiliary feeding end as ends, respectively, wherein in the same auxiliary dual coupling pole, a vector is marked with the first auxiliary feeding end as a starting point and the second auxiliary feeding end as an end point. Where |b|≤λ / 32, where the vector of the auxiliary dual coupling pole Intersecting and perpendicular to the target direction axis.

18. The microwave detection module with extended beam angle according to claim 17, wherein the number of the auxiliary dual coupling poles is two, wherein the two vectors of the two auxiliary dual coupling poles are They intersect the target direction axis perpendicularly in a mutually perpendicular state to form an orthogonal relationship between the two auxiliary dual coupling poles.

19. According to the microwave detection module with extended beam angle of claim 18, one end of each of the first feed lines away from the first feeding end and the first auxiliary feeding end of the first auxiliary radiation source are converged into one end, and one end of each of the second feed lines away from the second feeding end and the second feeding end of the second auxiliary radiation source are converged at the narrow end of the conical tube around the target direction axis. 20 . The microwave detection module with extended beam angle according to claim 19 , wherein the first feeding line and the second feeding line of each pair of coupled poles are bent.

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