Antenna feeder design method and device, medium and computing equipment

Abstract

The invention discloses an antenna feeder design method and device, a medium and computing equipment, and the method comprises the steps: constructing a series-parallel antenna feeder circuit based on a transmitting antenna model and a preset connection rule; the series-parallel antenna feeder circuit comprises a load resistor to be tested and an impedance matching resistor to be tested; determining the resistance value of the load resistor to be measured based on the antenna power capacity of the transmitting antenna and the balance principle; based on the resistance value of the to-be-tested load resistor and the impedance matching principle, determining the resistance value of the to-be-tested impedance matching resistor; and obtaining an application antenna feeder circuit based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured. The invention aims to solve the technical problem that the impedance between the existing antenna feeder and the transmitting antenna is not matched.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to an antenna feed line design method, device, medium and computing equipment. Background Art

[0002] The antenna feed line refers to the electrical signal energy transmission line connecting the transmitting antenna and the transceiver, which is used to transmit the RF signal generated by the transceiver to the transmitting antenna, or to transmit the RF signal received by the transmitting antenna to the transceiver.

[0003] At present, when constructing a high-power antenna feeder circuit, the high-power capacity of the feeder can be ensured by connecting equal-value large resistors in series. However, directly connecting impedances in series will lead to feeder impedance mismatch (because the series impedance will change the total impedance of the feeder), which in turn will lead to impedance mismatch between the antenna feeder and the transmitting antenna, making it impossible to achieve optimal impedance matching and power transmission between the antenna feeder and the transmitting antenna. Summary of the invention

[0004] The main purpose of this application is to provide an antenna feed line design method, device, medium and computing equipment, aiming to solve the technical problem of impedance mismatch between the existing antenna feed line and the transmitting antenna.

[0005] To achieve the above-mentioned purpose, the present application provides a series-parallel antenna feeder circuit constructed based on a transmitting antenna model and a preset connection rule; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; based on the antenna power capacity of the transmitting antenna and the balance principle, the resistance value of the load resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the impedance matching principle, the resistance value of the impedance matching resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured, the application antenna feeder circuit is obtained.

[0006] Optionally, the series-parallel antenna feeder circuit also includes a first group of ports, a second group of ports and a third group of ports; the load resistor to be measured includes a first load resistor and a second load resistor; wherein, one end of the first load resistor is connected to the first group of ports, and the first group of ports is connected to the transmitter coaxial cable port; the other end of the first load resistor is connected to the second group of ports, and the second group of ports is connected to the antenna port; one end of the second load resistor is connected to the first group of ports; the other end of the second load resistor is connected to the third group of ports, and the third group of ports is connected to the antenna port; the first load resistor is connected to the second load resistor in series, and the impedance matching resistor to be measured is connected in parallel with the first load resistor and the second load resistor.

[0007] Optionally, the first group of ports includes port A1 and port A2, the port A1 is connected to the inner conductor of the transmitter coaxial cable, and the port A2 is connected to the outer conductor of the transmitter coaxial cable; the second group of ports includes port B1 and port B2, the port B1 is connected to the antenna element at one end of the antenna, and the port B2 is connected to the feeder packaging shell; the third group of ports includes port C1 and port C2, the port C1 is connected to the antenna element at the other end of the antenna and is opposite to the connection end of the port B1, and the port C2 is connected to the feeder packaging shell.

[0008] Optionally, determining the resistance value of the load resistor to be measured based on the antenna power capacity and the principle of balance includes: based on the principle of balance, the resistance value of the first load resistor is equal to the resistance value of the second load resistor; based on the resistance value of the first load resistor being equal to the resistance value of the second load resistor, the first load resistor and the second load resistor being connected in series, and the antenna power capacity, determining the resistance value of the first load resistor and the resistance value of the second load resistor.

[0009] Optionally, determining the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle includes: establishing an impedance relationship between the characteristic impedance of the first group of ports, the first branch and the second branch based on the impedance matching principle and the characteristic impedance of the first group of ports obtained in advance; the first branch includes the impedance matching resistor to be measured, and the second branch includes the first load resistor and the second load resistor; based on the pre-acquired antenna center frequency, determining the first input impedance of the first branch; based on the pre-acquired second feeder length of the second branch, determining the second input impedance of the second branch; and obtaining the resistance value of the impedance matching resistor to be measured based on the impedance relationship, the first input impedance and the second input impedance.

[0010] Optionally, obtaining the resistance value of the impedance matching resistor to be measured based on the impedance relationship, the first input impedance and the second input impedance includes: establishing a first correlation formula and a second correlation formula based on the impedance relationship, the first input impedance and the second input impedance; obtaining the first feeder length of the first branch based on the first correlation formula and the second correlation formula; obtaining the resistance value of the impedance matching resistor to be measured based on the first feeder length and the first correlation formula or the second correlation formula.

[0011] Optionally, the phase difference of the transmitter coaxial cable connected to the first group of ports in the full frequency band is 180 degrees.

[0012] In addition, to achieve the above-mentioned purpose, the present application also provides an antenna feeder design device, which includes: a creation module, which is used to construct a series-parallel antenna feeder circuit based on the transmitting antenna model and preset connection rules; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; a first determination module, which is used to determine the resistance value of the load resistor to be measured based on the antenna power capacity and balance principle of the transmitting antenna; a second determination module, which is used to determine the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle; a third determination module, which is used to obtain the application antenna feeder circuit based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured.

[0013] In addition, the present application also provides a computer-readable storage medium, which includes instructions, and when the instructions are executed on a computer, the computer executes any one of the above methods.

[0014] In addition, the present application also provides a computing device, which includes: at least one processor, a memory and an input and output unit; wherein the memory is used to store a computer program, and the processor is used to call the computer program stored in the memory to execute any of the methods described above.

[0015] The present application proposes an antenna feeder design method, device, medium and computing equipment, which obtain a series-parallel antenna feeder circuit through a transmitting antenna model and a preset connection rule; obtain the resistance value of a load resistor to be measured and the resistance value of an impedance matching resistor to be measured in the series-parallel antenna feeder circuit by analyzing and calculating the series-parallel antenna feeder circuit; obtain an applied antenna feeder circuit through the known resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured; and configure the antenna feeder according to the applied antenna feeder circuit, which can effectively solve the impedance mismatch problem between the antenna feeder and the transmitting antenna in the prior art, and achieve better impedance matching and power transmission between the antenna feeder and the transmitting antenna. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a flow chart of an antenna feed line design method provided in one embodiment of the present application;

[0017] Figure 2 for Figure 1 Schematic diagram of the structure of the series-parallel antenna feeder circuit Figure 1 ;

[0018] Figure 3 for Figure 1 Schematic diagram of the structure of the series-parallel antenna feeder circuit Figure 2 ;

[0019] Figure 4A schematic diagram of functional modules of an antenna feed line design device provided in one embodiment of the present application;

[0020] Figure 5 A schematic diagram of the structure of a medium provided in one embodiment of the present application;

[0021] Figure 6 A schematic diagram of the structure of a computing device provided in one embodiment of the present application.

[0022] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application. On the contrary, these embodiments are provided to make the present disclosure more thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art.

[0024] Those skilled in the art know that the embodiments of the present application can be implemented as a system, device, equipment, method or computer program product. Therefore, the present application can be specifically implemented in the following forms, namely: complete hardware, complete software (including firmware, resident software, microcode, etc.), or a combination of hardware and software.

[0025] Antenna feeder refers to the electrical signal energy transmission line connecting the transmitting antenna and the transceiver, which is used to transmit the RF signal generated by the transceiver to the transmitting antenna, or transmit the RF signal received by the transmitting antenna to the transceiver. The antenna feeder is required to have good impedance matching with the transmitting antenna, small transmission loss, small radiation effect, and sufficient bandwidth and power capacity.

[0026] In the prior art, when constructing a high-power antenna feeder circuit, the high-power capacity and symmetry of the feeder can be ensured by connecting equal-value large resistors in series. However, directly connecting impedances in series will lead to feeder impedance mismatch (because the series impedance will change the total impedance of the feeder), which will in turn lead to impedance mismatch between the antenna feeder and the transmitting antenna, making it impossible to achieve optimal impedance matching and power transmission between the antenna feeder and the transmitting antenna.

[0027] The main solution of the embodiment of the present application is: based on the transmitting antenna model and the preset connection rules, a series-parallel antenna feeder circuit is constructed; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; based on the antenna power capacity of the transmitting antenna and the balance principle, the resistance value of the load resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the impedance matching principle, the resistance value of the impedance matching resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured, the application antenna feeder circuit is obtained.

[0028] The present application provides a solution, which obtains a series-parallel antenna feeder circuit through a transmitting antenna model and a preset connection rule; obtains the resistance value of a load resistor to be measured and the resistance value of an impedance matching resistor to be measured in the series-parallel antenna feeder circuit by analyzing and calculating the series-parallel antenna feeder circuit, obtains an application antenna feeder circuit through the known resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured, and configures the antenna feeder according to the application antenna feeder circuit, which can effectively solve the impedance mismatch problem between the antenna feeder and the transmitting antenna in the prior art, and achieve better impedance matching and power transmission between the antenna feeder and the transmitting antenna.

[0029] It should be noted that any number of elements in the drawings is for illustration rather than limitation, and any naming is only for distinction and does not have any limiting meaning.

[0030] The principles of the present application are explained in detail below with reference to several representative implementations of the present application.

[0031] Reference Figure 1 , an antenna feed line design method provided by an embodiment of the present application, the antenna feed line design method comprising:

[0032] Step S110, constructing a series-parallel antenna feeder circuit based on the transmitting antenna model and preset connection rules.

[0033] In the example embodiment, the antenna power capacity refers to the maximum capacity of the electromagnetic wave power that the transmitting antenna can transmit and receive. The antenna power capacity is closely related to the parameters such as the gain, frequency band and power of the transmitting antenna, and its size depends on factors such as the physical size, operating frequency band and transmitting power of the transmitting antenna. For example, compared with a low-frequency transmitting antenna, a high-frequency transmitting antenna has a stronger power tolerance under the same working conditions. The antenna feeder connects the antenna and the transceiver, and is used to transmit the radio frequency signal generated by the transceiver to the transmitting antenna, or to transmit the radio frequency signal received by the transmitting antenna to the transceiver. Therefore, in order to ensure that the antenna feeder matches the power of the transmitting antenna during transmission, when designing the series-parallel antenna feeder circuit, the power capacity of the antenna feeder is set according to the power of the transmitting antenna that needs to be matched.

[0034] The preset connection rule is to connect resistors of the same load in series and connect an impedance resistor in parallel to the series connection to ensure the feeder power capacity and symmetry.

[0035] refer to Figure 2, the above-mentioned series-parallel antenna feeder circuit includes a load resistor to be measured, an impedance matching resistor to be measured, a first group of ports A, a second group of ports B and a third group of ports C. Among them, the first group of ports A includes ports A1 and A2, port A1 is connected to the inner conductor of the transmitter coaxial cable, and port A2 is connected to the outer conductor of the transmitter coaxial cable; the second group of ports B includes ports B1 and B2, port B1 is connected to the antenna element at one end of the antenna, and port B2 is connected to the feeder packaging shell; the third group of ports C includes ports C1 and C2, port C1 is connected to the antenna element at the other end of the antenna and is opposite to the connection end of port B1, and port C2 is connected to the feeder packaging shell. The load resistor to be measured includes a first load resistor R1 and a second load resistor R2, one end of the first load resistor R1 is connected to port B1 and the other end is connected to port A2, and one end of the second load resistor R2 is connected to port A2 and the other end is connected to port C1. One end of the impedance matching resistor R3 to be measured is connected in series with the first load resistor R1 and the first load resistor R1 is connected to the second load resistor R2. One end of the impedance matching resistor R3 to be measured is connected to the first load resistor R1 and the other end is connected to the second load resistor R2. The impedance matching resistor R3 to be measured is connected in parallel with the first load resistor R1 and the second load resistor R2.

[0036] In addition, the phase difference of the transmitter coaxial cable connected to the first group of ports in the left and right full frequency band is 180 degrees.

[0037] Combination Figure 2 It is understandable that in actual use, the transmitter forward current enters from port A1 and is divided into two paths at D1, one flowing to the antenna element at one end of the antenna and the other flowing to the antenna element at the other end of the antenna. Since port B1 and port C1 are connected to the two ends of D1, the currents flowing through port B1 and port C1 are in opposite directions, so the phase difference of the transmitter coaxial cable is 180 degrees.

[0038] Step S120: determining the resistance value of the load resistor to be measured based on the antenna power capacity and the balance principle of the transmitting antenna.

[0039] In the exemplary embodiment, the balance principle is that the impedance of both ends of the antenna feeder connecting the first group of ports and the second group of ports in the series-parallel antenna feeder circuit is balanced. That is, the resistance value of the first load resistor and the resistance value of the second load resistor in the series-parallel antenna feeder circuit are equal.

[0040] In a specific embodiment, the above step S120 may include: based on the principle of balance, the resistance value of the first load resistor is equal to the resistance value of the second load resistor; based on the resistance value of the first load resistor being equal to the resistance value of the second load resistor, the first load resistor and the second load resistor being connected in series, and the antenna power capacity, determining the resistance value of the first load resistor and the second load resistor.

[0041] In combination with the above embodiment, according to the balance principle, the resistance value of the first load resistor R1 and the resistance value of the second load resistor R2 in the series-parallel antenna feeder circuit are equal, that is, R1=R2.

[0042] Since the first load resistor R1 is connected in series with the second load resistor R2, the voltage of the first load resistor R1 is the same as that of the second load resistor R2. In the embodiment of the present application, the power capacity mainly depends on the maximum allowable current and the maximum allowable voltage of the antenna feeder, and the current I is the rated input current of the antenna line. The antenna power capacity P has been determined when designing the transmitting antenna. Therefore, R1 = R2 = P / I 2 .

[0043] Step S130, determining the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle.

[0044] In the example embodiment, the impedance matching principle is mainly related to the maximization of energy transfer in the circuit. When the load impedance and the internal impedance of the excitation source are adapted to each other, the antenna feed line can achieve maximum power output, which is the working state of impedance matching. In a pure resistance circuit, when the load resistance is equal to the internal resistance of the excitation source, the output power reaches the maximum, which is called matching, otherwise it is called mismatching. When the internal impedance of the excitation source and the load impedance contain reactance components, in order for the load to obtain the maximum power, the two must satisfy a conjugate relationship, that is, the resistance components are equal, and the reactance components are only equal in value but opposite in sign. This matching condition is called conjugate matching. In this embodiment, in order to comply with the impedance matching principle, an impedance matching resistor R3 is connected in parallel so that the characteristic impedance of the feed line is equal to the characteristic impedance of the transmitter coaxial cable.

[0045] It should be noted that the impedance matching in the embodiments of the present application can also be referred to as the same impedance. That is, generally when the antenna transmission system is working, the characteristic impedance of the transmitter coaxial cable is 50Ω, but the characteristic impedance of the feeder is not certain. If the characteristic impedance of the feeder does not match the characteristic impedance of the coaxial cable, the transmitted energy will be reflected at the connection between the feeder and the coaxial cable, causing energy loss, and in severe cases, damaging the transmitter. Only when the impedance of the feeder and the coaxial cable is matched, the energy propagation here will not produce reflection, thereby improving the transmission efficiency and protecting the entire antenna transmission system.

[0046] In a specific embodiment, the above step S130 may include:

[0047] Step S1301: Based on the impedance matching principle and the pre-acquired characteristic impedance of the first group of ports, an impedance relationship between the characteristic impedance of the first group of ports and the first branch and the second branch is established.

[0048] In an exemplary embodiment, according to Figure 2 The equivalent of the series-parallel antenna feeder circuit is obtained Figure 3 ,according to Figure 3 As shown, one end of the impedance matching resistor R3 to be measured is connected to one end of the first load resistor R1 close to the first group port PortA, and the other end is connected to one end of the second load resistor R2 close to the first group port PortA; the line where the impedance matching resistor R3 to be measured is the first branch. One end of the first load resistor R1 is connected to the first group port PortA, and the other end is connected to the second group port PortB; one end of the second load resistor R2 is connected to the first group port PortA, and the other end is connected to the third group port PortC; the line where the second group port PortB and the third group port PortC are located is the second branch, and the second branch is an open circuit.

[0049] According to the impedance matching principle, the impedance relationship (1) between the first group of ports PortA, the first branch and the second branch is established as follows:

[0050]

[0051] Among them, since the impedances of the transmitter coaxial cable and the transmitting antenna connected to both ends of the feeder are pure real numbers, such as 50Ω, in order to match the impedances of the feeder with the two, the characteristic impedance Z0 of the feeder should also be a pure real number, such as 50Ω; Z i1 is the input impedance of the first branch; Z i2 is the input impedance of the second branch.

[0052] Step S1302: determining a first input impedance of the first branch based on the pre-acquired antenna center frequency.

[0053] In combination with the above embodiment, according to the pre-acquired antenna center frequency, and the conjugate matching of the first group of ports Port A, the first branch, and the second branch, the first input impedance Z of the first branch is obtained. i1 .

[0054] Specifically, according to the voltage and current distribution along the feeder line, we can obtain:

[0055]

[0056] Among them, I -l1 with U -l1 is the current and voltage value at the end of the first branch, I and U are the current and voltage value distribution on the first branch line. When calculating, I and U can be eliminated. Then extract Z0 to get;

[0057]

[0058] Where c in the above formula is the speed of light, which is 3×10 8m / s; f is the center frequency of the antenna; l1 is the length of the first branch. In order to facilitate calculation, formula (2) is split into a combination of real and imaginary parts, that is,

[0059]

[0060] Step S1303: determining a second input impedance of the second branch based on a pre-acquired second feeder length of the second branch.

[0061] In combination with the above embodiment, according to the known second feeder length of the second branch, and the second branch is open circuit, the second input impedance Z of the second branch is obtained. i2 ,Right now,

[0062]

[0063] Among them, l2 is the length of the second branch, which is determined according to the transmitting antenna model and space requirements and is determined during antenna design, and is generally 0.05m to 0.3m.

[0064] Step S1304: obtaining a resistance value of the impedance matching resistor to be measured based on the impedance relationship, the first input impedance, and the second input impedance.

[0065] It can be understood that, by combining the above formula (1), formula (3), and formula (4), the resistance value of the impedance matching resistor R3 to be measured is obtained. Further, in combination with the above embodiment, in order to ensure impedance matching, the above formula (1) needs to be equal on both sides. First, the real parts on the left and right sides of formula (1) are equal. Since the left side of the equal sign of formula (1) only contains the real part, formula (3) contains the real part and the imaginary part, and formula (4) does not contain the real part, the real part of formula (1) is equal to the real part of formula (3), and the first correlation formula is obtained, that is,

[0066]

[0067] In combination with the above embodiment, the imaginary parts on the left and right sides of formula (1) are ensured to be equal. Since the left side of the equal sign of formula (1) does not contain the imaginary part, formula (3) contains the real part and the imaginary part, and formula (4) only contains the imaginary part, the sum of the imaginary part of formula (3) and the imaginary part of formula (4) is set to zero, and the second correlation equation is obtained, that is,

[0068]

[0069] The combined formula (5) and formula (6) only contain two unknowns, R3 and l1. After solving l1, l1 can be substituted into formula (5) to obtain R3, or it can be substituted into any equation in formula (6) to obtain R3.

[0070] Step S140, obtaining an applied antenna feeder circuit based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured.

[0071] In combination with the above embodiment, through the above analysis of the series-parallel antenna feeder circuit, the resistance value of the first load resistor R1, the resistance value of the second load resistor R2, the resistance value of the impedance matching resistor R3 to be measured, and the antenna feeder length of the branch where the impedance matching resistor R3 to be measured are obtained in the series-parallel antenna feeder circuit, and the resistance value of the first load resistor R1, the resistance value of the second load resistor R2, the resistance value of the impedance matching resistor R3 to be measured, and the antenna feeder length of the branch where the impedance matching resistor R3 to be measured are marked to the series-parallel antenna feeder circuit to obtain the application antenna feeder circuit. The user can configure the antenna feeder according to the application antenna feeder circuit, which can effectively solve the problem of impedance mismatch between the transmitting antenna and the antenna feeder.

[0072] By implementing the above-mentioned steps S110 to S140, a series-parallel antenna feeder circuit is obtained through the transmitting antenna model and the preset connection rules; by analyzing and calculating the series-parallel antenna feeder circuit, the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured in the series-parallel antenna feeder circuit are obtained, and the application antenna feeder circuit is obtained through the known resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured. The antenna feeder is configured according to the application antenna feeder circuit, which can effectively solve the impedance mismatch problem between the antenna feeder and the transmitting antenna in the prior art, and achieve better impedance matching and power transmission between the antenna feeder and the transmitting antenna.

[0073] After introducing the method of the exemplary embodiment of the present application, next, refer to Figure 4 An antenna feed line design device according to an exemplary embodiment of the present application is described. The antenna feed line design device includes: a creation module 410, a first determination module 420, a second determination module 430, and a third determination module 440; wherein,

[0074] The creation module 410 is used to construct a series-parallel antenna feeder circuit based on the transmitting antenna model and the preset connection rule; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured;

[0075] The first determination module 420 is used to determine the resistance value of the load resistor to be measured based on the antenna power capacity and the balance principle of the transmitting antenna;

[0076] The second determination module 430 is used to determine the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle;

[0077] The third determination module 440 is used to obtain the applied antenna feeder circuit based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured.

[0078] As an optional implementation, the above-mentioned series-parallel antenna feeder circuit also includes a first group of ports, a second group of ports and a third group of ports; the load resistor to be measured includes a first load resistor and a second load resistor; wherein, one end of the first load resistor is connected to the first group of ports, and the first group of ports is connected to the transmitter coaxial cable port; the other end of the first load resistor is connected to the second group of ports, and the second group of ports is connected to the antenna port; one end of the second load resistor is connected to the first group of ports; the other end of the second load resistor is connected to the third group of ports, and the third group of ports is connected to the antenna port; the first load resistor is connected to the second load resistor in series, and the impedance matching resistor to be measured is connected in parallel with the first load resistor and the second load resistor.

[0079] As an optional embodiment, the first group of ports includes port A1 and port A2, port A1 is connected to the inner conductor of the transmitter coaxial cable, and port A2 is connected to the outer conductor of the transmitter coaxial cable; the second group of ports includes port B1 and port B2, port B1 is connected to the antenna element at one end of the antenna, and port B2 is connected to the feeder packaging shell; the third group of ports includes port C1 and port C2, port C1 is connected to the antenna element at the other end of the antenna and is opposite to the connection end of port B1, and port C2 is connected to the feeder packaging shell.

[0080] As an optional implementation, the above-mentioned first determination module 420 is also used to, based on the principle of balance, make the resistance value of the first load resistor equal to the resistance value of the second load resistor; based on the resistance value of the first load resistor being equal to the resistance value of the second load resistor, the first load resistor and the second load resistor being connected in series, and the antenna power capacity, determine the resistance value of the first load resistor and the resistance value of the second load resistor.

[0081] As an optional implementation, the second determination module 430 is further used to establish, based on the impedance matching principle and the characteristic impedance of the first group of ports obtained in advance, the characteristic impedance of the first group of ports, the impedance relationship between the first branch and the second branch; the first branch includes the impedance matching resistor to be measured, and the second branch includes the first load resistor and the second load resistor; based on the pre-acquired antenna center frequency, the first input impedance of the first branch is determined; based on the pre-acquired second feeder length of the second branch, the second input impedance of the second branch is determined; based on the impedance relationship, the first input impedance and the second input impedance, the resistance value of the impedance matching resistor to be measured is obtained.

[0082] As an optional implementation, the second determination module 430 is also used to establish a first correlation formula and a second correlation formula based on the impedance relationship, the first input impedance and the second input impedance; obtain the first feeder length of the first branch based on the first correlation formula and the second correlation formula; obtain the resistance value of the impedance matching resistor to be measured based on the first feeder length and the first correlation formula or the second correlation formula.

[0083] As an optional implementation, the phase difference of the transmitter coaxial cable connected to the first group of ports in the left and right full frequency band is 180 degrees.

[0084] It should be noted that the antenna feed line design device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example when executing the antenna feed line design method. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0085] In addition, the antenna feed line design device and the antenna feed line design method embodiment provided in the above embodiment belong to the same concept. Therefore, for details not disclosed in the device embodiment of this specification, please refer to the antenna feed line design method embodiment mentioned above in this specification, and no further details will be given here.

[0086] After introducing the method and apparatus of the exemplary embodiment of the present application, next, reference is made to Figure 5 For a description of the computer-readable storage medium of the exemplary embodiment of the present application, please refer to Figure 5 , the computer-readable storage medium shown is a CD 50, on which a computer program (i.e., a program product) is stored. When the computer program is executed by the processor, the steps recorded in the above method implementation are implemented, for example, based on the transmitting antenna model and the preset connection rule, a series-parallel antenna feeder circuit is constructed; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; based on the antenna power capacity of the transmitting antenna and the balance principle, the resistance value of the load resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the impedance matching principle, the resistance value of the impedance matching resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured, the application antenna feeder circuit is obtained; the specific implementation method of each step will not be repeated here.

[0087] It should be noted that examples of the computer-readable storage medium may also include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other optical or magnetic storage media, which are not listed here one by one.

[0088] After introducing the method, apparatus and medium of the exemplary embodiments of the present application, next, reference is made to Figure 6 A computing device for model processing according to an exemplary embodiment of the present application.

[0089] Figure 6 A block diagram of an exemplary computing device 60 suitable for implementing embodiments of the present application is shown. The computing device 60 may be a computer system or a server. Figure 6 The computing device 60 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present application.

[0090] like Figure 6 As shown, the components of the computing device 60 may include, but are not limited to: one or more processors or processing units 601, a system memory 602, and a bus 603 connecting different system components (including the system memory 602 and the processing unit 601).

[0091] The computing device 60 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computing device 60, including volatile and non-volatile media, removable and non-removable media.

[0092] The system memory 602 may include computer system readable media in the form of volatile memory, such as RAM 6021 and / or cache memory 6022, where RAM is random access memory. The computing device 60 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, ROM 6023 may be used to read and write non-removable, non-volatile magnetic media ( Figure 6 is not shown in the Figure 6As shown in FIG. 6 , a disk drive for reading and writing a removable non-volatile disk (e.g., a "floppy disk") and an optical disk drive for reading and writing a removable non-volatile optical disk (e.g., a CD-ROM, a DVD-ROM, or other optical media) can be provided. In these cases, each drive can be connected to bus 603 via one or more data medium interfaces. System memory 602 may include at least one program product having a set (e.g., at least one) of program modules that are configured to perform the functions of each embodiment of the present application.

[0093] A program / utility 6025 having a set (at least one) of program modules 6024 may be stored, for example, in system memory 602, and such program modules 6024 include, but are not limited to, an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. Program modules 6024 generally perform the functions and / or methods of the embodiments described herein.

[0094] The computing device 60 may also communicate with one or more external devices 604 (e.g., a keyboard, a pointing device, a display, etc.). Such communication may be performed via an I / O interface 605, which is an input / output interface. Furthermore, the computing device 60 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 606. Figure 6 As shown, the network adapter 606 communicates with other modules (such as the processing unit 601, etc.) of the computing device 60 via the bus 603. It should be understood that although Figure 6 Not shown, other hardware and / or software modules may be used in conjunction with computing device 60 .

[0095] The processing unit 601 executes various functional applications and data processing by running the program stored in the system memory 602, for example, based on the transmitting antenna model and the preset connection rules, a series-parallel antenna feeder circuit is constructed; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; based on the antenna power capacity of the transmitting antenna and the principle of balance, the resistance value of the load resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the impedance matching principle, the resistance value of the impedance matching resistor to be measured is determined; based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured, the application antenna feeder circuit is obtained. The specific implementation method of each step is not repeated here. It should be noted that although several units / modules or sub-units / sub-modules of the antenna feeder design device are mentioned in the above detailed description, this division is only exemplary and not mandatory. In fact, according to the embodiment of the present application, the features and functions of two or more units / modules described above can be concretized in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided into multiple units / modules to be concretized.

[0096] In the description of the present application, it should be noted that the terms "first", "second" and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0097] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0098] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0099] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0100] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0101] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a non-volatile computer-readable storage medium that is executable by a processor. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0102] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application, rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed in the present application, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

[0103] In addition, although the operations of the method of the present application are described in a specific order in the drawings, this does not require or imply that the operations must be performed in this specific order, or that all the operations shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps.

Claims

1. A method for designing an antenna feed line, characterized in that: The method comprises: Based on the transmitting antenna model and the preset connection rules, a series-parallel antenna feeder circuit is constructed; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; Determining the resistance value of the load resistor to be measured based on the antenna power capacity and the balance principle of the transmitting antenna; Determine the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle; Based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured, an applied antenna feeder circuit is obtained.

2. The method according to claim 1, characterized in that The series-parallel antenna feeder circuit further includes a first group of ports, a second group of ports and a third group of ports; the load resistor to be measured includes a first load resistor and a second load resistor; One end of the first load resistor is connected to the first group of ports, and the first group of ports is connected to the transmitter coaxial cable port; the other end of the first load resistor is connected to the second group of ports, and the second group of ports is connected to the antenna port; One end of the second load resistor is connected to the first group of ports; the other end of the second load resistor is connected to the third group of ports, and the third group of ports is connected to the antenna port; The first load resistor is connected in series with the second load resistor, and the impedance matching resistor to be measured is connected in parallel with the first load resistor and the second load resistor.

3. The method according to claim 2, characterized in that The first group of ports includes port A1 and port A2, the port A1 is connected to the inner conductor of the transmitter coaxial cable, and the port A2 is connected to the outer conductor of the transmitter coaxial cable; The second group of ports includes port B1 and port B2, the port B1 is connected to the antenna element at one end of the antenna, and the port B2 is connected to the feeder packaging shell; The third group of ports includes port C1 and port C2. Port C1 is connected to the antenna element at the other end of the antenna and is opposite to the connection end of port B1. Port C2 is connected to the feeder packaging shell.

4. The method according to claim 2, characterized in that The step of determining the resistance value of the load resistor to be measured based on the antenna power capacity and the balance principle includes: Based on the balance principle, the resistance value of the first load resistor is equal to the resistance value of the second load resistor; The resistance values ​​of the first load resistor and the second load resistor are determined based on that the resistance values ​​of the first load resistor and the second load resistor are equal, the first load resistor and the second load resistor are connected in series, and the antenna power capacity.

5. The method according to claim 4, characterized in that The step of determining the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle includes: Based on the impedance matching principle and the characteristic impedance of the first group of ports obtained in advance, establish an impedance relationship between the characteristic impedance of the first group of ports, the first branch and the second branch; the first branch includes the impedance matching resistor to be measured, and the second branch includes the first load resistor and the second load resistor; Determining a first input impedance of the first branch based on a pre-acquired antenna center frequency; Determining a second input impedance of the second branch based on a pre-acquired second feeder length of the second branch; Based on the impedance relationship, the first input impedance, and the second input impedance, a resistance value of the impedance matching resistor to be measured is obtained.

6. The method according to claim 5, characterized in that The obtaining the resistance value of the impedance matching resistor to be measured based on the impedance relationship, the first input impedance and the second input impedance includes: Establishing a first correlation equation and a second correlation equation based on the impedance relationship equation, the first input impedance, and the second input impedance; Based on the first correlation formula and the second correlation formula, obtaining a first feeder length of the first branch; Based on the first feeder line length and the first correlation equation or the second correlation equation, a resistance value of the impedance matching resistor to be measured is obtained.

7. The method according to claim 2, characterized in that The phase difference of the transmitter coaxial cable connected to the first group of ports in the left and right full frequency band is 180 degrees.

8. An antenna feed line design device, characterized in that: The device comprises: A creation module is used to construct a series-parallel antenna feeder circuit based on a transmitting antenna model and a preset connection rule; the series-parallel antenna feeder circuit includes a load resistor to be measured and an impedance matching resistor to be measured; A first determination module is used to determine the resistance value of the load resistor to be measured based on the antenna power capacity and the balance principle of the transmitting antenna; A second determination module is used to determine the resistance value of the impedance matching resistor to be measured based on the resistance value of the load resistor to be measured and the impedance matching principle; The third determination module is used to obtain the applied antenna feeder circuit based on the resistance value of the load resistor to be measured and the resistance value of the impedance matching resistor to be measured.

9. A computer-readable storage medium, characterized in that: The method comprises instructions, which, when executed on a computer, enable the computer to execute the method according to any one of claims 1 to 7.

10. A computing device, characterized in that The computing device comprises: at least one processor, memory, and input-output unit; The memory is used to store a computer program, and the processor is used to call the computer program stored in the memory to execute the method according to any one of claims 1 to 7.

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