Search

CN-121984469-A - Power synthesis circuit, design method, device, equipment, medium and product thereof

CN121984469ACN 121984469 ACN121984469 ACN 121984469ACN-121984469-A

Abstract

The utility model relates to the technical field of communication, in particular to a power synthesis circuit and a design method, a device, equipment, a medium and a product thereof, wherein the power synthesis circuit comprises a transformer, a first resistor, a second resistor and a third resistor, the primary side of the transformer comprises a first terminal and a second terminal, the first terminal is connected with a first branch port of a power divider, the second terminal is grounded, the secondary side of the transformer comprises a third terminal and a fourth terminal, the third terminal is connected with a junction port, the fourth terminal is connected with a second branch port of the power divider through the second resistor, two ends of the first resistor are respectively connected with the junction port and the second branch port, and the fourth terminal is grounded through the third resistor. The insertion loss between each branch port and the combining port can be changed by adjusting the first resistor and the third resistor, so that signal energy in the circuit is distributed or combined efficiently, and meanwhile, each branch port and the combining port are not interfered with each other, and the circuit has high isolation.

Inventors

  • QU ZIQI
  • DENG PU
  • Wang aobo
  • JIANG JUN
  • TANG TIAN
  • ZHANG YUFENG
  • CHEN JIE

Assignees

  • 元测信息技术(成都)有限公司

Dates

Publication Date
20260505
Application Date
20251211

Claims (10)

  1. 1. The power synthesis circuit is characterized by comprising a transformer, a first resistor, a second resistor and a third resistor; The primary side of the transformer comprises a first terminal and a second terminal, the first terminal is connected with a first branch port of the power divider, and the second terminal is grounded; The secondary side of the transformer comprises a third terminal and a fourth terminal, the third terminal is connected with a junction port, the fourth terminal is connected with a second branch port of the power divider through the second resistor, and two ends of the first resistor are respectively connected with the junction port and the second branch port; the fourth terminal is grounded through the third resistor.
  2. 2. The power combining circuit of claim 1, wherein the load impedance of the first branch port, the second branch port, and the combining port matches the resistance of the second resistor.
  3. 3. The power combining circuit of claim 1 wherein the impedance ratio of the transformer is 1:1.
  4. 4. A design method for a power combining circuit, which is used for designing the power combining circuit as claimed in any one of claims 1 to 3, and is characterized by comprising: Determining the resistance value of the second resistor; Determining the resistance values of the first resistor and the third resistor based on the resistance value of the second resistor and a preset resistance value relation; and adjusting the insertion loss of the first branch port, the second branch port and the combining port by adjusting the resistance values of the first resistor and the third resistor.
  5. 5. The method for designing a power combining circuit according to claim 4, wherein the resistance relation includes: The product of the resistance of the first resistor and the third resistor is equal to the square of the resistance of the second resistor.
  6. 6. The method of designing a power combining circuit according to claim 4, wherein determining the resistance value of the second resistor includes: Acquiring load impedance of the first branch port, the second branch port and the combining port; and determining the resistance value of the second resistor based on the load impedance.
  7. 7. A design apparatus for a power combining circuit, configured to implement the design method of any one of claims 4 to 6, comprising: The first calculation module is used for determining the resistance value of the second resistor; The second calculation module is used for determining the resistance values of the first resistor and the third resistor based on the resistance value of the second resistor and a preset resistance value relation; And the adjusting module is used for adjusting the insertion loss of the first branch port, the second branch port and the combining port by adjusting the resistance values of the first resistor and the third resistor.
  8. 8. A computer embedded device comprising a memory, a processor and a computer program stored on the memory, characterized in that the processor executes the computer program to implement the method of any of claims 4-6.
  9. 9. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the method of any of claims 4-6.
  10. 10. A computer program product comprising a computer program, which, when executed by a processor, implements the method of any of claims 4-6.

Description

Power synthesis circuit, design method, device, equipment, medium and product thereof Technical Field The disclosure relates to the field of communication technologies, and in particular, to a power synthesis circuit, and a design method, a device, equipment, a medium and a product thereof. Background The power synthesizer is a key element in the field of radio frequency microwaves, is suitable for electronic equipment which needs to perform broadband power synthesis in a radio frequency circuit, such as instruments and meters, communication base stations and the like, and plays an important role in signal transmission and power management. Common power combiners include wilkinson power splitters, resistive power splitters, hybrid couplers, and the like. However, with the continuous progress of technology, the requirements of the electronic devices such as instruments and meters for miniaturization and high bandwidth are urgent, and these common power synthesizers have the problems that the broadband characteristics, miniaturization, high isolation between ports and the like cannot be achieved, and a good balance between the high bandwidth, the high isolation between ports and the miniaturization cannot be achieved. Disclosure of Invention The present disclosure has been made in view of the above problems, and provides a power combining circuit, and a design method, apparatus, device, medium, and product thereof. According to one aspect of the present disclosure, there is provided a power combining circuit including a transformer, a first resistor, a second resistor, and a third resistor; The primary side of the transformer comprises a first terminal and a second terminal, the first terminal is connected with a first branch port of the power divider, and the second terminal is grounded; The secondary side of the transformer comprises a third terminal and a fourth terminal, the third terminal is connected with a junction port, the fourth terminal is connected with a second branch port of the power divider through the second resistor, and two ends of the first resistor are respectively connected with the junction port and the second branch port; the fourth terminal is grounded through the third resistor. The circuit has the beneficial effects that the first resistor is a coupling resistor, the second resistor is a series resistor, the third resistor is a parallel resistor, the resistance value of the second resistor is generally fixed, the insertion loss between each branch port and the combining port can be changed by adjusting the sizes of the first resistor and the third resistor, so that the signal energy in the circuit is distributed or combined efficiently, meanwhile, the branch ports and the combining ports are not interfered with each other, and the circuit has high isolation. The power synthesis circuit of the scheme realizes the function which can be realized by the traditional complex circuit by using 1 transformer and 3 resistors and a small number of elements, is beneficial to realizing the miniaturization of the power synthesis circuit, can reduce the volume of the power synthesis circuit when being applied to electronic equipment, does not depend on a circuit with a specific length, and has the characteristic of wide frequency band. Further, according to the power combining circuit of one aspect of the present disclosure, load impedances of the first branch port, the second branch port, and the combining port are matched with a resistance value of the second resistor. Furthermore, according to a power combining circuit of one aspect of the present disclosure, the impedance ratio of the transformer is 1:1. According to one aspect of the present disclosure, there is provided a design method of a power combining circuit, including: Determining the resistance value of the second resistor; Determining the resistance values of the first resistor and the third resistor based on the resistance value of the second resistor and a preset resistance value relation; and adjusting the insertion loss of the first branch port, the second branch port and the combining port by adjusting the resistance values of the first resistor and the third resistor. The transformer has the beneficial effects that the impedance ratio of the transformer is 1:1, the three resistors have different resistance values, different power distribution schemes can be realized, when the preset resistance value relation is met, ideal isolation and insertion loss between each branch port and the combining port can be obtained, and the index requirements of miniaturization, high broadband and high isolation are integrally considered. In addition, according to the design method of the power synthesis circuit in one aspect of the disclosure, the resistance relation comprises that the resistance multiplication product of the first resistor and the third resistor is equal to the resistance square of the second resistor. In one or more embodimen