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Low-loss low-profile microwave power divider

A power divider, microwave power technology, applied in waveguide-type devices, electrical components, connecting devices, etc., can solve the problems of difficult requirements, large size, frequency bandwidth, etc., and achieve the effect of expanding application fields, improving performance, and simplifying structure

Active Publication Date: 2014-06-18
WUXI CHUANGYUAN ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waveguide power splitter has small insertion loss and wide frequency band, but it has high cost and large size; the coaxial power splitter has poor isolation performance, and its application form in microwave circuits is limited; the microstrip power splitter has large insertion loss and power division ratio design Difficult, for example, to achieve 5-port unequal microwave power division generally requires two power divisions, and it is difficult to design and debug
[0003] Existing microwave power splitters have been widely used, but with the advancement of technology and the needs of production and life, the requirements for the insertion loss and size of the microwave power splitter are getting higher and higher, and the requirements of these two aspects are met at the same time very difficult

Method used

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  • Low-loss low-profile microwave power divider
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  • Low-loss low-profile microwave power divider

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1 and Embodiment 2 are N equally divided same-phase low-loss low-profile power dividers:

[0035] Example 1

[0036] This embodiment is a microwave power divider with low loss and low profile, including an input coaxial cable 11, a power divider 12 and N output coaxial cables 131, 132, ... 13N, where N is greater than or equal to 1 Integer, both the input coaxial cable and the output coaxial cable have an inner conductor and an outer conductor, both the input coaxial cable and the output coaxial cable have a connection end connected to a power divider and a signal end connected to an external device, and the power divider has an inner conductor The cavity, the metal wall on the input side on one side of the cavity, and the metal wall on the output side on the other side of the cavity opposite to the metal wall on the input side, the cavity is filled with medium; the external conductor of the connection end of the input coaxial line is connected to the p...

Embodiment 2

[0039]This embodiment is a microwave power divider with low loss and low profile, including an input coaxial cable 11, a power divider 12 and N output coaxial cables 131, 132, ... 13N, where N is greater than or equal to 1 Integer, both the input coaxial cable and the output coaxial cable have an inner conductor and an outer conductor, both the input coaxial cable and the output coaxial cable have a connection end connected to a power divider and a signal end connected to an external device, and the power divider has an inner conductor The cavity, the metal wall on the input side on one side of the cavity, and the metal wall on the output side on the other side of the cavity opposite to the metal wall on the input side, the cavity is filled with medium; the external conductor of the connection end of the input coaxial line is connected to the power The metal wall of the input side of the distributor, the inner conductor of the connection end of the input coaxial line passes thr...

Embodiment 3

[0041] Embodiment 3 and Embodiment 4 are N unequal same-phase low-loss low-profile power dividers:

[0042] Example 3

[0043] This embodiment is a microwave power divider with low loss and low profile, including an input coaxial cable 11, a power divider 12 and N output coaxial cables 131, 132, ... 13N, where N is greater than or equal to 1 Integer, both the input coaxial cable and the output coaxial cable have an inner conductor and an outer conductor, both the input coaxial cable and the output coaxial cable have a connection end connected to a power divider and a signal end connected to an external device, and the power divider has an inner conductor The cavity, the metal wall on the input side on one side of the cavity, and the metal wall on the output side on the other side of the cavity opposite to the metal wall on the input side, the cavity is filled with medium; the external conductor of the connection end of the input coaxial line is connected to the power The meta...

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Abstract

The invention relates to a power divider, in particular to a low-loss low-profile microwave power divider, which comprises an input coaxial line, a power divider and N output coaxial lines. A conductor outside a connecting end of the input coaxial line is connected with an input side metal wall of the power divider, and a conductor inside the connecting end of the input coaxial line penetrates through a cavity of the power divider and is connected with an output side metal wall of the power divider; and conductors outside connecting ends of the output coaxial lines are connected with the output side metal wall of the power divider, and conductors inside the connecting ends of the output coaxial lines penetrate through the cavity of the power divider and are connected with the input side metal wall of the power divider. The position of an extraction point can be changed based on point extraction of energy distributed in the inner field of a microwave cavity, and changes of the power division ratio can be realized, and the low-loss low-profile microwave power divider is simple and flexible and can adapt to a variety of applications.

Description

technical field [0001] The invention relates to a power divider, in particular to a microwave power divider with low loss and low profile. Background technique [0002] Microwave power divider with low loss and low profile is a microwave power distribution technology that uses the electromagnetic field distribution inside the power divider and extracts power in the electromagnetic field. This technology is a power divider with low loss, low cost, low profile and simple structure. It can be widely used in various microwave and antenna systems. The implementation methods of microwave power splitters can generally be divided into waveguide power splitters, coaxial line power splitters and microstrip power splitters, which are mainly classified according to the circuit type of microwave power splitters. The waveguide power splitter has small insertion loss and wide frequency band, but it has high cost and large size; the coaxial power splitter has poor isolation performance, an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P5/12
Inventor 李平何英高邵娴
Owner WUXI CHUANGYUAN ELECTRONICS TECH