Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor

A technology of radial waveguide and circular waveguide, which is applied in the direction of waveguide devices, electrical components, connecting devices, etc., can solve the problems of strict processing and assembly requirements, large loss, low yield, etc., to reduce processing requirements and power capacity Great effect with little loss

Inactive Publication Date: 2016-02-10
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this circuit, the size of the coaxial line is very small, requiring very strict processing and assembly requirements, high manufacturing cost and low yield. When the working frequency band is higher, the size is smaller, and this structure is more difficult to realize.
In addition, the power capacity of the coaxial line is much smaller than that of the hollow waveguide, and the loss is much greater than that of the hollow waveguide, so it is not suitable for high-power use

Method used

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  • Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor
  • Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor
  • Circular waveguide higher mode TM01 based radial waveguide power synthesis/distributor

Examples

Experimental program
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Embodiment

[0024] In this example, if figure 1 As shown in the structure, the radial waveguide power combiner / distributor works in the W frequency band, the working frequency is 90-98GHz, the input port 1, the output port P1, P2, ..., Pn are BJ900 standard rectangular waveguides, the size is 2.54mm×1.27mm, and the circle The waveguide 302 has a diameter of 2.8 mm. The signal is input from port 1 and converted to TM in the circular waveguide 302 through the mode converter 01 Mode, then distributed to the output ports P1, P2, ..., Pn through the equal amplitude and phase of the distributor 4. In this example, n=12, and the coupling amount of each output port is -10·log(n)=-10.73dB. Each port is symmetrical about the center of the circular waveguide 302, and has good amplitude and phase balance. The S parameters of each port are as follows: image 3 As shown, the return loss of the input port is less than -19dB.

[0025] The output ports of a pair of radial waveguide power combiners / dist...

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PUM

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Abstract

The invention discloses a waveguide multi-path power synthesis/distributor applicable to a millimeter wave frequency high end. The radial waveguide power synthesis/distributor is based on a circular waveguide higher mode TM01 mode; the radial waveguide power synthesis/distributor comprises a rectangular waveguide input port, a mode converter, a circular waveguide, a matching structure and a plurality of (n is greater than or equal to 2) rectangular waveguide output ports; a TM01 mode is excited in the circular waveguide by a TE10 mode in the rectangular waveguide through the mode converter so as to realize space-time symmetry of the field distribution on the circular waveguide cross section; the mode conversion and energy distribution from the TM01 mode in the circular waveguide to the TE10 mode of the n rectangular waveguides can be realized through the multi-path power distributor; and the signals of each output port are uniform in amplitude and the same in phase. The radial waveguide power synthesis/distributor avoids the use of coaxial TEM modes; and the radial waveguide power synthesis/distributor has the advantages of larger circuit dimensions, lower processing requirement, high power capacity and low loss.

Description

technical field [0001] The invention relates to the technical field of millimeter wave power synthesis / distribution, in particular to a circular waveguide-based high-order mode TM 01 radial power combiner / divider. Background technique [0002] Millimeter wave has the advantages of narrow beam, wide frequency range, strong anti-interference ability and large information capacity, and has attracted attention from all walks of life. The millimeter wave power amplifier is a key component of the millimeter wave system and is widely used in military radar systems, radio astronomy and space. As well as wireless high-speed transmission and other fields, it has huge application value and market prospects. Benefiting from the development of technologies such as semiconductor materials and processes, the output capability of solid-state power amplifiers has been greatly improved, but the output power of a single solid-state device is still limited. The power synthesis technology comb...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P5/12
Inventor 詹铭周杨涛何望栋刘珂伟李宁晓杨明涛
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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