Microwave amplitude limiter

A limiter and microwave technology, which is applied in the field of limiters, can solve the problems of limiting the large-scale application of the waveguide plasma limiter in scientific experiments, and the inability to realize the on-line debugging of the limiter power, so as to achieve large-scale industrial production, Low air tightness requirements and low cost effect

Inactive Publication Date: 2019-08-30
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 the existing waveguide plasma limiter, either need to work in a specific atmosphere, or form plasma in the entire cavity, or can not realize the online adjustment of the limiting power, which limits the industrialization of waveguide plasma limiter Scale applications and for scientific experiments

Method used

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  • Microwave amplitude limiter
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] figure 1 An embodiment of a microwave limiter among numerous embodiments of the present invention is shown as an example. The microwave limiter includes a waveguide 1 and a first probe 2 .

[0079] see also Figure 2-4 , the waveguide 1 is a rectangular waveguide, and its side walls include wide and narrow side walls. The shape of the waveguide 1 is rectangular, and flanges are arranged at both ends thereof. The waveguide 1 includes opposite end faces 11, 12, a waveguide cavity 13 and three first through holes. The waveguide cavity 13 runs through the two end faces 11, 12, and the waveguide cavity 13 is rectangular. The first opening 14 and the second opening 15 are respectively formed on the two ends 11 and 12 of the waveguide cavity 13 . Three first through holes are arranged on the wide side wall of the waveguide cavity 13 and arranged in a row along the longitudinal direction of the waveguide cavity 13 .

[0080] The number of the first probes 2 is three, and o...

Embodiment 2

[0087] see Figure 9-12 The difference between the microwave limiter shown in this embodiment and the microwave limiter shown in Embodiment 1 is that: three first through holes are arranged on the wide side wall of the waveguide cavity 13, and arranged in a row along the waveguide cavity 13 horizontally; Including 3 second through holes and 3 second probes 3, the 3 second through holes are set on the wide side wall of the waveguide cavity 13 opposite to the wide side wall where the first through hole is located and correspond to the first through holes one by one And concentric, one end of the second probe 3 has a second tip 31, a second probe 3 is installed in each second through hole and the second probe 3 can move back and forth axially along the second through hole, The second tip 31 protrudes into the waveguide cavity 13, and the first and second tips 21, 31 are arranged opposite to each other. Other than that, everything else is the same as the microwave limiter shown i...

Embodiment 3

[0094] see Figure 17-23The difference between the microwave limiter shown in this embodiment and the microwave limiter shown in Embodiment 2 is that the three first and second through holes are respectively arranged on the opposite wide side walls of the waveguide cavity 13, and respectively along the waveguide The cavity 13 is arranged in a row in the longitudinal direction, and the three second through holes are arranged in a row in the longitudinal direction along the waveguide cavity 13; the second through holes correspond to the first through holes and are concentric, and the first and second tips 21, 31 are arranged opposite to each other, which is beneficial to The microwave plasma is excited; it also includes the air hole 4, the first sealed resonant window 5 and the second sealed resonant window 6; the air hole 4 communicates with the waveguide cavity 13, which is used to fill the waveguide cavity with an inert gas or a mixed gas, and the inflation is completed After...

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PUM

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Abstract

The invention discloses a microwave amplitude limiter, which comprises a waveguide and first probes, wherein the waveguide includes two opposite end faces, a waveguide cavity penetrating through the two end faces and a plurality of first through holes arranged on the side wall of the waveguide cavity, and the plurality of first through holes are arranged in a column along the longitudinal direction or arranged in a row along the transverse direction of the waveguide cavity; one end of each first probe is provided with a first tip; the waveguide cavity is provided with a first opening and a second opening respectively on the two end faces; each first through hole is internally provided with the first probe in a penetrating manner, the first probe can move back and forth along the axial direction of the corresponding first through hole, and the first tips all extend into the waveguide cavity. The microwave amplitude limiter can realize the on-line debugging of the amplitude limiting power, and is used for carrying out amplitude limiting on the microwave power.

Description

technical field [0001] The invention relates to a limiter, in particular to a microwave limiter. Background technique [0002] The microwave limiter is a microwave power modulation device. When the microwave transmission power is less than the limit threshold level, the microwave passes through almost without attenuation. When the microwave transmission power is equal to or greater than the limit power, the microwave transmission power is not greater than the limit. The remaining power is absorbed or reflected by the microwave limiter. Microwave limiters are divided into solid-state microwave limiters and gas discharge microwave limiters. Solid-state microwave limiters are generally used as micro-power (microwatt) to medium-power (hundred-watt) microwave limiters. The gas discharge microwave limiter can be limited as low power (watt level), medium power (hundred watt level), high power (megawatt level), or even super high power (gigawatt level). Among the gas discharge mi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/46
CPCH05H1/46H05H1/4622
Inventor 曾葆青王双陈涛赵静柴璇赵培阳杜知了柳建龙吴喆
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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