Multiplexer-based multi-beam microwave source

A multiplexer and microwave source technology, applied in the field of microwave signal generation, can solve problems such as narrow bandwidth, low modulation frequency of millimeter wave sources, and high cost of multiple signal sources, and achieve high frequency stability, low cost, and adjustable frequency Effect

Pending Publication Date: 2019-07-05
SOUTHWESTERN INST OF PHYSICS
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Problems solved by technology

[0004] The purpose of the present invention is to provide a multi-beam microwave source based on a multiplexer, which solves the problem of high cost of multiple signal sources, low modulation frequency of millimeter-wave sources, and narrow bandwidth when multiple frequency signal arrays are generated in the prior art. limit

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Such as figure 1 As shown, a multi-beam microwave source based on a multiplexer includes a first multiplexer 1, a microwave amplifier group 2, a second multiplexer 3 and a qualitative coupler 4, wherein some of the first multiplexer 1 And the output end is connected with the input end of the second multiplexer 3 by microwave amplifier group 2, the output end of the second multiplexer 2 is connected with the input end of directional coupler 4, simultaneously, the first multiplexer 1 The coupling end is connected with the input end of the first multiplexer 1; the output end of the directional coupler 4 is connected with the signal output monitoring quantity system 7 through the microwave isolator 5 and the monitoring coupler 6 successively, and makes the output of the monitoring coupler 6 end is connected with the output antenna...

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Abstract

The present invention belongs to the field of microwave signal generation technologies and discloses a multiplexer-based multi-beam microwave source. The multiplexer-based multi-beam microwave sourcecomprises a first multiplexer, a second multiplexer and a directional coupler; the plurality of sum output ends of the first multiplexer are connected with the input ends of the second multiplexer through a microwave amplifier group; the output end of the second multiplexer is connected with the input end of the directional coupler; and the coupling end of the first multiplexer is connected with the input end of the first multiplexer. The multiplexer-based multi-beam microwave source provided by the invention can simultaneously output microwave signal sources of multiple frequencies, and has the advantages of low cost, high frequency stability, high power flatness, easiness in maintenance, low phase noises, adjustable frequencies and the like.

Description

technical field [0001] The invention belongs to the technical field of microwave signal generation, and in particular relates to a multi-beam microwave source based on a multiplexer. Background technique [0002] Comb frequency signal generators have very important applications in the fields of electronic circuits, radio frequency and microwave. It can be used as multiple frequency signal sources for measurement at different frequency points. [0003] In the research of controlled nuclear fusion experiments, the turbulent disturbance and distribution of different scales inside the plasma determine the confinement and transport of the plasma. Obtaining the relationship between these disturbances at different scales is helpful for the study of plasma physics and the safety control of plasma cross section. important help. Microwave reflection is one of the most important diagnostics for measuring plasma turbulence distribution. Its basic principle is to use microwave reflecti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01T1/29
CPCG01T1/29G01T1/2914
Inventor 石中兵钟武律蒋敏施培万杨曾辰
Owner SOUTHWESTERN INST OF PHYSICS
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