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Multi-path injection lock magnetron coherent power combination microwave source

An injection locking and magnetron technology, applied in the field of microwave radiation sources, can solve problems such as difficult implementation and complex structure, and achieve the effects of reducing adverse effects, meeting high power requirements, and improving accuracy

Active Publication Date: 2013-07-10
SICHUAN UNIV
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Problems solved by technology

Both of these methods achieve frequency-locked phase modulation by changing the working parameters of the magnetron, and both involve the transformation of the structure of the magnetron itself, which is complex and difficult to implement.

Method used

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  • Multi-path injection lock magnetron coherent power combination microwave source
  • Multi-path injection lock magnetron coherent power combination microwave source

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Embodiment

[0023] The multi-channel injection-locked magnetron coherent power synthesis microwave source of the present invention can be regarded as having N branches connected in parallel, as figure 1 shown. Each branch has the same structure, such as figure 2 As shown, including independent signal source 1, power amplifier 12, circulator 2, coupler 3, magnetron 4, mixer 5 and filter 7 ( figure 2 part above the dotted line), where the control device 6 ( figure 2 The part below the dotted line) is common to the system, and is used to control N independent signal sources separately.

[0024] The following is an example of a magnetron microwave source operating in the C-band with a frequency of 5.799 GHz to illustrate the structure and implementation of the present invention. Correspondingly, the injected signal frequency=5.799GHz, the center frequency of the magnetron=5.800GHz, and the standard signal frequency=100kHz.

[0025] The multi-channel injection-locked magnetron coherent ...

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Abstract

The invention relates to microwave radiant sources, and discloses a multi-path injection lock magnetron coherent power combination microwave source. A method of power injection is adopted to carry out microwave injection frequency locking and phase modulation on multiple branches of magnetrons. The multi-path injection lock magnetron coherent power combination microwave source comprises N independent signal sources, the N magnetrons, N circulators, N couplers, N frequency mixers, N filters and a control device. The high-stability signal sources are used for generating injection signals of which frequency is close to inherent resonant frequency of the magnetrons, the signals are directly injected to the magnetrons through the circulators, and when the amplitude of the injection signals reaches to a fair magnitude order, oscillation frequency of the magnetrons are synchronous with phases of the injection signals. The multi-path injection lock magnetron coherent power combination microwave source improves frequency and phase stability of output microwaves of the magnetrons, can meet requirements of microwave coherent power combination, and is particularly suitable for being used in the technical field of microwave transmitted energy and industrial application of microwave energy.

Description

technical field [0001] The invention relates to a microwave radiation source, in particular to a coherent microwave transmitting system composed of a magnetron combination using microwave injection from an independent signal source for frequency-locked and phase-modulated (frequency locked and phase adjusted). It is mainly used for microwave coherent power combining technology in the field of microwave energy transmission and industrial application of microwave energy. Background technique [0002] In the field of high-power microwave technology such as microwave energy transmission and industrial application of microwave energy, it is often necessary to obtain as high a microwave power as possible. Since the output power of a single microwave source is limited by the power capacity of the device itself, using microwave power combining technology is an effective way to solve this problem. In the existing microwave power combining technology, there are two categories of cohe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03L7/00
Inventor 黄卡玛刘长军郭庆功胡罗林杨阳闫丽萍陈星赵翔沈照国
Owner SICHUAN UNIV
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