Microwave driving source

An excitation source and microwave technology, applied in the microwave field, can solve the problem that the microwave excitation source cannot be fully equipped, and achieve the effects of low phase noise and high clutter suppression capability.

Active Publication Date: 2009-11-18
成都利尼科医学技术发展有限公司
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Problems solved by technology

[0004] The object of the present invention is to provide a microwave excitation source, which aims to solve

Method used

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Embodiment Construction

[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0015] figure 1 The implementation structure of the microwave excitation source provided by the embodiment of the present invention is shown, and for the convenience of description, only the parts related to the embodiment of the present invention are shown.

[0016] The microwave excitation source mainly includes a frequency synthesizer 12, a frequency meter 11, a modulator 13, an adjustment controller 15, a microwave pulse power amplifier 14, a variable attenuator 16, a directional coupler 17, a wave detector 18 and a power indicator 19 .

[0017] Wherein, the frequency synthesizer 12 is compos...

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Abstract

The invention is applied to the technical field of microwave and provides a microwave driving source mainly comprising a frequency synthesizer composed of a voltage adjusting control circuit, a voltage controlled crystal oscillator and a solid state oscillator, a cymometer, a modulator, a tuning controller, a microwave pulse power amplifier, a variable attenuator, a directional coupler, a detector, a power indicator and the like. The invention is characterized in that the output frequencies in the range from 40W to 200W are respectively and continuously adjusted, the frequency stability of output signals reaches to 5 multiplied by 10(-6), the frequency adjustment rang of output signals is larger than or equal to 4MHz, the driving source automatically indicate output frequency and output power in real time, the phase noise is low, and the clutter suppression ability is high.

Description

technical field [0001] The invention belongs to the field of microwave technology, in particular to a microwave excitation source. Background technique [0002] Electron linear accelerator is a device that uses high-power radio frequency electromagnetic field to accelerate electrons in a straight line to increase electron energy. Electron linear accelerators are divided into low-energy machines (4-6MeV), medium-energy machines (8-14MeV), and high-energy machines (15-25MeV) according to different application energy areas. In low-energy machines and some medium-energy machines, high-power microwaves are generated by magnetron self-excited oscillators, while in some medium-energy machines and high-energy machines, high-power microwaves are amplified by klystron amplifiers that amplify the low-power signals output by microwave excitation sources. generated after. [0003] Electron linear accelerators can be divided into standing wave accelerators and traveling wave accelerator...

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Application Information

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IPC IPC(8): H03K3/78H03K5/00H03L7/00
Inventor 金卫东
Owner 成都利尼科医学技术发展有限公司
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