3/4 lambda wavelength output resonant cavity of radio-frequency broadband high-power valve amplifier

A technology of resonant cavity and electron tube, applied in the field of resonant cavity, can solve the problem of inability to meet the requirements of radio frequency output power and the like

Active Publication Date: 2013-01-02
BEIJING CHANGFENG BROADCASTING COMM EQUIP
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Problems solved by technology

[0003] The invention provides a 3/4λ wavelength output resonance cavity of a radio frequency broadband high-power electron tube ampli

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  • 3/4 lambda wavelength output resonant cavity of radio-frequency broadband high-power valve amplifier
  • 3/4 lambda wavelength output resonant cavity of radio-frequency broadband high-power valve amplifier
  • 3/4 lambda wavelength output resonant cavity of radio-frequency broadband high-power valve amplifier

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Embodiment Construction

[0018] In order to solve the problem that the prior art cannot meet the requirements of radio frequency output power above 70MHz, the present invention provides a radio frequency broadband high power tube amplifier 3 / 4λ wavelength output resonant cavity, the radio frequency broadband high power of the embodiment of the present invention The 3 / 4λ wavelength output resonance cavity of the tube amplifier is designed for the output circuit of the high-power metal-ceramic electronic tetrode amplifier. It is used for power tuning and allocation. The output circuit of the tube amplifier is required to output 250kW RF continuous frequency within the frequency range of 70MHz to 110MHz. Wave power, in the prior art, there is no centralized parameter vacuum capacitor with sufficient power capacity to achieve the above coupling, so the output circuit is tuned and adjusted in the form of a coaxial short-circuit cavity, which is tuned by changing the length of the short-circuit cavity. Can c...

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Abstract

The invention discloses a 3/4 lambda wavelength output resonant cavity of a radio-frequency broadband high-power valve amplifier. The resonant cavity is used for tuning and deploying a radio-frequency broadband high-power valve amplifier output circuit, and comprises a resonant cavity inner conductor, a resonant cavity outer conductor, an output coupling capacitor, an output coupling capacitor tuning device, a radio-frequency output coaxial feeder, a coaxial film direct current blocking capacitor, a resonant cavity short circuit cavity plate and a resonant cavity short circuit cavity plate tuning device. By means of the technical scheme, the maximum output power achieves 100 kilowatts to 250 kilowatts (continuous wave and pulse dual modes), and the working frequency is output at an amplified radio frequency in a range of 70 MHz to 110 MHz, accordingly, necessary conditions are provided for particle acceleration of equipment of nuclear fusion microwave heating equipment, heavy particle accelerators, irradiation accelerators and the like.

Description

technical field [0001] The invention relates to the field of resonant cavity technology, in particular to a 3 / 4λ wavelength output resonant cavity of a radio frequency broadband high-power electron tube amplifier. Background technique [0002] In the prior art, the conventional technical solution of the output resonator is a structure of 1 / 4λ short-circuit resonator + coupling capacitor. The distribution parameters of the electron tube of the output resonator of this structure limit the size of the high-frequency 1 / 4λ wavelength, so it is difficult to High-power transmission is realized, so it cannot meet the requirement of radio frequency output power greater than 70MHz. Contents of the invention [0003] The invention provides a radio frequency broadband high power electron tube amplifier 3 / 4λ wavelength output resonant cavity to solve the problem that the prior art cannot meet the requirement of radio frequency output power above 70MHz frequency. [0004] The present i...

Claims

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Application Information

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IPC IPC(8): H01P7/06H01J23/207
Inventor 魏世东高岷民余才军文睿邵炫姜勇
Owner BEIJING CHANGFENG BROADCASTING COMM EQUIP
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