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Device and method for performing cold test on intermediate resonant cavity of small-size sheet beam klystron

A resonant cavity and strip technology, which is applied in the field of microwave vacuum electronic devices, can solve problems such as inability to use cold testing, and achieve the effects of reducing experimental costs, simple structure, and reducing test difficulty and test cost.

Inactive Publication Date: 2014-09-24
INST OF ELECTRONICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, in the process of realizing the present invention, the applicant found that since there is no test port in the middle resonant cavity of the strip-shaped injection klystron, it cannot be cold-tested by the port method to obtain the frequency characteristics

Method used

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  • Device and method for performing cold test on intermediate resonant cavity of small-size sheet beam klystron
  • Device and method for performing cold test on intermediate resonant cavity of small-size sheet beam klystron
  • Device and method for performing cold test on intermediate resonant cavity of small-size sheet beam klystron

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Embodiment Construction

[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that, in the drawings or descriptions of the specification, similar or identical parts all use the same figure numbers. Implementations not shown or described in the accompanying drawings are forms known to those of ordinary skill in the art. Additionally, while illustrations of parameters including particular values ​​may be provided herein, it should be understood that the parameters need not be exactly equal to the corresponding values, but rather may approximate the corresponding values ​​within acceptable error margins or design constraints. The directional terms mentioned in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., are only referring to the directions of the...

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Abstract

The invention provides a device and a method for performing cold test on an intermediate resonant cavity of a small-size sheet beam klystron. According to the device, the two sides of an intermediate resonant cavity are provided with through holes communicated with the two sides of a resonant cavity body. The device comprises a tuning pin, a test output flange and a vector network analyzer. The narrow end of the tuning pin is inserted into the through hole on the first side of the intermediate resonant cavity to form a cavity wall of the intermediate resonant cavity, and the wide end of the tuning pin is connected with a stepper motor. The test output flange is fixed to the second side of the resonant cavity body, the first side of the test output flange is a rectangular step, is inserted into the second side of the resonant cavity body and is sunk to the bottom, the center of the test output flange is provided with a waveguide hole which has the same size with the cross section of the through hole on the second side of the intermediate resonant cavity, and a first side of the waveguide hole is aligned at the intermediate resonant cavity. A test port of the vector network analyzer is connected to the first side of the waveguide hole in the center of the test output flange. The cold test device of the invention has the advantages of simple structure, small size, low cost and light weight, can be used for testing the tuning characteristics of the intermediate resonant cavity, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of microwave vacuum electronic devices, in particular to a device and method for cold testing the middle resonant cavity of a small-sized strip-shaped injection klystron. Background technique [0002] In the klystron, the characteristics of the resonant cavity are related to the output power and operating bandwidth of the klystron. Cold measurement technology can reflect the characteristics of the resonant cavity and is an important means to verify the design. The input resonant cavity and output resonant cavity of the klystron can be tested by the port method or the probe method. The middle resonant cavity of the klystron has no coupling with the outside, and the probe method is usually used for testing. [0003] The high frequency and compactness of klystrons are the current development trend, and the dimensions of high frequency klystron resonant cavity and electron injection channel are getting smaller a...

Claims

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Application Information

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IPC IPC(8): G01R23/02
Inventor 杨修东阮存军张长青王树忠
Owner INST OF ELECTRONICS CHINESE ACAD OF SCI
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