Novel wideband dielectric loaded gyro traveling wave tube high frequency system
A medium-loading, traveling wave tube technology, applied in millimeter-wave and terahertz devices, microwave fields, can solve the problem that the medium-loading structure cannot simultaneously satisfy the broadband high power output, low output power, etc., to ensure the broadband operating characteristics, High linear gain, the effect of realizing stable operation
A medium-loading, traveling wave tube technology, applied in millimeter-wave and terahertz devices, microwave fields, can solve the problem that the medium-loading structure cannot simultaneously satisfy the broadband high power output, low output power, etc., to ensure the broadband operating characteristics, High linear gain, the effect of realizing stable operation
CN107591306AActive Publication Date: 2018-01-16四川杰诺创科技有限公司
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[0023] The present invention will be further described in detail below with reference to the Ka-band design example and the accompanying drawings. It should be noted that the invention is not limited to this example.
[0024] attached figure 1 , 2 3 and 3 respectively give the three-dimensional structure diagram, axial section diagram and transverse section diagram of the high frequency system of broadband dielectric loaded gyrotraveling wave tube provided by this implementation example. The broadband medium-loaded high-frequency system in the present invention includes a pre-grouping section 1 , a linear amplification section 2 , a nonlinear amplification section 3 , and an output gradient section 4 . The pre-grouping section, the linear amplification section, the nonlinear amplification section, and the output gradual change section include a metal circular waveguide shell, and the inner wall of the circular waveguide is loaded with a ring-shaped non-destructive medium-load...
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The invention discloses a novel wideband dielectric loaded gyro traveling wave tube high frequency system, and belongs to the technical field of microwave, millimeter wave and terahertz devices. The system comprises pre-bunching section, a linear amplification section, a nonlinear amplification section and an output gradual change section which are sequentially connected, and is characterized in that the pre-bunching section, the linear amplification section, the nonlinear amplification section and the output gradual change section comprise a metal circular waveguide shell and an annular lossless dielectric loading waveguide which is loaded in a mode of attaching to the circular waveguide inner wall, the linear amplification section is uniformly provided with rectangular lossy dielectric pieces in the angular direction, and the lossy dielectric pieces are distributed in a periodic manner along the axial direction. Dispersion characteristics of the whole high frequency structure are changed through loading the lossless dielectric waveguide, an electron beam curve and a waveguide dispersion curve are enabled to meet resonance conditions within a wide frequency band range, and wideband operating characteristics are ensured; and meanwhile, a gradually changing output structure is adopted, so that a problem of low output power brought about by low gain of a high frequency point is solved. The system disclosed by the invention not only can meet wideband operating requirements, but also can provide high microwave power output within the frequency band range.
Description
technical field [0001] The invention belongs to the technical field of microwave, millimeter wave and terahertz devices, and in particular relates to a novel high-frequency system of a broadband medium-loaded cyclotron traveling wave tube, which can be applied to cyclotron traveling wave tubes in the millimeter wave and terahertz bands. Background technique [0002] The cyclotron traveling wave tube is a microwave amplifier based on the electronic cyclotron maser effect. It has the ability to generate broadband, high-power, and high-efficiency electromagnetic wave output in the microwave, millimeter wave, and even terahertz frequency bands. It is widely used in microwave communications. systems, millimeter wave countermeasures, millimeter wave imaging systems, etc. At present, the gyrotron traveling wave tube is in a stage of rapid development, and increasing the output power and expanding the frequency bandwidth are the two main development directions. [0003] The interac...
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Patent Timeline
16 Jan 2018
Publication
CN107591306A
- IPC
- H01J23/36
- Inventors
- 王建勋; 李昊