A Polarization Reconfigurable High Power Microwave Feed
A high-power microwave and feed technology, applied in waveguide horns, electrical components, circuits, etc., can solve problems such as the inability to meet the compactness requirements of the antenna-feeder system, and achieve the effect of compact structure
Active Publication Date: 2017-05-03
INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS
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Problems solved by technology
[0003] With the gradual development of high-power microwaves to high-frequency bands, since the output waveguide of high-power microwave devices is an over-modulated structure, the traditional waveguide feeder technology can no longer meet the compactness requirements of the antenna feeder system. Therefore, the beam waveguide is mainly used as the reflector antenna. Feedline, in order to improve the feeding efficiency of the beam waveguide, it is necessary to control the amplitude and phase distribution of the electric field at the output of the feeder, and the polarization direction of the output beam can be changed in real time according to the application requirements
The existing horn-type high-power microwave feeds are difficult to meet the above requirements
Method used
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[0023] Such as figure 1 As shown, the present invention is composed of a corrugated horn, a first phase correcting mirror, a box body, a second phase correcting mirror, two stepping motors, two circular polarization grids and a dielectric window. The box is evacuated to increase power capacity.
[0024] The corrugated horn is a commonly used horn in the microwave field. It is made of metal and its function is to output the TE of the high-power microwave device. 11 Mode high power microwave conversion to HE 11 Mode and radiate out with a quasi-Gaussian beam.
[0025] The first phase correction mirror is made of metal and is a concave mirror. The surface shape is specially designed. Its function is to irradiate the corrugated horn onto the first phase correction mirror with a Gaussian distribution beam for phase correction to achieve the desired feed. The source output beam cross-sectional amplitude distribution irradiates the second phase correction mirror.
[0026] The second phase ...
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The invention discloses a polarization-reconfigurable high-power microwave feed source. The polarization-reconfigurable high-power microwave feed source comprises a tank body which is internally vacuumized, wherein a combination of a corrugated horn, two phase correcting mirrors and two circular polarization gratings is adopted in the tank body; a polarized wave beam in a left spiral direction / right spiral direction / any polarization direction can be output according to the needs; section amplitude and phase distribution of the output wave beam can be controlled through the design of the phase correcting mirrors. The polarization-reconfigurable high-power microwave feed source is compact in structure, the polarization state of the output wave beam can be converted according to the needs, and section electric field amplitude and phase distribution of the wave beam can be designed, and the polarization-reconfigurable high-power microwave feed source can be widely applied to the fields of a high-power microwave emitting system, a laser emitting system, and the like.
Description
Technical field [0001] The invention belongs to the technical field of high-power microwave antenna feeds, and specifically refers to a high-power microwave feed with reconfigurable output beam polarization. Background technique [0002] High Power Microwave (HPM) technology is an emerging subject field derived from nuclear technology. It is a comprehensive subject combining pulse power technology, relativistic electric vacuum devices, antenna technology and other disciplines. Among them, the role of high-power microwave antennas is to directionally emit high-power microwaves into free space, which plays a key role in high-power microwave systems. [0003] With the gradual development of high-power microwaves to high frequency bands, since the output waveguide of high-power microwave devices is an over-mode structure, the use of traditional waveguide feeder technology can no longer meet the compactness requirements of the antenna feeder system, so the beam waveguide is mainly selec...
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IPC IPC(8): H01Q13/02H01Q15/14H01Q15/24H01Q19/02H01Q19/185
Inventor 徐刚余川许州金晓胡进光施美友陈世韬李才阳
Owner INST OF APPLIED ELECTRONICS CHINA ACAD OF ENG PHYSICS