Ultra-wideband four-ridge horn antenna capable of adjusting diameter of back cavity
A four-ridged horn, adjustable technology, applied in the field of communication, can solve the problem of large difference in performance of antenna feeding ports, and achieve the effect of good impedance matching and port consistency
Inactive Publication Date: 2020-04-10
NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH
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Problems solved by technology
[0004] The purpose of the present invention is to provide an ultra-wideband four-ridge horn antenna with an adjustable back cavity diameter, which solves the problem that the feeding probes of the dual-polarized ridged horn antenna need to be misaligned, resulting in a large performance difference between the two feed ports of the antenna. question
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[0020] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods.
[0021] Such as Figure 1 ~ Figure 4 As shown, an ultra-wideband four-ridge horn antenna with an adjustable back cavity diameter includes a horn 1 (which can be a conical horn), a ridge waveguide 2, a reflective backplane 3, a radio frequency connector 4, and an adjustment screw 6; the ridge The waveguide 2 is connected to the reflective backplane 3, and the adjustment screw 6 penetrates the reflective backplane 3 and then extends into the back cavity 5 formed by the reflective backplane and the ridge waveguide, and short-circuits with the bottom ends of a pair of ridges in the excitation ridge waveguide 2;
[0022] The ridge waveguide 2 includes a waveguide 2a (which may be a circular waveguide) and four ri...
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The invention discloses an ultra-wideband four-ridge horn antenna capable of adjusting the diameter of a back cavity. The antennacomprises a horn, a ridge waveguide, a reflecting back plate, a radio frequency connector and a pair of adjusting screws capable of adjusting the distance, wherein one end of the ridge waveguide is connected with the reflecting back plate; and the pair of adjusting screws penetrate into the reflecting back plate and then extend into a back cavity formed by the reflecting back plate and the ridge waveguide to be in short-circuit contact with the pair of ridge sheets of the ridge waveguide. In order to avoid the port difference caused by the up-and-down dislocation of two radio frequency connectors, the pair of adjusting screws are additionally arranged at the bottom of the back cavity, the design difficulty of the ultra-wideband four-ridge horn antenna can be greatly reduced, the method is a novel back cavity design method, and the ridged horn antenna can obtain good port standing waves and good port consistency in an ultra-wideband.
Description
technical field [0001] The invention relates to the technical field of communication, in particular to an ultra-wideband four-ridge horn antenna with an adjustable back cavity diameter. Background technique: [0002] With the development of the times and the rapid development of technologies such as electronic countermeasures, electronic reconnaissance, simulated target simulation, and broadband monopulse tracking, it has become an inevitable trend for antennas to require wider frequency bands and variable polarization. Transmit and receive radio signals within range. The horn antenna has the characteristics of high gain, stable directivity, simple structure, and easy processing. It can be fully applied and developed in the above fields. Generally, it can be used as an independent antenna or feed source. However, the operating frequency band of the ordinary waveguide pyramid or conical horn antenna is restricted by the transmission waveguide. In order to make the horn anten...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q13/02H01Q19/10H01Q1/50H01P3/123
CPCH01P3/123H01Q1/50H01Q13/02H01Q19/104
Inventor 陈银言李东明陈西洋
Owner NANJING CHANGFENG AEROSPACE ELECTRONICS SCI & TECH