Miniaturized multi-frequency shared circularly polarized coaxial feed source network
A circular polarization and coaxial feed technology, which is applied in the field of satellite communication, can solve the problems of many components, large axial size, large feed network system size, etc., to avoid multi-frequency wave division structure, simplify composition and structure compact effect
Active Publication Date: 2022-03-18
NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP
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Problems solved by technology
The first method has many components and large axial size, and the second method uses a 3dB bridge, which requires high phase consistency of the two orthogonal polarizations, and it is difficult to achieve better circular polarization performance.
The size of the feed network system using the above two methods is relatively large, which cannot meet the application of small-aperture antennas
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[0029] Below, the present invention will be further described in conjunction with the accompanying drawings and specific embodiments.
[0030] In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art Generally speaking, other drawings can also be obtained based on these drawings on the premise of not paying creative work.
[0031] A miniaturized multi-frequency shared circular polarization coaxial feed network, including a coaxial feed horn, a coaxial circular polarizer, a coaxial transition waveguide, a coaxial orthogonal mode coupler, and a partition orthogonal mode coupler , a high-frequency band blocking filter and a connecting waveguide; the coaxial feed horn is connected to one port of the co...
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The invention discloses a miniaturized multi-frequency shared circularly polarized coaxial feed source network, and belongs to the technical field of satellite communication. A coaxial feed source horn is connected with one port of a coaxial circular polarizer, the other port of the coaxial circular polarizer is connected with a port with a larger diameter of a coaxial transition waveguide, and a port with a smaller diameter of the coaxial transition waveguide is connected with a circular port of a coaxial orthogonal mode coupler. The coaxial feed source horn, the coaxial waveguide circular polarizer, the coaxial transition waveguide and a coaxial inner core circular waveguide of the coaxial orthogonal mode coupler are integrally manufactured and formed, the partition plate orthogonal mode coupler is connected with the coaxial inner core circular waveguide at the rear end of the coaxial orthogonal mode coupler, and two rectangular ports of the partition plate orthogonal mode coupler are both connected with connecting waveguides. And one of the ports is connected with the blocking filter after passing through the connection waveguide. The antenna has the characteristics of integration, small size and excellent performance, and can meet the application of a small-caliber receiving and transmitting common antenna.
Description
technical field [0001] The invention relates to the technical field of satellite communications, in particular to a miniaturized multi-frequency shared circular polarization coaxial feed network. Background technique [0002] The application of satellite communication is becoming more and more extensive. Due to the extreme shortage of frequency resources, the bandwidth of satellite communication reflector antennas can be expanded by using various multiplexing technologies, and satellite communication can realize the common use of multiple frequency bands. These The function is mainly completed by the feed system. At present, satellite communication antennas are developing in the direction of multi-polarization, multi-band, broadband, etc., and at the same time, they must meet the requirements of miniaturization, light weight, and low cost. As a key component of the satellite communication antenna system, the performance of the feed network system is very important, which di...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01Q5/50H01Q15/24H01Q15/14H01Q1/52
CPCH01Q5/50H01Q15/244H01Q1/52H01Q15/14
Inventor 王进吴建明张根生解磊阮云国伍洋银秋华刘胜文张博袁朝晖李振生孙立杰孙焕金
Owner NO 54 INST OF CHINA ELECTRONICS SCI & TECH GRP