Offset-feed satellite television antenna and satellite television reception system with same
A satellite TV, bias-feed technology, applied to antennas, electrical components, transmission in the gigahertz frequency band, etc., can solve the problems of high cost and difficult processing of satellite TV antennas, and achieve the effects of easy manufacturing and low cost.
Active Publication Date: 2013-01-30
KUANG CHI CUTTING EDGE TECH LTD
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Problems solved by technology
[0005] The technical problem to be solved by the present invention is to provide a bias-fed satellite TV antenna with simple processing and low manufacturing cost in view of the defects of difficult processing and high cost of existing satellite TV antennas
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[0035] Such as Figure 1 to Figure 5 As shown, according to the present invention, the offset feed type satellite TV antenna includes a metamaterial panel 100 arranged behind the feed source 1, and the metamaterial panel 100 includes a core layer 10 and a reflector 200 arranged on one side of the core layer. The core layer 10 includes at least one core layer sheet 11, the core layer sheet includes a sheet-shaped substrate 13 and a plurality of artificial hole structures 12 arranged on the substrate 13, and the core layer sheet 11 is refracted according to The rate distribution can be divided into a plurality of band-shaped areas (indicated by H1, H2, H3, H4, H5 respectively in the figure), with a certain point as the center, the refractive index at the same radius on the multiple band-shaped areas is the same, and The refractive index of each band-shaped area gradually decreases with the increase of the radius, and the minimum value of the refractive index of the inner band-sh...
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The invention discloses an offset-feed satellite television antenna. The offset-feed satellite television antenna comprises a metamaterial panel arranged behind a feed source, wherein the metamaterial panel comprises a core layer and a reflection panel; the core layer comprises at least one core-layer sheet layer; each core-layer sheet layer comprises a sheet-shaped substrate and a plurality of artificial pore structures arranged on the substrate and can be divided into a plurality of belt areas according to refractive index distribution; the refractive indexes of places, having the same radius by taking a fixed point as the circle center, of the belt areas are the same; the refractive index of each belt area gradually decreases with the increase of the radius; and for two adjacent belt areas, the minimum value of the refractive index of the belt area at the inner side is less than the maximum value of the refractive index of the belt area at the outer side. According to the offset-feed satellite television antenna disclosed by the invention, the traditional parabolic antenna is replaced with the sheet-shaped metamaterial panel, so that the manufacturing and processing are easier, and the cost is lower. Furthermore, the invention further provides a satellite television reception system with the offset-feed satellite television antenna.
Description
technical field [0001] The invention relates to the communication field, and more specifically, relates to a bias-feed satellite TV antenna and a satellite TV receiving system thereof. Background technique [0002] The traditional satellite TV receiving system is a satellite ground receiving station composed of parabolic antenna, feed source, tuner and satellite receiver. The parabolic dish is responsible for reflecting the satellite signal into the feed and tuner at the focal point. The feed source is a horn set at the focal point of the parabolic antenna to collect satellite signals, also known as a corrugated horn. There are two main functions: one is to collect the electromagnetic wave signal received by the antenna, transform it into a signal voltage, and supply it to the tuner. The second is to perform polarization conversion on the received electromagnetic waves. The high-frequency head LNB (also known as the down-converter) is to down-frequency and amplify the sat...
Claims
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Login to View More IPC IPC(8): H01Q15/00H01Q15/23H01Q19/06H01Q19/10H04N7/20
Inventor 刘若鹏季春霖岳玉涛王今金洪运南
Owner KUANG CHI CUTTING EDGE TECH LTD