Offset-feed type satellite television antenna and satellite television receiving system thereof
A satellite TV and receiving system technology, which is applied in antennas, electrical components, gigahertz frequency band transmission, etc., can solve the problems of difficult processing and high cost of satellite TV antennas, and achieve the effect of easy manufacturing and processing and low cost
Active Publication Date: 2012-05-30
KUANG CHI INST OF ADVANCED TECH +1
View PDF4 Cites 10 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
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
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[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 microstructures 12 arranged on the substrate 13, with a certain point as the center of the circle, the core The refractive index at the same radius on the layer is the same, and the refractive index gradually decreases as the radius increases. Coincident, that is, the feed source is not on the central axis of the core layer, which realizes the offset feeding of the antenna. Both the feed source 1 and the metamaterial panel 100 are supported by brackets, which are not shown in the figure, which is not the core of the present i...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses an offset-feed type satellite television antenna, which comprises a metamaterial panel arranged at the rear of a feed source. The metamaterial panel comprises a core layer and a reflection plate arranged on one side surface of the core layer. The core layer comprises at least one core layer sheet layer. The core layer sheet layer comprises a sheet substrate and a pluralityof artificial micro-structures arranged on the substrate. Based on a fixed point as a circle centre, the refractive indexes in the same semi-diameter on the core layer sheet layer are same; the refractive index is gradually reduced along with increasing of semi-diameter; a connection line between the circle centre and the feed source is vertical to the core layer sheet layer; and the circle centre is not superposed with the centre of the core layer sheet layer. According to the offset-feed type satellite television antenna disclosed by the invention, the traditional parabolic antenna is replaced by the sheet metamaterial panel; the antenna is easier to manufacture and process and lower in cost; furthermore, the invention also provides a satellite television receiving system with the offset-feed type 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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
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 INST OF ADVANCED TECH