A Cassegrain-type Metamaterial Antenna
A metamaterial and antenna technology, applied in the field of communication, can solve the problems of high cost and difficult processing of Cassegrain antennas, and achieve the effect of easy manufacturing and low cost
Active Publication Date: 2016-08-03
KUANG CHI INST OF ADVANCED TECH +1
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is to provide a Cassegrain-type metamaterial antenna with simple processing and low manufacturing cost for the existing Cassegrain antennas that are difficult to process and high in cost
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[0036] Such as Figure 1 to Figure 5 As shown, the Cassegrain-type metamaterial antenna according to the present invention includes a feed source 1 and a reflective element 200 disposed in front of the feed source 1 and a converging metamaterial plate 100, the converging metamaterial plate 100 includes a core layer 10, the The core layer includes at least one core layer sheet 11, the core layer sheet 11 includes a sheet-shaped substrate 13 and a plurality of artificial microstructures 12 arranged on the substrate 13, centered on the center O1 of the substrate, the The refractive index at the same radius on the core layer sheet 11 is the same, and the refractive index gradually decreases as the radius increases, and the line connecting the center O1 and the feed source 1 is perpendicular to the core layer sheet 11 . In the present invention, the feed source 1 is arranged on the central axis of the converging metamaterial 100, that is, the line connecting the feed source and the...
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The invention discloses a Cassegrain type metamaterial antenna which comprises a feed source, a reflection element arranged in front of the feed source and a convergence metamaterail plate arranged at the back of the feed source. The convergence metamaterial plate comprises a core layer which comprises at least one core layer slice layer. The core layer slice layer comprises a slice base material and a plurality of artificial micro structures arranged on the base material. The refraction rate of the position on the core layer slice layer is identical with the center of the base material as the circle center, the refraction rate is reduced gradually with increase of the refraction rate, and the connection line of the circle center and the feed source is perpendicular to the core layer slice layer. By means of the Cassegrain type metamaterial antenna, the slice convergence metamaterial plate replaces the traditional paraboloid face. The Cassegrain type metamaterial antenna is easy to manufacture and process and low in cost.
Description
technical field [0001] The invention relates to the communication field, and more specifically, relates to a Cassegrain-type metamaterial antenna. Background technique [0002] The Cassegrain antenna consists of three parts, namely the main reflector, sub-reflector and radiation source. The main reflector is a paraboloid of revolution, and the secondary reflector is a hyperboloid of revolution. Structurally, one focus of the hyperboloid coincides with the focus of the paraboloid, the focal axis of the hyperboloid coincides with the focal axis of the paraboloid, and the radiation source is located at the other focus of the hyperboloid, as shown in the figure below. It is a reflection of the electromagnetic wave emitted by the radiation source by the sub-reflector, reflecting the electromagnetic wave to the main reflector, and then obtaining a plane wave beam in the corresponding direction after being reflected by the main reflector to achieve directional emission. [0003] ...
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IPC IPC(8): H01Q19/06H01Q19/10H01Q15/02H01Q15/23
Inventor 刘若鹏季春霖岳玉涛尹小明
Owner KUANG CHI INST OF ADVANCED TECH