研究目的
Investigating the design and performance of a single layer broadband reflectarray capable of generating independent reflect beams according to the polarization.
研究成果
The design of a broadband reflectarray operating for polarizing beam splitting was presented, capable of generating independent phase-shifts for both TE and TM polarization simultaneously. A prototype has been manufactured, generating two separate beams with an included angle of 30° between TE and TM polarizations, with both simulated and measured results exhibited.
研究不足
The accuracy of manufacturing the foamed plastic to approximate the air layer was hard to guarantee, and the adhesive was corrosive to foamed plastic, causing measured pattern distortions at extreme frequencies.
1：Experimental Design and Method Selection:
The reflectarray element is designed with two sets of paralleled dipoles overlapping orthogonally on the substrate surface, providing phase compensation for certain polarization.
2：Sample Selection and Data Sources:
A 16x16 elements array is designed, illuminated by a feed horn set above the center of the reflectarray.
3：List of Experimental Equipment and Materials:
The reflectarray is printed on an ARLON substrate (εr=
4：38, tanδ=0025) with an air layer and ground plane. Experimental Procedures and Operational Workflow:
The required phase distributions for both TE and TM polarizations are calculated and applied to the array.
5：Data Analysis Methods:
The radiation patterns are measured in an anechoic chamber and compared with simulation results.
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