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Evaluation of frequency‐selective reflector antenna systems
Author(s) -
Wu T. K.,
Lee S. W.,
Zimmerman M. L.
Publication year - 1993
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650060307
Subject(s) - optics , reflector (photography) , physics , physical optics , antenna (radio) , polarization (electrochemistry) , reflection coefficient , reflection (computer programming) , engineering , computer science , telecommunications , chemistry , programming language , light source
The performance of a four‐frequency‐band (S/X/Ku/Ka) frequency‐selective surface (FSS) with double‐ring elements is evaluated both for a flat panel development and for a curved subreflector in a dual reflector antenna. Good agreement is observed between the measured and computed data for the flat panel FSS. To accurately predict the FSS effects on a dual reflector antenna's radiation pattern, we take into account the FSS subreflector's transmitted/reflected field variation as functions of the polarization and incident angles with respect to the local coordinates. An FSS transmission/reflection coefficient table is computed for TE and TM polarizations at various incident angles based on the planar FSS model. Next, the hybrid geometric optics (GO) and physical optics (PO) technique is implemented with linear interpolation of the FSS table to efficiencly determine the FSS effects in a dual reflector antenna. © 1993 John Wiley & sons, Inc.