SIDELOBE REDUCTION OF A PARABOLIC REFLECTOR WITH AUXILIARY REFLECTORS

被引：9
|
作者：
LAM, PT
LEE, SW
LANG, KC
CHANG, DCD
机构：
[1] UNIV ILLINOIS,DEPT ELECT & COMP ENGN,URBANA,IL 61801
[2] HUGHES AIRCRAFT CO,EL SEGUNDO,CA 90009
来源：
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 1987年 / 35卷 / 12期
关键词：
ANTENNAS - Feed Systems - MATHEMATICAL TECHNIQUES - Geometry;
D O I：
10.1109/TAP.1987.1144056
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A theoretical mode is developed for designing sidelobe reduction of a reflector antenna by adding auxiliary reflectors. The auxiliary reflectors are added either internally (over the main reflector surface) or externally (outside the main reflector surface). Design curves are presented on the size of these auxiliary reflectors vs. feed taper and ratio of focal length to main-reflector diameter to achieve a prescribed sidelobe reduction. Typically, for a 10-dB sidelobe reduction, the diameter of the auxiliary reflector is about a third of the main reflector diameter. 7 refs.
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页码：1367 / 1374
页数：8
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