现代雷达2015，Vol.37Issue(11)：64-68,80,6.DOI:10.16592/j.cnki.1004-7859.2015.011.014
X/Ka双频段宽带极化扭转卡塞格伦天线设计
Design of X/Ka Dual-band and Wide Band Polarization-reversed Cassegrain Antenna
马世娟 1王建 1李敏 1刘华涛1
作者信息
- 1. 电子科技大学电子工程学院, 成都611731
- 折叠
摘要
Abstract
In order to solve low mainlobe gain and high sidelobe gain of the standard Cassegrain antenna, which is introduced by the feed aperture, vice-reflector and strut shielding effect, a polarization-reversion and deformational Cassegrain antenna is proposed in this paper.The shielding effect of vice-reflector and strut is greatly reduced by the polarization selection of the vice-reflector and polarization-reversed of main-reflector.Based on the effective permittivity method, a simple simulation model is established to re-duce the structure of the main-reflector and vice-reflector.The reflectivity and transmittance of vice-reflector and polarization-re-versed rate of main-reflector are analyzed by the electromagnetic simulation software CST.The design of main-reflector and vice-re-flector are analyzed and optimized by the electromagnetic simulation software FEKO.Compared with the results of theoretical calcu-lation and simulation, the test results of the designed polarization-reversed Cassegrain antenna has a similar performance that the bandwidth is 2 GHz, and the sidelobe level of sum pattern is below -20 dB.关键词
双频段/宽频带/极化扭转/卡塞格伦天线Key words
dual-band/wideband/polarization-reversed/Cassegrain antenna分类
信息技术与安全科学引用本文复制引用
马世娟,王建,李敏,刘华涛..X/Ka双频段宽带极化扭转卡塞格伦天线设计[J].现代雷达,2015,37(11):64-68,80,6.
