ABSTRACT

In this paper, a novel method is presented for bandwidth enhancement and cross-pol suppression of microstrip-fed slot antenna with circular and vertical wire loops. Two antenna topologies have exhibited 528 and 438 MHz −10 dB bandwidth in comparison with 73 MHz −10 dB bandwidth of reference slot antenna with poor cross-pol. To improve those cross-pol characteristics, we have designed another two antenna topologies, which produced 471 and 615 MHz −10 dB bandwidth in comparison with reference antenna. Cross-pol suppression is achieved by using vertical wire loops. The simulated results were verified with measured results and found excellent agreement.

摘要

本文提出了一种新颖的方法，用于带圆形和垂直线环的微带馈送缝隙天线的带宽增强和交叉极化抑制。与具有较差交叉点的参考缝隙天线的73 MHz -10 dB带宽相比，两种天线拓扑表现出528和438 MHz -10 dB带宽。为了改善这些交叉极化特性，我们设计了另外两种天线拓扑，与参考天线相比，它们产生了471和615 MHz -10 dB带宽。交叉极化抑制是通过使用垂直线环实现的。仿真结果与实测结果吻合较好。