A Novel Filtering Antenna with Transversal Coupling Topology

Jianfeng Qian, S. Gao, Hanyang Wang, Hai Zhou
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引用次数: 1

Abstract

A novel structure of filtering antennas, termed as "transversal filtering antenna" (TFA), is introduced in this paper. Different from traditional filtering antennas which employ the ladder filtering structure, TFA employs a transversal coupling topology. Compared to traditional filtering antennas in which only the final stage of the filter antenna is radiating, one important advantage of TFA is that all the resonators in TFA will be radiating simultaneously. By controlling the excitation and radiation behaviors for each radiator, filtering response can be achieved for both S parameters and antenna gain. Flexible control of bandwidth and sharp roll-off of antenna gain can be achieved by using TFA. These novel characteristics bring some very promising possibilities for filtering array antennas designs. To demonstrate the validity of this novel topology, several design examples are presented. One prototype is designed, fabricated, and measured, and the measurement results agree well with the simulations.
一种新型横向耦合拓扑滤波天线
本文介绍了一种新型的滤波天线结构——“横向滤波天线”。与采用阶梯滤波结构的传统滤波天线不同,TFA采用横向耦合拓扑结构。与传统滤波天线只有末级辐射相比,TFA的一个重要优点是所有谐振器同时辐射。通过控制每个辐射体的激励和辐射行为,可以实现S参数和天线增益的滤波响应。利用TFA可以实现带宽的灵活控制和天线增益的急剧滚降。这些新特性为滤波阵列天线的设计带来了一些非常有希望的可能性。为了证明这种新拓扑的有效性,给出了几个设计实例。设计、制作了一台样机并进行了测试,测试结果与仿真结果吻合较好。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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