Wideband/Dual-band Reconfigurable Filtering Antenna for Wireless Communication Systems

2019 IEEE MTT-S International Wireless Symposium (IWS) Pub Date : 2019-05-19 DOI:10.1109/IEEE-IWS.2019.8803972

Wenfeng Xie, Junfang Wang, Weimin Wang, Yongle Wu, Yuan’an Liu

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引用次数: 4

Abstract

In this paper, a novel reconfigurable wideband/dual-band filtering antenna loaded with coupled lines and stepped-impedance stubs is proposed for Wireless Communication Systems. The proposed antenna consists of a reconfigurable filter and a wideband antenna. In this design, a wideband band pass filter (WBPF) with high selectivity is presented by employing two-section coupled lines, a short-circuit stub, and two open-circuit stepped-impedance stubs. After adding a coupled line, the WBPF is transformed to a dual-band band pass filter (DBPF). A reconfigurable wideband/dual-band filtering antenna is obtained through the integration of the reconfigurable filter and a wide-band monopole antenna. The functions of the filtering antenna are controlled by the PIN diodes. The operating impedance bandwidth of the wideband filtering antenna is from 1.27 to 3.47 GHz, while the dual-band filtering antenna is from 1.25 to 1.88 GHz and from 2.84 to 3.24 GHz. Details of the antenna design are shown, and the simulation for the constructed prototype are also exhibited and discussed.

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用于无线通信系统的宽带/双带可重构滤波天线

本文提出了一种新型的可重构宽带/双带滤波天线，负载耦合线和阶跃阻抗存根，用于无线通信系统。该天线由可重构滤波器和宽带天线组成。在本设计中，采用两段耦合线、一个短路存根和两个开路阶跃阻抗存根，设计了一个高选择性宽带带通滤波器(WBPF)。在加入耦合线后，WBPF转换为双带带通滤波器(DBPF)。将可重构滤波器与宽带单极天线集成，得到可重构宽带/双带滤波天线。滤波天线的功能由PIN二极管控制。宽带滤波天线的工作阻抗带宽为1.27 ~ 3.47 GHz，双频滤波天线的工作阻抗带宽为1.25 ~ 1.88 GHz和2.84 ~ 3.24 GHz。给出了天线的设计细节，并对构建的样机进行了仿真展示和讨论。

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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来源期刊

2019 IEEE MTT-S International Wireless Symposium (IWS)

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