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Compact UWB monopole antenna with reconfigurable band-notch characteristics

Published online by Cambridge University Press:  04 October 2019

Liping Han Open the ORCID record for Liping Han [Opens in a new window] ,
Jing Chen  and
Wenmei Zhang
Liping Han*
Affiliation:
School of Physics and Electronic Engineering, Shanxi University, Shanxi030006, China
Jing Chen
Affiliation:
School of Physics and Electronic Engineering, Shanxi University, Shanxi030006, China
Wenmei Zhang
Affiliation:
School of Physics and Electronic Engineering, Shanxi University, Shanxi030006, China
*
Author for correspondence: Liping Han, E-mail: hlp@sxu.edu.cn
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Abstract

A compact ultra-wideband (UWB) monopole antenna with reconfigurable band-notch characteristics is demonstrated in this paper. It is comprised of a modified rectangular patch and a defected ground plane. The band-notch property in the WiMAX and WLAN bands is achieved by etching an open-ended slot on the radiating patch and an inverted U-shaped slot on the ground plane, respectively. To obtain the reconfigurable band-notch performance, two PIN diodes are inserted in the slots, and then the notch-band can be switched by changing the states of the PIN diodes. The antenna has a compact size of 0.47 λ1 × 0.27 λ1. The simulated and measured results indicate that the antenna can operate at a UWB mode, two single band-notch modes, and a dual band-notch mode. Moreover, stable radiation patterns are obtained.

Keywords

Band-notchmonopolereconfigurableultra-wideband
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 12 , Issue 3 , April 2020 , pp. 252 - 258
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019

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