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A compact circular slot UWB antenna with multimode reconfigurable band‐notched characteristics using resonator and switch techniques
Author(s) -
Li Yingsong,
Li Wenxing,
Ye Qiubo
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28152
Subject(s) - multi band device , multi mode optical fiber , slot antenna , resonator , reconfigurable antenna , antenna (radio) , standing wave ratio , omnidirectional antenna , electronic engineering , microwave , electrical engineering , computer science , engineering , telecommunications , acoustics , physics , antenna efficiency , microstrip antenna , optical fiber
In this article, we propose a circular slot ultrawideband (UWB) antenna with multimode reconfigurable dual band‐notched characteristics. By using a two‐stage T‐shaped stepped impedance resonator (TS‐TSIR) and a parallel stubs loaded resonator (PSLR), dual band‐notched function is achieved to reject worldwide interoperability for microwave access, WLAN, and X‐band signals. The multimode reconfigurable band‐notched characteristic is realized by integrating four switches onto the TS‐TSIR and the PSLR. Simulated and measured results show that this antenna, with multimode reconfigurable characteristics and dual band‐notched function, can operate from 2.7 to 12 GHz (VSWR<2), which includes the entire UWB band. This antenna maintains omnidirectional radiation patterns that is suitable for UWB applications. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:570–574, 2014