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Dual band‐notched annular monopole antenna with tunable structure for UWB application
Author(s) -
Jeng BoMing,
Luo ChingHsing
Publication year - 2013
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.27609
Subject(s) - monopole antenna , stub (electronics) , j pole antenna , wimax , multi band device , radiation pattern , dipole antenna , acoustics , antenna efficiency , microwave , electrical length , bandwidth (computing) , antenna (radio) , physics , optics , electrical engineering , engineering , telecommunications , wireless
A novel annular monopole antenna with a dual‐band rejection characteristic for ultra‐wideband (UWB) applications is proposed.This antenna comprises an annular‐shape radiating element with a tuning stub and a backside elliptical radiating element that is connected to it by a shorting pin, to create dual‐notched bands at 3.2–4.4 GHz and 4.8–5.9 GHz across the UWB frequency band from 2.5 to 14.5 GHz, to filter the WIMAX and WLAN signals. Measurements demonstrate that the proposed antenna provides a very large bandwidth from 2.5 to 14.5 GHz (141%, voltage standing wave ratio 2). A good monopole‐like radiation pattern except the notched bands is obtained. Details of the proposed antenna design and the simulated results are presented and discussed. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:1546–1549, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27609