Miniaturized Tapered Slot Antenna With Signal Rejection in 5–6-GHz Band Using a Balun

Author

Zhu, Fuguo ; Gao, Steven ; Ho, Anthony T S ; Abd-Alhameed, Raed A. ; See, Chan H. ; Li, Jianzhou ; Xu, Jiadong

Author_Institution

Surrey Space Centre, Univ. of Surrey, Guildford, UK

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

507

Lastpage

510

Abstract

A miniaturized elliptically tapered slot antenna fed by a novel balun is proposed for directional ultrawideband (UWB) applications. The feeding configuration consists of a stepped microstrip line and a folded slotline connected with a circular slot. An arc-shaped parasitic strip is printed inside the circular slot. This design achieves the minimization of the physical size and the capability of signal rejection at 5-6 GHz with significant gain suppression of 15 dB. Both simulated and measured results confirm the advantage of the design in reducing the size of the antenna while maintaining the UWB performance with band-notched function.

Keywords

antenna feeds; baluns; microwave antennas; slot antennas; ultra wideband antennas; arc-shaped parasitic strip; balun; band-notched function; circular slot printing; directional UWB application; directional ultrawideband application; folded slotline; frequency 5 GHz to 6 GHz; gain 15 dB; gain suppression; miniaturized elliptically tapered slot antenna fed; signal rejection; stepped microstrip line; Antenna measurements; Frequency measurement; Gain; Microstrip antennas; Slot antennas; Ultra wideband antennas; Band-notched antenna; microstrip line; slotline; tapered slot antenna; ultrawideband (UWB) antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2199276

Filename

6199950