Switched-Band Vivaldi Antenna

Author

Hamid, M.R. ; Gardner, Peter ; Hall, Peter S. ; Ghanem, F.

Author_Institution

Sch. of Electron., Electr., & Comput. Eng., Univ. of Birmingham, Birmingham, UK

Volume

59

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

1472

Lastpage

1480

Abstract

A novel Vivaldi antenna with added switched band functionality to operate in a wideband or narrowband mode is presented. The antenna reconfiguration is realized by inserting four pairs of switchable ring slots into the ground plane of the structure. A wide bandwidth mode from 1.0-3.2 GHz and three narrowband modes can be selected. A fully functional prototype with PIN diodes switches has been developed. Measured results shows good performance of the proposed designs. The antenna could be a suitable solution for a multimode application requiring wideband and frequency reconfigurable antennas, such as in military applications and cognitive radio.

Keywords

broadband antennas; cognitive radio; p-i-n diodes; PIN diodes switch; antenna reconfiguration; cognitive radio; frequency 1 GHz to 3.2 GHz; ground plane; narrowband mode; switchable ring slot; switched band functionality; switched-band Vivaldi antenna; wideband mode; Broadband antennas; Narrowband; Resonant frequency; Shape; Slot antennas; Switches; Wideband; Antenna; Vivaldi; cognitive radio; reconfigurable; wideband;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2011.2122293

Filename

5723712