A Compact Frequency-Reconfigurable Narrowband Microstrip Slot Antenna

Author

Majid, Huda A. ; Rahim, M. Kamal A ; Hamid, M. Rijal ; Ismail, M.F.

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. Malaysia, Skudai, Malaysia

Volume

11

fYear

2012

fDate

7/4/1905 12:00:00 AM

Firstpage

616

Lastpage

619

Abstract

A frequency-reconfigurable microstrip slot antenna is proposed. The antenna is capable of frequency switching at six different frequency bands between 2.2 and 4.75 GHz. Five RF p-i-n diode switches are positioned in the slot to achieve frequency reconfigurability. The feed line and the slot are bended to reduce 33% of the original size of the antenna. The biasing circuit is integrated into the ground plane to minimize the parasitic effects toward the performance of the antenna. Simulated and measured results are used to demonstrate the performance of the antenna. The simulated and measured return losses, together with the radiation patterns, are presented and compared.

Keywords

UHF antennas; antenna radiation patterns; microstrip antennas; microwave antennas; p-i-n diodes; slot antennas; RF p-i-n diode switches; antenna radiation pattern; biasing circuit; compact frequency-reconfigurable narrowband microstrip slot antenna; frequency 2.2 GHz to 4.75 GHz; frequency switching; parasitic effects; return loss measurement; Antenna measurements; Antenna radiation patterns; Frequency measurement; PIN photodiodes; Radio frequency; Slot antennas; Agile narrow band; RF p-i-n diode; microstrip slot antenna (MSA); reconfigurable antenna;

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2012.2202869

Filename

6213476