Active microstrip antenna for circular polarization

Author

Gautam, Anil Kr ; Benjwal, P. ; Kanaujia, Binod Kr

Author_Institution

Dept. of Electr. & Electr. Eng, G.B. Pant Eng. Coll., Pauri Garhwal, India

fYear

2011

fDate

18-22 Dec. 2011

Firstpage

1

Lastpage

4

Abstract

A new technique for designing the active microstrip antenna for circular polarization is presented. The circular polarization is achieved by four slits and a pair of truncated corner and the operating frequency is electronically controlled by the bias voltage of varactor diodes. Theoretical modal for an antenna is developed using modal expansion cavity model and circuit theory concept. The results are validated with MoM-based simulator and experimental results. A good agreement between the simulated, calculated, and experimental results is obtained. The tuning range is found to be 40.24% and shows about 71% reduction in antenna size as compare to the conventional circular polarized antenna.

Keywords

microstrip antennas; polarisation; MoM-based simulator; active microstrip antenna; circuit theory; circular polarization; expansion cavity model; truncated corner; varactor diode; Microstrip; Microstrip antennas; Polarization; Resonant frequency; Varactors; Active microstrip antenna; Square microstrip antenna; circular polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Week (IAW), 2011 Indian

Conference_Location

Kolkata

Print_ISBN

978-1-4577-1456-6

Type

conf

DOI

10.1109/IndianAW.2011.6264925

Filename

6264925