A reconfigurable circularly polarized embedded PICA

Author

Soh, H.M. ; Karim, M.F. ; Ong, L.C.

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore (NUS), Singapore, Singapore

fYear

2013

fDate

7-13 July 2013

Firstpage

7

Lastpage

8

Abstract

In this paper, a circularly polarized reconfigurable planar inverted cone antenna (PICA) is designed, fabricated and tested. Generally, PICA antenna shows wider-bandwidth and linear polarization characteristics. However, in order to generate circular polarization, asymmetrical types of two unbalanced circular slots are etched on PICA at angle of 45°. Parametric study is done to determine the optimal dimensions of the slots. The varactor diodes (SMV1232-079LF) are placed on both sides of the PICA to enable the tenability aspects of the antenna. The measurement results show 10dB impedance bandwidth from 2GHz-9GHz at 0V. However, when the diode voltage varies from 1V to 12V, the 10dB impedance bandwidth reduces to 2GHz-4.5GHz.

Keywords

UHF antennas; microwave antennas; planar antennas; varactors; PICA antenna; SMV1232-079LF; antenna tenability aspects; diode voltage; frequency 2 GHz to 9 GHz; impedance bandwidth; linear polarization characteristics; optimal slot dimension; parametric study; planar inverted cone antenna; reconfigurable circularly-polarized embedded PICA; unbalanced circular slots; varactor diodes; voltage 1 V to 12 V; Bandwidth; Broadband antennas; Capacitance; Impedance; Microstrip;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6710664

Filename

6710664