Compact microstrip circular patch antenna for Wi-Max with double-layered substrate

Author

Sharma, M.M. ; Bajia, N.C. ; Agarwal, Vinita ; Kumawat, Shilpi ; Gupta, Swati ; Yadav, R.P.

Author_Institution

Dept. of ECE, Malaviya Nat. Inst. of Technol., Jaipur

fYear

2008

fDate

21-24 Nov. 2008

Firstpage

236

Lastpage

238

Abstract

A new circular polarization (CP) design for single-feed microstrip patch antennas is presented and studied. The proposed design is much simpler in construction compared to the traditional wide-band patch antenna. For the desired results, two slots are inserted into the patch antenna. Bandwidths as high as 10% are achieved with stable pattern characteristics, such as gain and cross polarization, within its bandwidth. This design technology is achieved by embedding two narrow slots on the microstrip antenna and placing a single feed along the 45deg axis of the circular patch. By properly adjusting the length of the narrow slots, the circular polarization wave can be easily excited. Typical results of the CP microstrip antennas obtained by applying this design method are presented and discussed.

Keywords

WiMax; antenna feeds; microstrip antennas; slot antennas; Wi-Max; circular polarization wave; double-layered substrate; narrow slot antenna; single-feed microstrip patch antenna; Bandwidth; Broadband antennas; Feeds; Geometry; Impedance; Microstrip antenna arrays; Microstrip antennas; Patch antennas; Polarization; Slot antennas; circular polarization; microstrip antenna; narrow slot;

fLanguage

English

Publisher

ieee

Conference_Titel

Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on

Conference_Location

Jaipur

Print_ISBN

978-1-4244-2690-4

Electronic_ISBN

978-1-4244-2691-1

Type

conf

DOI

10.1109/AMTA.2008.4763137

Filename

4763137