Improvement of bandwidth in microstrip antennas using parasitic patch

Author

Ketineni, R.V. ; Balaji, U. ; Das, A.

fYear

1992

fDate

18-25 June 1992

Firstpage

1943

Abstract

The improvement in bandwidth when a parasitic element is used along with the short circuit patch has been theoretically analyzed and practically observed. The quarter wave microstrip element is designed for operation at 1.6 GHz with a substrate of dielectric constant 4.8 and thickness 1.6 mm. The bandwidth of the short circuit patch with a 1-m*1-m ground plane mount is 55 MHz; the measured value of the center frequency is 1.587 GHz; the beam width is 86 degrees and its gain is 11.5 dB. The bandwidth of the short circuit patch with the parasitic element with a 1-m*1-m ground plane mount was 204 MHz, and the center frequency was measured as 1.47 GHz, with a beam width of 78 degrees and a gain of 11.6 dB.<>

Keywords

antenna theory; microstrip antennas; 1.47 GHz; 1.6 GHz; 11.5 dB; 11.6 dB; 204 MHz; 55 MHz; UHF; beam width; dielectric constant; gain; ground plane mount; microstrip antennas; parasitic element; parasitic patch; quarter wave microstrip element; short circuit patch; thickness; Antenna measurements; Bandwidth; Educational institutions; Equivalent circuits; Microstrip antennas; Microwave antennas; Receiving antennas; Resonance; Resonant frequency; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE

Conference_Location

Chicago, IL, USA

Print_ISBN

0-7803-0730-5

Type

conf

DOI

10.1109/APS.1992.221490

Filename

221490