Design of dual-frequency microstrip antennas using a shorting-pin loading

Author

Shan-Cheng Pan ; Kin-Lu Wong

Author_Institution

Dept. of Electron. Eng., Yung Ta Coll. of Technol. & Commerce, Pingtung, Taiwan

Volume

1

fYear

1998

fDate

21-26 June 1998

Firstpage

312

Abstract

There are several designs of dual-frequency microstrip antennas, such as stacked microstrip antennas, slotted microstrip patch antennas, and dual-mode (operated at TM/sub 10/ and TM/sub 01/, modes) rectangular microstrip patch antennas. These dual-frequency designs, however, show only a moderate frequency ratio (up to about 2.0) between the two operating frequencies. We present several novel designs of single-feed microstrip antennas using a shorting-pin loading technique for providing dual-frequency operation with a relatively large frequency ratio of 2.0/spl sim/4.9. Experimental results for the characteristics of such dual-frequency microstrip antennas are presented and discussed.

Keywords

antenna feeds; antenna testing; microstrip antennas; multifrequency antennas; TM/sub 01/ mode; TM/sub 10/ mode; dual-frequency microstrip antennas; dual-mode antenna; experimental results; frequency ratio; rectangular microstrip patch antennas; shorting-pin loading; single-feed microstrip antennas; slotted microstrip patch antennas; stacked microstrip antennas; Antenna measurements; Antenna radiation patterns; Antennas and propagation; Feeds; Loaded antennas; Microstrip antennas; Patch antennas; Probes; Resonant frequency; Slot antennas;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1998. IEEE

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-4478-2

Type

conf

DOI

10.1109/APS.1998.699142

Filename

699142