Microstrip antenna size reduction using feeding structure

Author

Thakur, J.P. ; Park, J.S.

Author_Institution

Sch. of Electr. Eng., Kookmin Univ., Seoul, South Korea

Volume

2

fYear

2005

fDate

4-7 Dec. 2005

Abstract

This paper presents a compact size microstrip patch antenna for L-band application. Overall ∼75% size reduction has been achieved as compare to conventional microstrip antenna for same frequency band. We have designed dual fed microstrip patch antenna to obtain wide frequency band. Branch line coupler is used for 90° phase shift between two vertical feed and equal power coupling. Further, delay line has been designed between branch line coupler and microstrip patch for resonant frequency reduction. We can change the resonant frequency of a microstrip patch by changing the physical parameters of the delay line.

Keywords

antenna feeds; delay lines; microstrip antennas; waveguide couplers; L-band application; branch line coupler; compact size microstrip patch antenna; delay line; dual fed microstrip patch antenna; feeding structure; microstrip antenna size reduction; resonant frequency reduction; wide frequency band; Antenna feeds; Circuit simulation; Coupling circuits; Delay lines; L-band; Loaded antennas; Microstrip antennas; Mobile antennas; Patch antennas; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings

Print_ISBN

0-7803-9433-X

Type

conf

DOI

10.1109/APMC.2005.1606387

Filename

1606387