Partially shorted MSA for mobile communications

Author

Sohn, Young Youn ; Park, Sung Kyo ; Park, Chong Baek

Author_Institution

Dept. of Electron., Kwangju Polytech. Coll., Kwangju, South Korea

Volume

1

fYear

1999

fDate

1999

Firstpage

518

Abstract

We designed and fabricated microstrip line-fed QMSAs (quarter-wavelength microstrip antennas) partially shorted for the 850 MHz band on various Cu-clad laminate substrates (CHUKOH company), where the width of the radiation patch is identical with that of the ground plane. The resonant frequencies and the return losses due to the electrical thickness were measured by reducing the PSW (partially shorted width) to 0 mm, step by step, when the width of the microstrip line was 1.47 mm, 2.93 mm and 4.4 mm separately. As a result, a good characterized antenna with an 11% reduced resonant length and a return loss -29.44 dB was obtained when the total PSW was in the range of 70% of the width of the radiation patch, compared to the conventional QMSA

Keywords

UHF antennas; antenna accessories; land mobile radio; microstrip antennas; mobile antennas; 29.44 dB; 850 MHz; CHUKOH company; Cu-clad laminate substrates; PSW; design; electrical thickness; fabrication; ground plane; microstrip line; microstrip line-fed QMSA; mobile communications; partially shorted MSA; partially shorted width; quarter-wavelength microstrip antennas; radiation patch; resonant frequencies; resonant length; return loss; return losses; Antenna accessories; Antenna measurements; Electric variables measurement; Frequency measurement; Laminates; Loss measurement; Microstrip antennas; Microstrip components; Mobile communication; Resonant frequency;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 99. Proceedings of the IEEE Region 10 Conference

Conference_Location

Cheju Island

Print_ISBN

0-7803-5739-6

Type

conf

DOI

10.1109/TENCON.1999.818465

Filename

818465