A multiband slot CPW antenna using capacitive feed and interdigital capacitor for GSM, WiMAX and WLAN systems

Author

Chomtong, P. ; Akkaraekthalin, P.

Author_Institution

Dept. of Teacher Training in Electr. Eng., King Mongkut´s Univ. of Technol. North Bangkok, Bangkok, Thailand

fYear

2014

Firstpage

446

Lastpage

449

Abstract

This paper proposes a multiband slot CPW antenna using capacitive feed and interdigital capacitor for GSM, WiMAX and WLAN systems. The design is based on coplanar feed slot antenna. It´s the first time to reduce size from λ/4 about λ/8 and control harmonic frequency by using only one technique. In part of slot antenna, interdigital capacitor has been used to improve matching of return loss to be less than 10 dB at all bands. The fabricated antenna has been operated at 1.6-2.48 GHz, 3.3-4.3 GHz, and 4.9-6.0 GHz bands. The experimental results of the fabricated antenna agree very well with simulation expectations using IE3D package.

Keywords

WiMax; cellular radio; coplanar waveguides; multifrequency antennas; slot antennas; waveguide antennas; wireless LAN; GSM systems; IE3D package; WLAN systems; WiMAX systems; capacitive feed; coplanar feed slot antenna; frequency 1.6 GHz to 2.48 GHz; frequency 3.3 GHz to 4.3 GHz; frequency 4.9 GHz to 6 GHz; harmonic frequency; interdigital capacitor; multiband slot CPW antenna; Antenna feeds; Capacitors; Coplanar waveguides; Resonant frequency; Slot antennas; Capacitive feed; Interdigital capacitor; Multiband antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications (APCC), 2014 Asia-Pacific Conference on

Type

conf

DOI

10.1109/APCC.2014.7092854

Filename

7092854