Title :
A pentagonal slot antenna with two-circle stack patch for WLAN/WiMAX
Author :
Moeikham, Pichet ; Akkaraekthalin, Prayoot
Author_Institution :
Dept. of Electr. Eng., King Mongkut´´s Univ. of Technol., Bangkok, Thailand
Abstract :
This paper presents a dual wideband slot antenna for WLAN/WiMAX operation. The proposed antenna consists of a radiating pentagonal slot and an exciting two-circle stack patch with a CPW feed. The input impedance matching has been also improved by inserting two slot stubs at the central feed line. The measurement results show the frequency range from 2.3 to 3.75 GHz of the first band and from 4.8 to 6.5 GHz of the second band, which are adequate wide bandwidths for WLAN/WiMAX operations. The radiation patterns of the proposed antenna are nearly omnidirectional in xz plane for all frequency bands. Therefore, this antenna is a good candidate for various short range wireless communication applications.
Keywords :
WiMax; antenna feeds; antenna radiation patterns; broadband antennas; coplanar waveguides; multifrequency antennas; omnidirectional antennas; slot antennas; wireless LAN; CPW feed; WLAN-WiMAX operation; dual-wideband slot antenna; frequency 2.3 GHz to 3.75 GHz; frequency 4.8 GHz to 6.5 GHz; impedance matching; omnidirectional radiation patterns; pentagonal slot antenna; short-range wireless communication applications; two-circle stack patch; Antenna measurements; Coplanar waveguides; Distortion measurement; Frequency measurement; Mobile antennas; WiMAX; WLAN/WiMAX; dual wideband; pentagonal slot antenna;
Conference_Titel :
Intelligent Signal Processing and Communications Systems (ISPACS), 2011 International Symposium on
Conference_Location :
Chiang Mai
Print_ISBN :
978-1-4577-2165-6
DOI :
10.1109/ISPACS.2011.6146068
