Title :
Lumped element model approach for the bandwidth enhancement of coupled microstrip antenna
Author :
Saksiri, Wiset ; Krairiksh, Monai
Author_Institution :
Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
The microstrip antenna is suitable for mobile handsets due to its light weight and compactness. Its disadvantage of narrow bandwidth requires improvement for modern wireless communication systems. This paper proposes a lump element model for the analysis of a coupled microstrip antenna and illustrates the appropriate coupling coefficient for bandwidth enhancement. This condition can be achieved by using serration of the coupled microstrip antenna. Return loss of this antenna is analyzed in terms of serration and the obvious characteristics improvement can be observed. It is found to be useful for the practical wireless communication systems.
Keywords :
UHF antennas; antenna radiation patterns; antenna theory; equivalent circuits; losses; microstrip antennas; mobile antennas; mobile handsets; modelling; -10 dB; 1.7 to 2.3 GHz; 660 MHz; bandwidth enhancement; coupled microstrip antenna; coupling coefficient; lumped element model; mobile handsets; return loss; serration; Bandwidth; Broadband antennas; Coupling circuits; Frequency; Microstrip antennas; Mobile antennas; Mobile communication; Mobile handsets; Modems; Wireless communication;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205630
