Title :
Bandwidth enhancement of a compact multiband film-antenna for mobile phones
Author :
Guan, Ning ; Li, Zhanghuan ; DELAUNE, David ; Furuya, Hirotaka ; Ito, Koichi
Author_Institution :
Opt. & Electron. Lab., Fujikura Ltd., Sakura
Abstract :
A film-antenna capable of generating two wide resonant modes for covering the AMPS/GSM bands and the DCS/PCS/ UMTS bands for mobile phones is proposed. The antenna consists of two superimposed radiating arms which can support two resonant modes by themselves. The frequency range of a resonant mode generated by one of the arm is arranged to differ a little with the corresponding mode of the other, at the fundamental and higher-order modes. As a result, the bandwidths at both of the resonant modes are significantly enhanced. The antenna has a dimension of 5times15times40 mm3 and shows fairly good omni-directional radiation patterns at all the operating bands.
Keywords :
antenna radiation patterns; mobile handsets; multifrequency antennas; AMPS-GSM bands; DCS-PCS-UMTS bands; bandwidth enhancement; compact multiband film-antenna; mobile phones; omni-directional radiation patterns; 3G mobile communication; Antenna radiation patterns; Arm; Bandwidth; Distributed control; Frequency; GSM; Mobile handsets; Personal communication networks; Resonance;
Conference_Titel :
Antenna Technology, 2009. iWAT 2009. IEEE International Workshop on
Conference_Location :
Santa Monica, CA
Print_ISBN :
978-1-4244-4395-6
Electronic_ISBN :
978-1-4244-4396-3
DOI :
10.1109/IWAT.2009.4906976
