Internal Wideband Loop Antenna Using an LC Resonator

Hyengcheul CHOI  Hyeongdong KIM  

Publication
IEICE TRANSACTIONS on Communications   Vol.E94-B   No.4   pp.1081-1084
Publication Date: 2011/04/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E94.B.1081
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Antennas and Propagation
Keyword: 
wideband antenna,  loop antenna,  resonance control,  and mobile handset,  

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Summary: 
This paper presents a wideband technique for a mobile handset antenna. The proposed method inserts a distributed LC resonator into a loop antenna in order to provide non-uniform resonance shifts; without the use of a multi-radiator the bandwidth can be increased from 320 MHz (1900-2220 MHz) to 880 MHz (1750-2630 MHz). As a result of the wide bandwidth and good radiation efficiency, the proposed antenna can be employed in DCS/PCS/WDCMA/Bluetooth mobile handsets.