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1. (WO2004059791) WIRELESS COMMUNICATION ANTENNA AND WIRELESS COMMUNICATION DEVICE

Pub. No.:    WO/2004/059791    International Application No.:    PCT/JP2003/015884
Publication Date: Fri Jul 16 01:59:59 CEST 2004 International Filing Date: Fri Dec 12 00:59:59 CET 2003
IPC: H01Q 1/24
H01Q 1/38
H01Q 5/10
H01Q 5/15
H01Q 5/321
H01Q 9/14
H01Q 9/16
H01Q 9/28
H04B 1/3822
H04B 1/40
Applicants: SONY CORPORATION

OKUBORA, Akihiko

Inventors: OKUBORA, Akihiko

Title: WIRELESS COMMUNICATION ANTENNA AND WIRELESS COMMUNICATION DEVICE
Abstract:
A wireless communication device provided in an electronic apparatus having a wireless communication function. A wireless communication antenna (1) includes antenna element patterns connected through switches installed on an antenna substrate has resonance frequencies selected by switching the connected states by the switches. Communication circuits (4, 5) are connected to the wireless communication antenna (1) and have mutually different communication bands. A system control section (6) selects either of the communication circuits (4, 5) according to the communication band used, and selects a resonance frequency of the wireless communication antenna.