Patent Number: 6,295,030

Title: Antenna apparatus and portable radio communication apparatus

Abstract: In an antenna apparatus proposed by the present invention, two inverted-F antennas having the same characteristics are supplied with power with phase difference of 180 degrees respectively. Therefore only radio wave of polarized wave in a predetermined direction can be radiated and deterioration in antenna characteristics due to leak currents can be prevented.

Inventors: Kozakai; Osamu (Chiba, JP), Sawamura; Masatoshi (Saitama, JP)

Assignee: Sony Corporation

International Classification: H01Q 21/28 (20060101); H01Q 1/24 (20060101); H01Q 21/29 (20060101); H01Q 21/00 (20060101); H01Q 9/04 (20060101); H01Q 001/24 (); H01Q 001/38 ()

Expiration Date: 09/25/2018