| US 7,453,405 B2 | ||
| Portable wireless device | ||
| Tomoaki Nishikido, Ishikawa (Japan); Yutaka Saito, Ishikawa (Japan); Yoshio Koyanagi, Kanagawa (Japan); and Kiyoshi Egawa, Tokyo (Japan) | ||
| Assigned to Panasonic Corporation, Osaka (Japan) | ||
| Appl. No. 11/597,706 PCT Filed May 24, 2005, PCT No. PCT/JP2005/009469 § 371(c)(1), (2), (4) Date Nov. 28, 2006, PCT Pub. No. WO2005/117291, PCT Pub. Date Dec. 08, 2005. |
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| Claims priority of application No. 2004-162157 (JP), filed on May 31, 2004. | ||
| Prior Publication US 2007/0216584 A1, Sep. 20, 2007 | ||
| Int. Cl. H01Q 1/24 (2006.01); H01Q 1/38 (2006.01); H01Q 21/00 (2006.01) | ||
| U.S. Cl. 343—702 [343/700 MS; 343/879] | 7 Claims |
| 1. A mobile radio apparatus that performs transmission and reception of radio waves by combining a plurality of antenna elements,
the mobile radio apparatus comprising:
a first antenna element that is arranged along a longer side of a case;
a second antenna element and a third antenna element that are arranged along the longer side of the case and have different
excitation phases from the first antenna element;
a transmission system control section that controls a pattern of radiation directivity by changing a phase difference between
the excitation phase of the first antenna element and the excitation phase of the second antenna element or the third antenna
element; and
a reception system control section that performs adaptive combining of received signals in accordance with a reception state
of the first antenna element, the second antenna element, and the third antenna element.
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