Patent Number: 6,297,780

Title: Mobile apparatus with plurality of antennas having different directivities

Abstract: In a mobile apparatus for communication with a satellite, a plurality of antennas having different directivities from each other are provided. A selector circuit is connected between a transmitter circuit and the antennas to select and connect one of the antennas to the transmitter circuit. A control section controls the selector circuit in accordance with a reflected power detected from one of the antennas.

Inventors: Kirisawa; Akihiro (Tokyo, JP)

Assignee: NEC Corporation

International Classification: H01Q 1/36 (20060101); H01Q 11/08 (20060101); H01Q 11/00 (20060101); H01Q 3/24 (20060101); H04B 7/04 (20060101); H04B 7/06 (20060101); G01R 001/24 ()

Expiration Date: 10/02/2018