The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 07, 2002
Filed:
Apr. 21, 1999
Keiji Takakusaki, Yokohama, JP;
Matsushita Electric Industrial Co., Ltd, Osaka, JP;
Abstract
The array antenna radio communication apparatus of the present invention combines the outputs of calibration desired signal generator and calibration interference signal generator using combination section When changing the power of the combined calibration signal, it fixes the power of calibration desired signal to avoid phase rotations due to the power control section and changes only the power of the calibration interference signal by power control section. The array antenna radio communication apparatus supplies this combined calibration signal to a plurality of radio circuits simultaneously or alternately and performs reception processing on only the calibration desired signal by received signal processing section and measures reception characteristics.