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:
Jan. 17, 2012
Filed:
Oct. 15, 2008
Sotaro Shinkai, Osaka, JP;
Wataru Noguchi, Hyogo, JP;
Hiroyuki Yurugi, Osaka, JP;
Masahiko Nagoshi, Osaka, JP;
Akihiko Shiotsuki, Osaka, JP;
Sotaro Shinkai, Osaka, JP;
Wataru Noguchi, Hyogo, JP;
Hiroyuki Yurugi, Osaka, JP;
Masahiko Nagoshi, Osaka, JP;
Akihiko Shiotsuki, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A steerable antenna includes an radiating antenna element and parasitic antenna elements. Each of the parasitic antenna elements is provided with a pair of PIN diodes. On each of control lines connecting the PIN diodes to a controller, inductors are provided at predetermined intervals on portions of the control line electromagnetically coupled to another steerable antenna. The intervals for providing the inductors is set to such a length that substantially no resonance occurs in a section of the control line between the inductors at an operating frequency of the steerable antenna.