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:
Oct. 17, 2006
Filed:
Feb. 28, 2001
Applicants:
Hideaki Nakakubo, Kyoto, JP;
Tomoyuki Iwasaki, Kyoto, JP;
Inventors:
Hideaki Nakakubo, Kyoto, JP;
Tomoyuki Iwasaki, Kyoto, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04B 1/44 (2006.01); H04B 1/46 (2006.01); H01P 1/10 (2006.01); H01P 3/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A radio frequency (RF) switch which is used in an RF unit of a communication apparatus and which has less of an insertion loss during a transmission. A strip line disposed in the RF switch is formed by combining first and second strip lines having different values of characteristic impedance from each other.