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:
Mar. 16, 2010
Filed:
May. 12, 2008
Kazuki Tateoka, Kyoto, JP;
Masahiko Inamori, Osaka, JP;
Shingo Matsuda, Kyoto, JP;
Kazuhiko Ohashi, Osaka, JP;
Haruhiko Koizumi, Osaka, JP;
Kazuki Tateoka, Kyoto, JP;
Masahiko Inamori, Osaka, JP;
Shingo Matsuda, Kyoto, JP;
Kazuhiko Ohashi, Osaka, JP;
Haruhiko Koizumi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A small, high performance, multifunctional high frequency circuit that is multiband and multimode compatible reduces loss from a switch formed on the output side of a final stage amplification unit. The final stage amplification unit power amplifies an input signal and outputs an amplified signal. A first matching circuit impedance converts the amplified signal input thereto at a first input impedance, and outputs a first impedance-converted signal at a first output impedance. A control unit that generates a control signal denoting signal path selection information. A switch unit selects one of at least two signal paths based on the control signal, passes the first impedance-converted signal at an on impedance through the selected path, and outputs the pass signal. A second matching circuit impedance converts a pass signal input thereto at a second input impedance, and outputs a second impedance-converted signal at a second output.