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:
Nov. 06, 2001
Filed:
Jun. 13, 2000
Applicant:
Inventors:
Assignee:
Matsushita Electric Industrial Co., Ltd., Kadoma, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 1/14 ;
U.S. Cl.
CPC ...
H03F 1/14 ;
Abstract
A power amplifier including: a first amplifier PA,having an input terminal and an output terminal; a passive circuit PC,having an input terminal and an output terminal; and a first switch SW,having a single-pole terminal and two multi-throw terminals, one of the multi-throw terminals of the first switch SW,being connected to the input terminal of the first amplifier PA,and the other of the multi-throw terminals of the first switch SW,being connected to the input terminal of the passive circuit PC,. This makes it possible to provide a power amplifier and a communication unit which can be operated with different frequencies, output powers or modulation types.