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. 23, 2004
Filed:
Sep. 16, 2002
Applicant:
Inventor:
Sung-ho Wang, Seoul, KR;
Assignee:
Berkana Wireless, Inc., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/68 ;
U.S. Cl.
CPC ...
H03F 3/68 ;
Abstract
A power amplifier includes drains and sources of a plurality of transistors connected to each other to produce a plurality of common drains and a plurality of common sources, wherein the common drains are connected at a common drain point and wherein the common drain point is connected via an RF choke to a power supply voltage terminal and wherein the common sources are grounded; an output terminal connected to the RF choke; a plurality of bias terminals each coupled via a resistor to the gate of one of the plurality of transistors wherein each of the gates of the plurality of transistors is also capacitively coupled to a radio frequency input.