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:
Dec. 20, 2016
Filed:
Jun. 23, 2015
Murata Manufacturing Co., Ltd., Kyoto, JP;
Hiroyuki Hirooka, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Kyoto, JP;
Abstract
A high-frequency amplifier circuit () includes a high-frequency amplifier () and a bias circuit (). The bias circuit () includes bias control elements (). An emitter of the bias control element () is connected to a base of the amplifier () via a resistor (). An emitter of the bias control element () is connected to a collector of a switch element () via a resistor (). The switch element () is a common emitter. A resistor () is connected between the emitter of the bias control element () and the emitter of the bias control element (). A control voltage (V) is applied to bases of the bias control elements (). A bias current adjustment voltage (V) corresponding to an operation mode is applied to a base of the switch element ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile