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. 21, 1993
Filed:
Jun. 20, 1991
David S Wisherd, Sunnyvale, CA (US);
Microwave Modules & Devices, Inc., Mountain View, CA (US);
Abstract
The frequency response of an RF power amplifier in a Cellular Phone Base station is improved by providing a shunt capacitor with the choke coil which interconnects a DC power source to the active device of the amplifier. The cutoff frequency of the bias network can be adjusted so that sum and difference frequencies of multiple-input signals are not attenuated by the feed network thereby permitting the sum and difference frequency signals to be shunted to ground. The linearity and bandwidth of the power amplifier is thus improved.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile