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:
Apr. 23, 2002
Filed:
Mar. 15, 2001
Anthony M. Pavio, Paradise Valley, AZ (US);
Lei Zhao, Chandler, AZ (US);
Motorola.Inc., Schaumburg, IL (US);
Abstract
A distributed amplifier ( ) and a method ( ) of operating the distributed amplifier ( ) are provided in accordance with the present invention. The distributed amplifier ( ) comprises an input transmission line ( ), an output transmission line ( ) and N amplifier sections ( ) having a transistor ( ) connected to the input transmission line ( ) and the output transmission line ( ). The distributed amplifier ( ) also comprises N independent biasing sources ( ) configured to provide N independent biasing voltages for each transistor ( ) of the N amplifier sections ( ) for active operation, wherein the distributed amplifier ( ) is configured such that when a first independent biasing voltage of said N independent biasing voltages is modified for a first transistor of a first section of the N amplifier sections, the first transistor of the first section of the N amplifier sections is configured for a non-active operation and an output power of the distributed amplifier ( ) is reduced without a substantial degradation in an efficiency of the distributed amplifier ( ).