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. 04, 2001
Filed:
Apr. 16, 1999
Applicant:
Inventor:
Steven J. Laureanti, Lewisville, TX (US);
Assignee:
Nokia Telecommunications, Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03F 3/60 ; H03F 3/68 ;
U.S. Cl.
CPC ...
H03F 3/60 ; H03F 3/68 ;
Abstract
A power amplifier system for amplifying RF signals includes an RF signal feedback arrangement to compensate for the loss of RF output power from isolation ports of hybrid couplers in the system and reduces heat dissipated at the terminations, e.g., a resistor, or other components of the isolation ports of the hybrid couplers. The amplitude of the signals, which is not realized at either of the output ports of the power divider (one of the hybrid coupler) and/or either of the output ports of the power combiner (one of the hybrid coupler) at the termination of the isolation ports of the hybrid couplers, is fed back into the power amplifier system.