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:
Feb. 24, 2015
Filed:
Mar. 04, 2009
George P. Vella-coleiro, Summit, NJ (US);
Josef Ocenasek, Whippany, NJ (US);
Jeffrey G. Strahler, Grove City, OH (US);
Christopher F. Zappala, Annandale, NJ (US);
George P. Vella-Coleiro, Summit, NJ (US);
Josef Ocenasek, Whippany, NJ (US);
Jeffrey G. Strahler, Grove City, OH (US);
Christopher F. Zappala, Annandale, NJ (US);
Andrew LLC, Hickory, NC (US);
Abstract
In one embodiment, an amplifier system has a tap, a delay filter, a linearized amplifier, and a hybrid combiner. The tapped portion of an input signal is amplified by the amplifier, the untapped portion of the input signal is delayed by the delay filter, and the combiner combines the resulting amplified, tapped portion and the delayed, untapped portion to generate an amplified output signal. By re-combining the delayed, untapped portion of the input signal with the amplified, tapped portion, the power of the untapped portion is not lost, and the amplifier does not have to compensate for all of the distortion that would otherwise be associated with the total output power level. Such an amplifier system is applicable, for example, in upgrading an existing GSM cell site to support both GSM communications as well as UMTS communications without degrading GSM operations.