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:
Jul. 26, 2005
Filed:
Mar. 28, 2003
Robert E. Myer, Denville, NJ (US);
Koon Whye Loh, Mendham, NJ (US);
Loren Francis Root, McHenry, IL (US);
Edward Vincent Louis, Saint Charles, IL (US);
Robert E. Myer, Denville, NJ (US);
Koon Whye Loh, Mendham, NJ (US);
Loren Francis Root, McHenry, IL (US);
Edward Vincent Louis, Saint Charles, IL (US);
Andrew Corporation, Orland Park, IL (US);
Abstract
An amplifier includes a main amplifier circuit and at least one auxiliary amplifier circuit. Portions of an RF signal to be amplified are delivered to the main and auxiliary amplifiers. The auxiliary amplifier circuit is selectively operable to operate in combination with the main amplifier circuit, such as based on the level of the RF signal. At least one hybrid coupler circuit has input ports coupled with outputs of the main amplifier circuit and auxiliary amplifier circuit. The hybrid coupler circuit is operable to combine amplifier circuit output signals at a coupler first output port. A coupler second output port is terminated with one of an electrical short and an electrical open circuit.