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:
Aug. 14, 2007
Filed:
Feb. 15, 2005
David A. Ksienski, Los Angeles, CA (US);
Keven S. Macgowan, Rancho Palos Verdes, CA (US);
Samuel S. Osofsky, Rancho Palos Verdes, CA (US);
Albert M. Young, Whittier, CA (US);
Thomas T. Tam, Huntington Beach, CA (US);
David A. Ksienski, Los Angeles, CA (US);
Keven S. MacGowan, Rancho Palos Verdes, CA (US);
Samuel S. Osofsky, Rancho Palos Verdes, CA (US);
Albert M. Young, Whittier, CA (US);
Thomas T. Tam, Huntington Beach, CA (US);
The Aerospace Corporation, El Segundo, CA (US);
Abstract
An intermodulation product reduction or cancellation amplifier received two input signals that are split in quadrature wherein the inphase outputs are summed and then amplified as an inphase signal, and the quadrature outputs are fixed-phase phase-shifted, then summed and then amplified as a quadrature signal. The inphase and quadrature signals are fed into an output hybrid for canceling intermodulation products, where the fixed-phase phase shift is +/−60° for reducing 3rd order, +/−36° for reducing 5th order, and +/−25.71° for reducing 7th order intermodulation products, for examples, for improved signal communications of the two signals over a common antenna or link.