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. 27, 1993
Filed:
Dec. 20, 1991
Roy A Vaninetti, Palm Bay, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A broadband high power amplifier for multifrequency signal applications comprises an N-way power combiner that is arranged to combine a plurality of multi-frequency input signals and provide a combined (complex) signal at its output. The output of the N-way combiner is amplified in a preamplifier stage and supplied therefrom to an M-way power divider. The M-way power divider has a plurality of M output ports from which M subdivided versions of the combined (complex) output signal from the preamplifier are derived. Each of these effectively identical subdivided signals is coupled to a respective one of a plurality of M signal amplifier stages that drive the radial power combiner. Each amplifier stage is a relatively low to moderate gain amplifier stage, so that its amplitude and phase characteristics may be matched with those of the others of the M amplifier stages. Since the phase and amplitude characteristics of the amplifier stages that drive the radial power combiner are matched with one another, the M stage driver is effectively self-isolating, making it unnecessary to use band-limiting isolator components to protect the outputs of the respective driver amplifier stages feeding the radial power combiner.