Accession Number:

ADD019300

Title:

Channelized Receiver-Front-End Protection Circuit Which Demultiplexes Broadband Signals into a Plurality of Different Microwave Signals in Respective Contiguous Frequency Channels, Phase Adjusts and Multiplexes Channels

Descriptive Note:

Patent, Filed 3 Jul 96, patented 17 Nov 98

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1998-11-17

Pagination or Media Count:

14.0

Abstract:

The invention pertains to a channelized protection circuit for protecting the front-end of a receiver from the detrimental effects of interference signals within the bandwidth of received signals is disclosed. The channelized protection circuit comprises a frequency demultiplexer for separating a broadband input signal into a plurality of different signal components in respective contiguous frequency channels a plurality of signal conditioning sub-circuits respectively responsive to the plurality of different signal components for selectively performing a conditioning operation on the plurality of different signal components to produce a plurality of conditioned signal components minimally affected by interference signals from within any of the contiguous frequency channels and a frequency multiplexer having a plurality of contiguous frequency channels for recombining the plurality of conditioned signal components into a composite conditioned signal of original bandwidth and at a sate power level with a minimum amount of interference. Preferably, the channelized protection circuit also includes a first plurality of phase-adjusting circuits for compensating for phase imbalances among the plurality of different signal components, and also includes a second plurality of phase-adjusting circuits for compensating for phase imbalances among the plurality of conditioned signal components.

Subject Categories:

  • Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE