Accession Number : ADA277832
Title : An Advanced Communications Synthesizer,
Corporate Author : MITRE CORP BEDFORD MA
Personal Author(s) : Scherer, Ernst F.
Report Date : FEB 1994
Pagination or Media Count : 23
Abstract : With the proliferation of smaller and lower cost EHF terminals, the fast-hopping microwave synthesizer subsystem is rapidly becoming the limiting factor for further size and cost reduction. A new approach, based on a high-speed direct digital synthesizer (DDS) and a very fast voltage controlled oscillator (VCO) tracking loop, has yielded a highly integrable design with true low-cost potential. A frequency range of 1 to 20 GHz can be covered by a simple substitution of the VCO module. This advanced synthesizer realization promises a generic solution to a large class of synthesizer requirements, greatly facilitating standardization and promoting modular system concepts. Microwave synthesizer, Direct digital synthesizer, Voltage controlled oscillator, Frequency range.
Descriptors : *VOLTAGE CONTROLLED OSCILLATORS, *FREQUENCY SYNTHESIZERS, *DIGITAL COMMUNICATIONS, APPROACH, COSTS, LOOPS, LOW COSTS, MICROWAVES, REDUCTION, REQUIREMENTS, STANDARDIZATION, TRACKING, VELOCITY, EXTREMELY HIGH FREQUENCY, COMMUNICATION TERMINALS, MODULES(ELECTRONICS), SATELLITE COMMUNICATIONS, RADAR EQUIPMENT.
Subject Categories : Radio Communications
Electrical and Electronic Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE