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