Direct SAW Frequency Synthesizer,

Abstract

A frequency synthesizer utilizing three elementary direct synthesizers to achieve fast frequency hopping among 219 tones is described. The elementary synthesizers used for the two 9-channel sets of tones consist of a comb generator followed by a surface acoustic wave (SAW) filterbank and a high speed 1 x 9 switch. Although this comb generator plus filterbank synthesizer is limited to cases in which the required frequencies are evenly spaced, this in fact does not prove to be very restrictive. The scheme is conceptually simple, and has significant advantages which are enumerated. Comparison is made with the mixed chirp synthesizer. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Mar 28, 1978
Accession Number
ADA052704

Entities

People

  • Alan J. Budreau
  • Paul H. Carr

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Waves
  • Errors
  • Fabrication
  • Frequency
  • Frequency Agility
  • Frequency Synthesizers
  • Generators
  • Oscillators
  • Precision
  • Spectra
  • Surface Acoustic Wave Devices
  • Surface Acoustic Waves
  • Surface Waves
  • Transducers
  • Ultrasonics
  • Waves

Readers

  • Phased Array Antenna Design.
  • Systems Analysis and Design

Technology Areas

  • Space