THEORY, DESIGN AND PERFORMANCE OF A RING CIRCULATOR

Abstract

A compact, symmetrical, three-port S-band circulator composed of reciprocal tee junctions and nonreciprocal phase shifters is investigated theoretically, and its experimental performance results are presented. The comparison of these results demonstrates that (1) circulators can be designed and their experimental performance described from a network model and (2) there is no theoretical limitation on the minimum amount of total differential phase shift necessary for perfect circulation. Bandwidth is investigated and techniques are discussed, including the introduction of a 'backward wave' phase shifter, for achieving larger bandwidths. The stripline, nonreciprocal, comb- filter phase shifter used in the ring circulator is described and performance results are given.

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Document Details

Document Type
Technical Report
Publication Date
Jan 17, 1967
Accession Number
AD0650582

Entities

People

  • Jeffrey A. Weiss
  • S. D. Ewing Jr.

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Bandwidth
  • Buildings And Structures
  • Capacitance
  • Comb Filters
  • Equivalent Circuits
  • Experimental Data
  • Filters
  • Frequency
  • Impedance
  • Insertion Loss
  • Materials
  • Phase Shift
  • Ring Networks
  • Scattering
  • Waves

Fields of Study

  • Physics

Readers

  • Microwave Engineering.