LOW FREQUENCY GYRATOR DEVELOPMENT

Abstract

Electromechanical gyrators were developed over the frequency range from 375 c to 1.1 mc using coupled piezoelectric and piezomagnetic transducers in two designs. Over most of this range, bandwidths of 1 to 3.7% were obtained with power insertion losses bel w 2 db. Single frequency neutralization, by the addition of an inductor or capacitor, yielded isolators with 1 to 2 db power insertion loss in the pass direction and a narrow band of high rejection in the stop direction. By cascading a phase shifter with the EM gyrator and then neutralizing the combination with a parallel resistor, a stop bandwidth comparable to the gyrator pass bandwidth is obtained without adversely affecting the pass direction characteristics. Hall effect gyrators have been fabricated using indium antimonide plates with from 4 to 32 terminals. As expected, efficiency increases with increasing numbers of terminals. (Author)

Document Details

Document Type
Technical Report
Publication Date
Nov 15, 1961
Accession Number
AD0269374

Entities

People

  • C.p. Germano
  • Damian Curran

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Antimonides
  • Bandwidth
  • Capacitors
  • Efficiency
  • Electronic Components
  • Electronic Equipment
  • Frequency
  • Hall Effect
  • Indium
  • Indium Antimonides
  • Inductors
  • Insertion Loss
  • Losses
  • Neutralization
  • Terminals
  • Transducers

Fields of Study

  • Physics

Readers

  • Microwave Engineering.

Technology Areas

  • Microelectronics
  • Microelectronics - Microelectromechanical Systems