A STUDY OF TRAVELING-WAVE DIRECTIONAL FILTERS WITH WIDEBAND FERRITE TUNING

Abstract

Consideration is given to the possibility of employing ferrite for wideband frequency tuning in a class of narrowband, reflectionless filters employing traveling- ve r son tors. T H ORE ICAL ARGU ENTS ARE PRESENTED FOR CHOOSING A SYMMETRICALLY LOADED CYLINDRICAL RESONATOR AS THE TUN-ABLE RESONATOR FOR THIS FILTER. An experimental model was constructed using the ring geometry. This device has a tu ing env lope with less tha 10 db insertion loss and more than 20% bandwidth at X-band. Suggestions are given regarding possible methods of improving these values, particularly the rather high insertion loss. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1961
Accession Number
AD0267117

Entities

People

  • D.k. Adams

Organizations

  • University of Michigan

Tags

DTIC Thesaurus Topics

  • Bandwidth
  • Directional
  • Frequency
  • Frequency Bands
  • Frequency Shift
  • Geometry
  • Insertion Loss
  • Losses
  • Narrowband
  • Resonators
  • Traveling Waves
  • Waves
  • X Band

Fields of Study

  • Physics

Readers

  • Microwave Engineering.
  • Snow Cover Descriptors for Reptiles and Their Illustrations.