Magnetostatic Wave Resonators,

Abstract

The purpose of this paper is an overview of recent advances about tunable two-port microwave resonators using the propagation of magnetostatic waves. These waves propagate in yttrium iron garnet films grown by liquid phase epitacy on gadolinium gallium garnet substrates. 8 dB insertion loss magnetostatic surface wave resonators have been achieved with a loaded Q close to 450 and an out of band rejection of about 10 dB. By decoupling the resonator from the transducers, Q values greater than 800 can be obtained with 15 dB insertion loss and a rejection of the off-resonance frequencies greater than 10 dB. Volume wave resonators have a higher Q value of about 1200 and 16 dB insertion loss for rejection equal to 4 dB. Some experimental results on metal dot array cavity are presented and limitations related to power saturation, frequency versus temperature variations and off-resonance transmission are discussed. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADP000935

Entities

People

  • Jean Paul Castera
  • Pierre Hartemann

Tags

DTIC Thesaurus Topics

  • Frequency
  • Garnet
  • Insertion Loss
  • Liquid Phases
  • Losses
  • Metals
  • Microwaves
  • Rejection
  • Resonance
  • Resonators
  • Surface Waves
  • Waves
  • Yttrium Iron Garnet

Fields of Study

  • Physics

Readers

  • Electronics Engineering
  • Materials Science and Engineering.

Technology Areas

  • Microelectronics