X-Band Beacon Reference Cavities

Abstract

The present status of X-band beacon of reference cavities is summarized. There are now available two types, the 1Q22 series made by Westinghouse, and the 1Q26 made by G.E. Both have excellent stability against shock, vibration, and handling. The higher unloaded Q and loaded Q of the 1Q22 gives it a better figure of merit than the 1Q26. However, the accuracy required in the phase of the 4:1 standing wave introduced by the crystal load and the tolerance in the location of the conductance plane of the cavity make the actual frequency errors greater than those expected for operation between matched load and generator.

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1946
Accession Number
ADA801448

Entities

People

  • L. D. Smullin

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Cathode Ray Tubes
  • Climate Change
  • Electron Tubes
  • Electronic Equipment
  • Errors
  • Figure Of Merit
  • Frequency
  • Generators
  • Insertion Loss
  • Measurement
  • Oscillators
  • Resonant Frequency
  • Standards
  • Standing Waves
  • Vibration
  • Waves
  • X Band

Fields of Study

  • Physics

Readers

  • Aerospace Test and Evaluation
  • Microwave Engineering.