Electronically Tunable High-Power Filter for Interference Reduction in Air Force Communication Systems

Abstract

A novel, high-Q, high-power VHF/UHF bandpass filter is described that is electronically tuned according to a binary logic. A high-Q, TEM-line resonator is distributively loaded with N independent capacitive irises, such that the opening and closing of switches within each iris makes its capacitance two-valued. Mathematical modeling and design relations were developed and a working, 512-channel (9 iris) bandpass filter was completed for the range 194 to 359MHz.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1972
Accession Number
AD0748810

Entities

People

  • Arthur Karp
  • William B. Weir

Organizations

  • SRI International

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Analyzers
  • Bandpass Filters
  • Bandwidth
  • Bits
  • Breadboard Models
  • Capacitance
  • Communication Systems
  • Computer Programs
  • Equivalent Circuits
  • Films
  • Frequency
  • Frequency Bands
  • Impedance
  • Measurement
  • Resonance
  • Resonant Frequency

Fields of Study

  • Physics

Readers

  • Computer Programming and Software Development.
  • Microwave Engineering.

Technology Areas

  • Microelectronics