Perfectly-Matched Bandstop Filters using Lossy Resonators

Abstract

Normal realizations of bandstop resonators with finite unloaded Q suffer from degradation of performance due dissipation loss. In this paper it is shown theoretically that there exists a class of second-order networks which simultaneously exhibit an ideal bandstop resonance, with infinite stopband attenuation, and a perfect match at all frequencies. Theoretical analysis is backed up with experimental results for three different physical realizations.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 2005
Accession Number
ADA537602

Entities

People

  • Andrew C. Guyette
  • Douglas R. Jachowski
  • Ian C. Hunter
  • Roger D. Pollard

Organizations

  • University of Leeds

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Attenuation
  • Bandstop Filters
  • Bandwidth
  • Circuits
  • Dual Mode
  • Electrical Engineering
  • Filters
  • Frequency
  • Losses
  • Networks
  • Notch Filters
  • Radar
  • Resonance
  • Resonant Circuits
  • Resonant Frequency
  • Resonators
  • Transfer Functions

Fields of Study

  • Physics

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Microwave Engineering.