Varactor-tuned dual-mode frequency discriminator for instantaneous frequency measurements

A. Moscoso-Mártir, I. Molina-Fernández, Jiasheng Hong

Research output: Chapter in Book/Report/Conference proceedingConference contribution


In this paper a novel varactor-tuned frequency discriminator that makes use of two tunable dual-mode microstrip resonators is demonstrated which doubles the discriminator tuning bandwidth. To prove its validity a prototype of the tunable dual-mode microstrip resonator is manufactured and the measured results are used to study the frequency discriminator response. This new approach can cover almost an octave of frequency range from 1.05 to 2 GHz with a sensitivity of 45 V/GHz and 21 V/GHz for the first and second mode, respectively.

Original languageEnglish
Title of host publicationEuropean Microwave Week 2013, EuMW 2013 - Conference Proceedings; EuMC 2013: 43rd European Microwave Conference
Number of pages4
ISBN (Print)9782874870316
Publication statusPublished - 2013
Event43rd European Microwave Conference 2013 - Nuremberg, Germany
Duration: 6 Oct 201310 Oct 2013


Conference43rd European Microwave Conference 2013
Abbreviated titleEuMC 2013


  • dual-mode resonator
  • frequency discriminator
  • Instantaneous frequency measurement (IFM)
  • microstrip resonator
  • tunable resonator

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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