Reconfigurable RF impedance tuner for match control in broadband wireless devices

Richard B. Whatley, Zhen Zhou, Kathleen L Melde

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

This paper presents the design of a broadband RF impedance tuner that is part of a dynamically reconfigurable automatic match control (AMC) circuit that can be used for a wide variety of wireless devices and intelligent RF front ends. The impedance tuner can be used at the input of wireless devices in order to provide a significantly broader bandwidth or to reconfigure the impedance match spectrum. The tuner uses a microstrip loaded-line circuit topology with multiple stubs that each have a varactor diode located at the end. The results show that the tuner can achieve a broadband impedance match for a wide variety of loads that are either purely resistive or that have a large reactance as well.

Original languageEnglish (US)
Pages (from-to)470-478
Number of pages9
JournalIEEE Transactions on Antennas and Propagation
Volume54
Issue number2
DOIs
StatePublished - Feb 2006

Fingerprint

Electric network topology
Varactors
Microstrip lines
Diodes
Bandwidth
Networks (circuits)

Keywords

  • Automatic match control (AMC)
  • Intelligent RF front ends
  • Reconfigurable tuner

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Cite this

Reconfigurable RF impedance tuner for match control in broadband wireless devices. / Whatley, Richard B.; Zhou, Zhen; Melde, Kathleen L.

In: IEEE Transactions on Antennas and Propagation, Vol. 54, No. 2, 02.2006, p. 470-478.

Research output: Contribution to journalArticle

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