Two novel negative impedance converters for a UHF RFID antenna

N. Pelin M.H. Salem, Edip Niver

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

Abstract

Novel designs of two different negative impedance converter (NIC) circuits, one is employing bipolar junction transistors (BJTs) and the other is employing junction field effect transistors (JFETs), operating in ultra-high frequency (UHF) band are investigated. The circuits are designed for passive radio-frequency identification (RFID) tag antennas to achieve better matching characteristics. A microstrip dipole antenna with an integrated negative impedance converter designed to cancel out the input capacitance of the antenna at the resonance frequency is designed, simulated, fabricated and measured. Obtained simulation results are compared to those of the same antenna without the NIC circuit and the improvement in operation bandwidth and input reflection coefficient is observed.

Original languageEnglish (US)
Title of host publication2012 IEEE International Symposiumon Antennas and Propagation, APSURSI 2012 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781467304627
DOIs
StatePublished - Jan 1 2012
EventJoint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012 - Chicago, IL, United States
Duration: Jul 8 2012Jul 14 2012

Publication series

NameIEEE Antennas and Propagation Society, AP-S International Symposium (Digest)
ISSN (Print)1522-3965

Other

OtherJoint 2012 IEEE International Symposium on Antennas and Propagation and USNC-URSI National Radio Science Meeting, APSURSI 2012
CountryUnited States
CityChicago, IL
Period7/8/127/14/12

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

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