Influence of Uncertainty in Dielectric Properties on the Design Performance of a Tunable Composite Right/Left Handed Leaky Wave Antenna

Xiang Gao, Timothy Jackson, Peter Gardner, M M Awang Kechik, Jancar, B, Oleg Ovchar, Belous, A

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

Abstract

Uncertainties of the order of8 % in the accuracy of lithography used to define co-planar waveguides on ferroelectric thin films lead to a similar uncertainty in the value of relative permittivity of the film extracted from measurements. When such films are used as the tunable elements in a tunable composite right/left handed leaky wave antenna, such variations of the capacitance of the varactors can lead to a reduction in radiation and total efficiency around of the order of 1 dB in 5 dB due to the appearance of a bandgap in the frequency response.
Original languageEnglish
Title of host publicationProceedings of the 2015 Joint IEEE International Symposium on the Applications of Ferroelectric, International Symposium on Integrated Functionalities and Piezoelectric Force Microscopy Workshop (ISAF/ISIF/PFM)
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages182-185
Number of pages4
DOIs
Publication statusPublished - 2015

Keywords

  • Permittivity
  • Ferroelectric
  • Antennas
  • tunable antennas

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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