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

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

Authors

  • Xiang Gao
  • M M Awang Kechik
  • Jancar, B
  • Oleg Ovchar
  • Belous, A

Colleges, School and Institutes

External organisations

  • Jozef Stefan Inst
  • VI Vernadskii Institute of General and Inorganic Chemistry Kyiv

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.

Details

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)
Publication statusPublished - 2015

Keywords

  • Permittivity, Ferroelectric, Antennas, tunable antennas

ASJC Scopus subject areas