Grounded Frequency Selective Surfaces as W-band Quasi-Optical Filters for Active Millimetre Wave Imaging

Islam Md.saiful, Johan Stiens, Gert Poesen, Irina Jager, Gaetan Koers, Roger Vounckx

Research output: Chapter in Book/Report/Conference proceedingForeword/postscript

Abstract

This paper presents the design, construction and testing of grounded Frequency Selective Surfaces (FSSs) used to eliminate speckle, produced by coherent mm-wave sources. The reflection amplitude and phase of two dimensional periodic arrays of slot FSSs printed on a grounded Roger 4003C substrate are investigated. It is shown that the reflection phase variation as a function of slot length is controlled by the difference in the central resonance frequencies of different FSS arrays. Simulations and measurements results in W-band demonstrate that this parameter can be used to deduce the gradient and to improve the linearity of the reflection phase. The FSSs were simulated by Finite Integral Technique, fabricated with photolithography-etching technique and measured with MVNA
Original languageEnglish
Title of host publicationIEEE
PublisherIEEE Microwave Proceeding
Pages1187-1190
Number of pages4
Volume1
ISBN (Print)978-1-4244-0748-4
Publication statusPublished - 2008

Publication series

Name
Number5

Keywords

  • periodic structures; frequency selective surfaces
  • quasi-optical filters; mm-wave phase shifters;

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