Miniaturization of a Fully Metallic Bandpass Frequency Selective Surface for Millimeter-Wave Band Applications

Wai Yan Yong*, Andres Alayon Glazunov

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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This article presents a miniaturized all-metallic bandpass frequency selective surface (FSS) for millimeter-wave (mmWave) applications. The designed FSS is realized as a slot-type element that can be easily incorporated into all-metallic device architectures. The miniaturization is achieved by a convoluted or meander slot structure, i.e., a miniaturization technique borrowed from conventional substrate-based FSS design. It is demonstrated that the proposed FSS element provides a stable and wide bandpass performance from 24.9 to 31.4 GHz for both the transverse electric (TE) and the transverse magnetic (TM) polarizations at the broadside direction (θ = 0°). Adequate performance is maintained at oblique incidence angles up to θ = pm 45°. A 25 × 25-elements FSS array prototype has been manufactured using the cost-effective chemical etching technique and experimentally characterized utilizing a free-space measurement setup. The results demonstrate a remarkably good correlation between simulations and measurements. Hence, the proposed miniaturized FSS represents an excellent potential to realize an all-metallic FSS with low insertion loss, low profile, and wideband performance at low fabrication costs for mmWave applications.

Original languageEnglish
Pages (from-to)1072-1080
Number of pages9
JournalIEEE transactions on electromagnetic compatibility
Issue number4
Early online date16 Jun 2023
Publication statusPublished - Aug 2023


  • Bandpass filtering
  • Bandwidth
  • Capacitance
  • Convolution
  • frequency selective surface (FSS)
  • Millimeter wave communication
  • millimeter-wave (mmWave)
  • Nonhomogeneous media
  • Prototypes
  • Substrates
  • 2023 OA procedure


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