3D printable lightweight porous superstrate for improved radiation performance of antenna

Touseef Hayat, Muhammad U. Afzal, Foez Ahmed, Ali Lalbakhsh, Karu P. Esselle

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

1 Citation (Scopus)


The paper presents a 3D printable porous superstrate (PS) to enhance directive radiation performance of low to medium gain antennas. The PS design process is based on the theory of near-field phase correction. Transmission phase through PS is locally varied by changing sizes of perforations in different sections of the PS. The PS is designed for a resonant cavity antenna (RCA) using acrylonitrile butadiene styrene (ABS) filament. With PS the RCA aperture phase is relatively planar and its directivity in boresight direction is increased by 7.2 dB (14.8 dB to 22 dB) along with 8.2 dB reduction in side-lobe levels (SLL) and 31% increase in aperture efficiency.
Original languageEnglish
Title of host publication2020 4th Australian Microwave Symposium (AMS)
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Number of pages2
ISBN (Electronic)9781728110493
ISBN (Print)9781728110509
Publication statusPublished - 1 Feb 2020
Event4th Australian Microwave Symposium, AMS 2020 - Sydney, Australia
Duration: 13 Feb 202014 Feb 2020


Conference4th Australian Microwave Symposium, AMS 2020


  • Additive manufacturing
  • Directivity enhancement
  • Perforated dielectric
  • Phase correction
  • Rapid prototyping


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