Three-dimensional printed wideband, dual-cavity Ku-band antenna

Asci Y., YEĞİN K.

International Journal of RF and Microwave Computer-Aided Engineering, vol.30, no.4, 2020 (SCI-Expanded, Scopus) identifier

  • Publication Type: Article / Article
  • Volume: 30 Issue: 4
  • Publication Date: 2020
  • Doi Number: 10.1002/mmce.22071
  • Journal Name: International Journal of RF and Microwave Computer-Aided Engineering
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Applied Science & Technology Source, Communication Abstracts, Compendex, Computer & Applied Sciences, INSPEC, Metadex, Civil Engineering Abstracts
  • Keywords: aperture, bulls eye antenna, cavity, directive gain, Ku band, wideband
  • Uşak University Affiliated: No

Abstract

A novel three-dimensional (3D) printed, wideband, and low cost bull's eye antenna is proposed and designed for Ku-band applications. The proposed antenna covers entire Ku-band satellite communication bands starting from 10.5 GHz to 14.5 GHz. The antenna structure consists of dual-cavity radiating aperture surrounded by a circular groove. With the addition of cavity and corrugation, the antenna gain is increased more than 6 dB. The antenna is fabricated using 3D printing technology and conductive painting. Measurement results indicate that the antenna has 72% fractional bandwidth from 8 GHz to 17 GHz. Measured antenna peak gain is 13.5 dBi at 13 GHz and no less than 11.5 dBi throughout the entire Ku band.