High-performance E-band continuous transverse stub array antenna with a 45° linear polarizer

Research output: Contribution to journalArticle

Authors

  • Yang You
  • Yunlong Lu
  • Wen-wen Yang
  • Zhang-cheng Hao
  • Qingchun You
  • Jifu Huang

Colleges, School and Institutes

Abstract

This letter presents a continuous transverse stub (CTS) array antenna with high aperture efficiency, low sidelobes, and cross-polarization characteristics over an E -band. The antenna consists of a full-corporate-feed 32-slot CTS array and a 45° linear polarizer. A multiple-aperture excited parallel-plate waveguide structure works as a linear source generator to generate the quasi-TEM wave with a uniform amplitude distribution over the whole operating band from 71 to 86 GHz. The 45° linear polarizer contains two layers of slots, shifting the linear polarization from the principal E -plane ( φ = 90°) to the intended E -plane ( φ = 135°). The array antenna achieves the low cross polarization and sidelobe level (SLL) while maintaining high aperture efficiency. Measurement results show that the antenna has an aperture efficiency of over 74% with the peak gains of better than 37.9 dBi over the whole E -band, while the far-field SLLs in the intended E - and H -planes approach the ETSI class IV envelope standard.

Details

Original languageEnglish
Pages (from-to)2189-2193
Number of pages5
JournalIEEE Antennas and Wireless Propagation Letters
Volume18
Issue number10
Early online date9 Sep 2019
Publication statusPublished - 4 Oct 2019

Keywords

  • Continuous transverse stub (CTS) array, low sidelobe levels (SLLs), 45° linear polarizer, Antenna arrays, Feeds, Gain, Power dividers, Couplings, Aperture antennas