Wideband full-corporate-feed waveguide continuous transverse stub antenna array

Qingchun You, Y. Lu, Y. You, Yi Wang, Zhang-Cheng Hao, J. Huang

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
744 Downloads (Pure)

Abstract

A Ka-band waveguide continuous transverse stub (CTS) antenna array with full-corporatefeed network is presented in this paper. Multiple section stepped-impedance transformers are used for wideband impedance matching of the radiation slots. The required high-quality quasi-TEM wave excitation is generated by a wideband plane-wave generator (WPWG). Compared with the conventional pillbox structure, the WPWG produces a quasi-TEM wave with more uniform amplitude distribution. By using the combination of these design features, significant increases both in bandwidth and antenna aperture efficiency are achieved. For demonstration, a prototype is designed, fabricated and measured. Excellent agreement is achieved between simulations and measurements. The antenna is matched over the entire Kaband of 26 to 40 GHz. A high antenna aperture efficiency of over 75% and a low cross-polarization of less than -46 dB is achieved over the entire bandwidth. The demonstrated features of wideband, high aperture efficiency and low cross-polarization have great potentials for millimeter-wave applications.
Original languageEnglish
Pages (from-to)76673-76681
Number of pages9
JournalIEEE Access
Volume6
Early online date27 Nov 2018
DOIs
Publication statusPublished - 28 Nov 2018

Keywords

  • Antenna arrays
  • Power dividers
  • Wideband
  • Feeds
  • Apertures
  • Broadband antennas
  • Wideband antenna array
  • continuous transverse stub antenna
  • aperture efficiency
  • wideband plane wave generator
  • full-corporate-feed network

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