Circularly polarized 2-arm spiral antenna for 60-GHz applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

3 Scopus Citations
View graph of relations

Author(s)

  • Jianfeng Zhu
  • Shaowei Liao
  • Shufang Li

Detail(s)

Original languageEnglish
Pages (from-to)3119-3123
Journal / PublicationMicrowave and Optical Technology Letters
Volume59
Issue number12
Online published22 Sep 2017
Publication statusPublished - Dec 2017

Abstract

A wideband circularly polarized (CP) 2-arm spiral antenna is designed for 60-GHz applications in this letter. The proposed antenna is implemented on a single layer with spiral printed on the top surface of the substrate and fed in a differential way through 2 metallized via holes. Unidirectional radiation is achieved thanks to the presence of the ground plane, which is placed with a distance of one-quarter of the guided wavelength to the spiral. A cavity is mounted on the top of the spiral antenna to suppress the surface wave propagate along the substrate as well as to improve the antenna gain. Experimental results show that the prototype achieves the −10-dB impedance bandwidth from 55.2 to 66 GHz with circular polarization. The peak gain at boresight is 9.5 dBi occurring at 63 GHz and the radiation patterns are stable over the operating frequency band.

Research Area(s)

  • 2-arm spiral antenna, circular polarization, differential feeding, millimeter-wave (mmWave)

Citation Format(s)

Circularly polarized 2-arm spiral antenna for 60-GHz applications. / Zhu, Jianfeng; Liao, Shaowei; Li, Shufang.

In: Microwave and Optical Technology Letters, Vol. 59, No. 12, 12.2017, p. 3119-3123.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review