A Novel Compact Planar Spiral-shaped Antenna

Authors

  • Bing Xiao The Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054
  • Lei Zhong The Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054
  • Jing-Song Hong The Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054
  • Song-Lin Li The Institute of Applied Physics University of Electronic Science and Technology of China, Chengdu, 610054

Keywords:

circular polarization, planar antenna arrays, spiral antennas, wideband antennas

Abstract

A novel compact spiral antenna with planar feed structure is presented. The proposed antenna is a two-arm Archimedean spiral antenna, which has similar properties of wideband and circular polarization to traditional one. A remarkable improvement of the proposed antenna is the completely planar feed structure. The whole antenna is compact? its spiral diameter is only 23.2mm and the balun is also small. It has an impedance bandwidth of 67% from 4.5GHz to 9GHz and a 4-dB axial-ratio bandwidth of 46.67% ranging from 4.6 GHz to 7.4 GHz. It can be widely used in wideband planar antenna array and other low profile applications.

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Published

2021-10-09

How to Cite

[1]
B. . Xiao, L. . Zhong, J.-S. . Hong, and S.-L. . Li, “A Novel Compact Planar Spiral-shaped Antenna”, ACES Journal, vol. 28, no. 01, pp. 57–63, Oct. 2021.

Issue

2013: Vol 28 Iss 1

Section

General Submission