A dual-band Quasi-Yagi wearable antenna with high directivity

Wenzhang Zhang, Yuan Zhuang, Chaoyun Song, Yi Huang, Jiafeng Zhou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)


A Quasi-Yagi wearable antenna is presented in this paper for dual-band operations at WiFi bands with high individual directivities. The proposed antenna structure consists of a single-stage director, two arms of driven elements and a concave parabolic reflector. The measurement results show a directivity of 6.8 dBi with 12% bandwidth at 2.45 GHz and a directivity of 5.3 dBi with 10% bandwidth at 5 GHz, respectively. Both the lower band and the higher band can be tuned by changing the length of the two driven arms with stable radiation patterns. The size of this dual-band antenna is only 55 mm × 48 mm × 0.25 mm. The proposed antenna is promising for the applications of both wireless power transfer and wireless communication for wearable devices.

Original languageEnglish
Title of host publication2018 IEEE MTT-S International Wireless Symposium (IWS)
ISBN (Electronic)9781538663462
Publication statusPublished - 2 Jul 2018
Event2018 IEEE MTT-S International Wireless Symposium - Chengdu, China
Duration: 6 May 201810 May 2018


Conference2018 IEEE MTT-S International Wireless Symposium
Abbreviated titleIWS 2018


  • Dual-band antennas
  • high directivity
  • Quasi-Yagi antenna
  • wearable antennas

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation


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