Dual-Functional Electrically Small Huygens Antenna System

Wei Lin, Richard W Ziolkowski

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


A dual-functional electrically small Huygens antenna system is introduced for wireless power transfer (WPT) and communication applications at 915 MHz. This dual-functional system is facilitated by using two orthogonally-oriented electrically small Huygens linearly polarized (HLP) dipole subsystems. Each HLP antenna consists of two metamaterial-inspired near field resonant parasitic (NFRP) elements, i.e., the capacitive loaded loop (CLL) and the Egyptian axe dipole (EAD). A rectifier circuit is integrated with one of the HLP antennas to facilitate its function as a rectenna for WPT applications. The other HLP antenna serves the communication applications. Due to the large isolation (> 30 dB) between these two HLP subsystems, their functionalities are independent. A successfully fabricated and measured prototype demonstrates that this highly-integrated dual-functional antenna system has excellent performance characteristics. It is electrically-small (ka < 0.77) and produces unidirectional Huygens (cardioid) broadside realized gain patterns with broad beamwidths. It has a high AC to DC conversion efficiency. The antenna system is an excellent, practical candidate for wireless Internet-of-Things (IoT) applications.

Original languageEnglish (US)
Title of host publicationISAP 2018 - 2018 International Symposium on Antennas and Propagation
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9788957083048
StatePublished - Jan 25 2019
Event2018 International Symposium on Antennas and Propagation, ISAP 2018 - Busan, Korea, Republic of
Duration: Oct 23 2018Oct 26 2018

Publication series

NameISAP 2018 - 2018 International Symposium on Antennas and Propagation


Conference2018 International Symposium on Antennas and Propagation, ISAP 2018
Country/TerritoryKorea, Republic of


  • Cardioid patterns
  • Huygens dipole antennas
  • electrically small antennas
  • near field resonant parasitic (NFRP) antennas
  • wireless power transfer (WPT)

ASJC Scopus subject areas

  • Signal Processing
  • Computer Networks and Communications
  • Instrumentation


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