Unidirectional Quadrupole Antenna on an Ultra-thin Flexible Substrate for 5G IoT Applications

Rocio Rodriguez-Cano, Richard W. Ziolkowski

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review


In this work, the effects of bending our developed unidirectional quadrupole-based broadside-radiating antenna are studied. The compact, ultra-thin planar structure is bent both along its longitudinal and transversal directions. Bending the structure along the short edge (transversal direction), provides very similar performance to the flat structure. On the other hand, when the structure is bent along the long edge, the resonance frequency of the antenna experiences a slight down shift and its front-to-back ratio (FTBR) decreases a little. Nevertheless, it is demonstrated that the performance is still very acceptable and the quadrupolar system works very well in its planar and both bent states.
Original languageEnglish
Title of host publication2021 IEEE-APS Topical Conference on Antennas and Propagation in Wireless Communications (APWC)
Number of pages3
Publication date2021
Article number9539553
ISBN (Print)978-1-6654-1389-3
ISBN (Electronic)978-1-6654-1388-6
Publication statusPublished - 2021
EventInternational Conference on Electromagnetics in Advanced Applications - Hawaii, Honolulu, United States
Duration: 9 Aug 202113 Aug 2021


ConferenceInternational Conference on Electromagnetics in Advanced Applications
Country/TerritoryUnited States
Internet address


  • Internet-of-Things (IoT)
  • broadside radiation
  • flexible
  • planar antennas
  • unidirectional pattern


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