End-fire antenna array with metamaterial decoupling structures for UAV-borne radar

Christos Milias, Rasmus B. Andersen, Pavlos I. Lazaridis, Zaharias D. Zaharis, Bilal Muhammad, Jes T.B. Kristensen, Albena Mihovska, Dan D.S. Hermansen

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper presents the design and implementation of an X-band, 2D, end-fire antenna array that is suitable for UAV-borne radar applications. The array is synthesized by eight printed Yagi-Uda individual antennas arranged in a 4 x 2 configuration and has a 17dBi gain. Each antenna is fed by a microstrip balun and consists of one driven dipole, one reflector and six directors. Since mutual coupling is detrimental to the performance of phased arrays, metamaterial decoupling structures are utilized to enhance the isolation between them. More specifically, mu-negative meanders are inserted between the elements in the E-plane, while a metasurface of ring resonators isolates the elements in the H-plane. As a result, the inter-element coupling is lower than-30dB. The proposed platform can be easily mounted on unmanned aerial vehicles (UAVs) and is an ideal candidate for UAV-borne radars. Simulations along with measurements verify the effectiveness of our design.

Original languageEnglish
Title of host publication2022 3rd URSI Atlantic and Asia Pacific Radio Science Meeting, AT-AP-RASC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9789463968058
ISBN (Print)9781665499866
DOIs
Publication statusPublished - 6 Jul 2022
Event3rd URSI Atlantic and Asia Pacific Radio Science Meeting - Gran Canaria, Spain
Duration: 29 May 20223 Jun 2022
Conference number: 3

Conference

Conference3rd URSI Atlantic and Asia Pacific Radio Science Meeting
Abbreviated titleAT-AP-RASC 2022
Country/TerritorySpain
CityGran Canaria
Period29/05/223/06/22

Fingerprint

Dive into the research topics of 'End-fire antenna array with metamaterial decoupling structures for UAV-borne radar'. Together they form a unique fingerprint.

Cite this