Millimeter-wave low-loss multifeed superstrate-based antenna

Julio Gonzalez Marin*, Affan A. Baba, Jan Hesselbarth, Raheel M. Hashmi, Karu P. Esselle

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

A low-loss multifeed antenna with controlled polarization and beam steering is presented. A low-profile resonant cavity antenna is fed by multiple spherical dielectric resonators (DRs), demonstrating its multifeed capabilities. Each of the DRs are themselves fed from four different sides by microstrip resonators on a planar circuit board. The beam pointing direction and polarization of the antenna are controlled by the signal phases at the respective input ports. Several antennas with varying feed topology are investigated, showing the versatility of this method. A 16-way 34 GHz prototype is built and measured, demonstrating high overall efficiency (considering power combining loss and antenna loss) of 80%.

Original languageEnglish
Pages (from-to)3387-3396
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume68
Issue number5
DOIs
Publication statusPublished - May 2020

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