Broadband partially reflecting superstrate-based antenna for 60 GHz applications

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

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In this communication, a broadband low-profile partially reflecting superstrate (PRS)-based antenna is presented for 60 GHz applications. The PRS with an asymmetric pattern of circular metallic patches printed on one side of a thin dielectric slab improves the feed antenna gain from 6.5 to 18.5 dBi. A prototype antenna exhibits a peak gain of 18.8 dBi with a 3 dB gain bandwidth of 16.7%. Simulated and measured radiation patterns of the proposed antenna are highly directive toward broadside over a large operating bandwidth. The prototype antenna is well matched with a measured voltage standing wave ratio (VSWR) below 2 over a frequency range from 55.6 to 69.6 GHz, corresponding to a matching bandwidth of 22.4%. Fabrication limitations and assembly tolerances are also discussed. Overall, the prototype validates the high gain and wideband performance of the proposed antenna. The total area of the PRS is 5.2λ02 and the overall height of the antenna is only 0.66λ 0 at the lowest operating frequency of 55.6 GHz.

Original languageEnglish
Pages (from-to)4854-4859
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Volume67
Issue number7
DOIs
Publication statusPublished - Jul 2019

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