A Ferrite LTCC-Based Monolithic SIW Phased Antenna Array

Ahmed A. Nafe, Farhan A. Ghaffar, Muhammad Fahad Farooqui, Atif Shamim

Research output: Contribution to journalArticlepeer-review

21 Scopus citations

Abstract

In this work, we present a novel configuration for realizing monolithic SIW-based phased antenna arrays using Ferrite LTCC technology. Unlike the current common schemes for realizing SIW phased arrays that rely on surface-mount component (p-i-n diodes, etc) for controlling the phase of the individual antenna elements, here the phase is tuned by biasing of the ferrite filling of the SIW. This approach eliminates the need for mounting of any additional RF components and enables seamless monolithic integration of phase shifters and antennas in SIW technology. As a proof of concept, a two-element slotted SIW-based phased array is designed, fabricated and measured. The prototype exhibits a gain of 4.9 dBi at 13.2 GHz and a maximum E-plane beam-scanning of 28 degrees using external windings for biasing the phase shifters. Moreover, the array can achieve a maximum beam-scanning of 19 degrees when biased with small windings that are embedded in the package. This demonstration marks the first time a fully monolithic SIW-based phased array is realized in Ferrite LTCC technology and paves the way for future larger-size implementations.
Original languageEnglish (US)
Pages (from-to)196-205
Number of pages10
JournalIEEE Transactions on Antennas and Propagation
Volume65
Issue number1
DOIs
StatePublished - Nov 17 2016

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