An Air-filled Cavity-backed 2×2 Slot Sub-array Fed by Inverted Microstrip Gap Waveguide
Paper i proceeding, 2015

© 2015 EurAAP. A wideband 2×2-slot element for a 60 GHz antenna array is designed by making use of air filled cavity fed by inverted microstrip gap waveguide. The designed element is a triple layer structure in which the upper layer contains four radiating slots backed by an air-filled cavity. The cavity is excited by a coupling slot fed by an inverted microstrip gap waveguide formed in the air-gap between the middle and lower layers. The designed 2×2-slot element is considered in an infinite array environment. A sample 32×32 slot array aperture is simulated using infinite array approach. The results show that the mismatch is better than -15 dB and the directivity larger than 38 dBi over 56.3-67.9GHz frequency range, i.e. 20.7 % bandwidth.


Seyed Ali Razavi

Graduate University of Advanced Technology

Per-Simon Kildal

Chalmers, Signaler och system, Kommunikations- och antennsystem, Antennsystem

9th European Conference on Antennas and Propagation, EuCAP 2015, Lisbon, Portugal, 13-17 May 2015



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