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An Air-filled Cavity-backed 2x2 Slot Sub-array Fed by Inverted Microstrip Gap Waveguide

S. A. Razavi ; Per-Simon Kildal (Institutionen för signaler och system, Antennsystem)
2015 9th European Conference on Antennas and Propagation (EuCAP) (2015)
[Konferensbidrag, refereegranskat]

A wideband 2x2-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 2x2-slot element is considered in an infinite array environment. A sample 32x32 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 56.3-67.9Gz frequency range, i.e. 20.7 % bandwidth.

Nyckelord: gap waveguide, slot antenna array, soft and hard surfaces, EBG surface, substrate integrated waveguide (SIW), Cavity backed, corporate-feed network, array antenna, planar array, band, Engineering, Telecommunications

Denna post skapades 2016-09-22.
CPL Pubid: 242183


Institutioner (Chalmers)

Institutionen för signaler och system, Antennsystem



Chalmers infrastruktur