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Design of a Cavity-backed Slot Array Unit Cell on Inverted Microstrip Gap Waveguide

Jinlin Liu (Institutionen för signaler och system, Antennsystem) ; Abbas Vosoogh (Institutionen för signaler och system, Antennsystem) ; Ashraf Uz Zaman (Institutionen för signaler och system, Antennsystem) ; Per-Simon Kildal (Institutionen för signaler och system, Antennsystem)
International Symposium on Antennas and Propagation (ISAP) (2015)
[Konferensbidrag, refereegranskat]

Inverted microstrip gap waveguide is advantageous for millimeter wave application because of its low-loss, self-packaging characteristics and cost-effectiveness. In this work a planar gap waveguide slot array is presented. It is fed by a corporate distribution network realized in inverted microstrip gap waveguide. The structure consists of three layers. The top layer contains subarrays of 2 x 2 radiating slots. This is backed by an air-filled groove gap waveguide cavity. This cavity layer is fed by the inverted microstrip gap waveguide distribution network formed in the air-gap between the middle and bottom layer. The paper presents a design of the 2 x 2 subarray, i.e. the unit cell using simulations in an infinite array environment. The simulation results show that the S-11 is below -11 dB over 57-66 GHz frequency band covering 14% bandwidth, and the simulated directivity is about 39 dBi when evaluated for a 32 x 32 element slot array antenna.

Nyckelord: planar array, antenna, band



Denna post skapades 2016-08-26.
CPL Pubid: 240844

 

Institutioner (Chalmers)

Institutionen för signaler och system, Antennsystem

Ämnesområden

Elektroteknik och elektronik

Chalmers infrastruktur