Design of a Cavity-backed Slot Array Unit Cell on Inverted Microstrip Gap Waveguide
Paper i proceeding, 2015

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.

band

planar array

antenna

Författare

Jinlin Liu

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

Abbas Vosoogh

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

Ashraf Uz Zaman

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

Per-Simon Kildal

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

International Symposium on Antennas and Propagation (ISAP)

7447288

Ämneskategorier

Elektroteknik och elektronik

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Senast uppdaterat

2018-08-24