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

antenna

planar array

Författare

Jinlin Liu

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Abbas Vosoogh

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Ashraf Uz Zaman

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Per-Simon Kildal

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

International Symposium on Antennas and Propagation (ISAP)

7447288

Ämneskategorier

Elektroteknik och elektronik