60 GHz PRGW slot antenna array with small separation and low mutual coupling


A simple and low-cost solution to reduce the coupling between two slot antennas working at 60 GHz is presented. The slot antennas formed in the top plate of printed ridge gap waveguide (PRGW) structure to avoid the losses associated with conventional feeding mechanisms. The coupling reduction of more than 10 dB is achieved by removing a part of the top… (More)


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