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An Open Waveguide by Tightly Coupled Patch Array for Short Range Wireless Access

This paper presents an open waveguide consisting of tightly coupled double layered microstrip resonator array to provide an easy access for wireless devices in short range communications. Electromagnetic wave is concentrated in the waveguide and excitation from wireless devices to the guide is obtained by proximate coupling. The propagation loss in the waveguide is lower than the free space propagation loss, which is demonstrated by numerical simulation for basic elements of the open waveguide.