Patent ID: 9209519
Filing Date: 2015-12-08
Classification: H01Q,H05K

Abstract:
1. An electromagnetic wave propagation apparatus that propagates an electromagnetic wave as one of electric power and information between a base station and a terminal, the electromagnetic wave propagation apparatus comprising: a planar propagation medium including a planar conductor, a first planar dielectric, a planar mesh conductor, and a second planar dielectric that are stacked on each other in order; at least one electromagnetic wave input port that functions as a first interface to connect the base station with the planar propagation medium; and an electromagnetic wave interface that is provided on the second planar dielectric and functions as a second interface to connect the terminal with the planar propagation medium, wherein the electromagnetic wave interface includes a planar dielectric board and a plurality of planar conductor patterns disposed in parallel so as to sandwich portions of the dielectric board between adjacent ones of the conductor patterns; wherein the conductor patterns include a first conductor pattern that is disposed closer to the planar propagation medium than the other conductor patterns; wherein the first conductor pattern has a polygonal shape with at least a first corner and a second corner; wherein a first through via is provided between the first conductor pattern and the terminal in a region proximal to the first corner of the first conductor pattern; wherein a first short via is provided to electrically short-circuit the conductor patterns in the region proximal to the first corner of the first conductor pattern; wherein a second through via is provided between the first conductor pattern and the terminal in a region proximal to the second corner of the first conductor pattern; wherein the terminal includes a power receiving circuit connected to the electromagnetic wave interface; and wherein each of the first and second through vias produce reception power and the terminal is configured to synthesize the reception powers supplied with a given phase difference.