Patent ID: 9553353
Date: 2017-01-24
CPC Classifications: H01L,H01P,H01Q,H05K

Claim:
1. A device for directing extremely high frequency (EHF) electromagnetic radiation, the device comprising: a dielectric substrate assembly comprised of a plurality of conductive layers forming a stair-stepped configuration, including a top conductive layer having a major face, a bottom conductive layer, and a plurality of intermediate conductive layers, the plurality of conductive layers supported in spaced-apart positions by intervening dielectric layers formed in the dielectric substrate assembly, the plurality of intermediate conductive layers each having a major surface with a first perimeter, each first perimeter comprising perimeter portions that are offset relative to each other; and an electromagnetic transducer disposed along a plane of the major face of the top conductive layer and positioned at a vertical offset distance from the major face of the top conductive layer, the transducer having an outer edge positioned proximate to a first step formed by one of the plurality of intermediate conductive layers immediately adjacent to the top conductive layer, wherein each conductive layer represents one step, where a tread length of each step is defined by a horizontal distance extending away from the outer edge of the transducer, such that an edge of each of the plurality of intermediate conductive layers extends beyond an edge of the conductive layer immediately above it when viewed from the top conductive layer to the bottom conductive layer.