Patent ID: 6542662
Filing Date: 2003-04-01
Classification: H01Q,H03F

Abstract:
An adapter for adapting a quasi-optic grid array to a waveguide having an internal cavity defined by a wave-confining device and that guides a wave propagating in a longitudinal direction, the adapter translating between the fundamental mode of the waveguide and a desired electromagnetic field distribution at the plane of the array, comprising:(a) a first end that is adapted to substantially mate with the waveguide and that defines a first aperture that substantially matches the size of the waveguide cavity and; (b) a second end defining a second aperture that is larger than the first aperture; and (c) a wave-confining structure disposed between the first end and second end, defining a wave-guiding cavity that guides a wave propagating along the longitudinal direction of signal propagation, including a first step configured within the cavity that is a predetermined distance from the first aperture and that creates a spatial discontinuity within the wave-guiding cavity of a predetermined size to create a desired field distribution.