Patent ID: 9276304
Filing Date: 2016-03-01
CPC Classification: H01P,H01Q

Claim Text:
1. A power combining apparatus, comprising: a waveguide structure; an input waveguide coupled to an input of the waveguide structure, wherein the input waveguide provides a radially directed electric field; and a plurality of input antenna elements arranged in the waveguide structure and coupled to the input waveguide, wherein each of the input antenna elements rotates an electric field vector direction of the electric field from a radial direction to a circumferential direction and comprises a center planar antenna layer, two outer planar antenna layers arranged on opposite sides of the center planar antenna layer, a non-conductive layer between the center planar antenna layer and one of the outer planar antenna layers, and another non-conductive layer between the center planar antenna and the other one of the outer planar antenna layers.