Patent ID: 11967764
Assignee: WAYMO LLC
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method comprising:
conducting electromagnetic energy via a transmission line on a printed circuit board (PCB);
coupling the electromagnetic energy into a waveguide via an SIW transition, wherein the SIW transition comprises:
a dielectric substrate;
a first metallic layer, wherein a bottom surface of the first metallic layer is coupled to a top surface of the dielectric substrate;
a through-through-hole, wherein the through-through-hole extends through the dielectric substrate and the first metallic layer;
a dielectric layer, wherein a bottom surface of the dielectric layer is coupled to a top surface of the first metallic layer;
a second metallic layer coupled to a top surface of the dielectric layer, wherein the second metallic layer comprises:
a non-conductive opening,
a plurality of feeds, wherein a first end of each feed is located in the non-conductive opening and a second end of each feed is a single-ended termination, and
an impedance transformer;

a third metallic layer coupled to a bottom surface of the dielectric substrate; and
a set of metallic via-through-holes positioned proximate the non-conductive opening in the second metallic layer, wherein the set of metallic via-through-holes electrically couple the second metallic layer to the third metallic layer,

transmitting the electromagnetic energy as a first signal via one or more antennas coupled to the waveguide.