Patent ID: 11967765
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. An antenna system, comprising:
a first substrate comprising a dielectric material;
a conductive layer on the first substrate defines a feed slot joining a number of side slots arranged in a line forming an antenna array in the conductive layer, the side slots spaced from one another and the antenna array disposed on the first substrate, the side slots elliptical in shape;
a coplanar waveguide configured to launch a signal to the antenna array;
a second substrate comprising a radio frequency printed circuit board, the second substrate spaced away from the first substrate;
a ground plane disposed on the second substrate; and
a number of conducting pillars grounding the conductive layer to the ground plane,
wherein the conductive layer, the ground plane, and the conducting pillars delimit a defined volume waveguide,
wherein the system is configured to generate a radiation pattern of electromagnetic energy from the antenna array and the defined volume waveguide,, wherein the coplanar waveguide is configured for a quasi-transverse electromagnetic (quasi-TEM) mode and the defined volume waveguide is configured for a transverse electric (TE) mode and the radiation pattern results in a hybrid mode as a combination of the quasi-TEM mode and the TE mode.