Patent ID: 11909112
Assignee: CITY UNIVERSITY OF HONG KONG
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A self-filtering, space-time coding, waveguide-driven metasurface antenna comprising:
at least first and second metal layers;
a first dielectric layer interposed between the first and second metal layers;
a plurality of metal vias formed in the first dielectric layer;
a substrate integrated waveguide (SIW) formed from the first and second metal layers and from the metal vias in the first dielectric layer;
a plurality of meta-atoms formed in the first metal layer, each meta-atom including a slot cooperating with two switching elements for switching a meta-atom between an on and off state, wherein each meta-atom behaves as a magnetic dipole antenna element that radiates electromagnetic waves into free space such that propagating guided waves inside the substrate integrated waveguide are converted and molded into arbitrary selected out-of-plane free-space waves in both a frequency domain and a momentum domain.