US 10,483,648 B2 · Cavity-backed annular slot antenna array

Abstract

Cavity backed slot antenna arrays for conformal antenna applications are provided. A cavity backed slot antenna array may include an aperture, first and second feed structures, and a backing cavity configured to support the aperture and the first and second feed structures. The aperture may have a dielectric layer and a metal layer disposed on the dielectric layer. The metal layer may have first and second annular regions. The first annular region may have a first slot region and the second annular region may have a second slot region, where the second slot region may partially overlap the first slot region. The metal layer may further include first and second radiating elements configured to radiate energy. Each of the first and second feed structures may include a central portion and a plurality of fin structures arranged radially around the central portion.

Claims20

Dependent claims

A cavity backed slot antenna array comprising:

an aperture comprising a dielectric layer and a metal layer disposed on the dielectric layer, the metal layer comprising:
a first annular region comprising a first slot region,
a second annular region comprising a second slot region, wherein the second annular region partially overlaps the first annular region, and
first and second radiating elements configured to radiate energy;
a first feed structure configured to excite the first radiating element and a second feed structure configured to excite the second radiating element, each of the first and second feed structures comprising a central portion and a plurality of fin structures arranged radially around the central portion;
and
a backing cavity configured to support the aperture and the first and second feed structures.

4 more elements

Dependencies are inferred from the claim text.

Cavity-backed annular slot antenna array

Life of this patent

Cavity-backed annular slot antenna array

Life of this patent

Abstract

Claims20