A hollow light-weight, low-cost, and high-performance 3D Luneburg lens structure using partially-metalized thin film, string, threads, fiber or wire base metamaterial to implement the continuously varying relative permittivity profile, characteristic of Luneburg lens structures, is disclosed. The hollow light-weight lens structure is based on the effective medium approach and may be implemented by a number of means. Further, most of the volume of the lens structure is free-space, thus the weight of the lens is significantly less than conventional 3D Luneburg lens structures of the same dimensions.

A hollow light-weight, low-cost, and high-performance 3D Luneburg lens structure using partially-metalized thin film, string, threads, fiber or wire base metamaterial to implement the continuously varying relative permittivity profile, characteristic of Luneburg lens structures, is disclosed. The hollow light-weight lens structure is based on the effective medium approach and may be implemented by a number of means. Further, most of the volume of the lens structure is free-space, thus the weight of the lens is significantly less than conventional 3D Luneburg lens structures of the same dimensions.

A lens antenna module is provided. The lens antenna module includes an array antenna and a plane lens. The array antenna includes multiple antenna elements arranged in an array. The multiple antenna elements are configured to emit/receive electromagnetic waves. The plane lens faces the multiple antenna elements and is located at one side of the multiple antenna elements where the electromagnetic waves are emitted/received. The plane lens is configured to refract the electromagnetic waves, and a refractive index of the plane lens to the electromagnetic waves is gradually varied. An electronic device is further provided in the disclosure.

This application relates to a wireless apparatus, and in particular, to an apparatus that is capable of performing beam sweeping. The apparatus provided in embodiments of this application integrates a feed source that may transmit a wireless signal and a lens. The lens covers the feed source, and an inner surface and/or an outer surface of the lens are/is curved surfaces/a curved surface.

This application relates to a wireless apparatus, and in particular, to an apparatus that is capable of performing beam sweeping. The apparatus provided in embodiments of this application integrates a feed source that may transmit a wireless signal and a lens. The lens covers the feed source, and an inner surface and/or an outer surface of the lens are/is curved surfaces/a curved surface.

An antenna device (1) and an antenna stack (20) comprising at least two antenna devices are disclosed. The antenna device comprises a leaky wave antenna structure comprising a waveguide structure (2) extending in a first plane along a first axis (101), wherein the waveguide structure comprises two opposite end portions (3) along the first axis, and a first feed point and a second feed point arranged at opposite end portions of the waveguide structure. The antenna device further comprises a dispersive lens structure (6) having an edge extending along the waveguide structure in the first plane, the dispersive lens structure having an extension along a second axis (102) extending in the first plane in a second direction perpendicular to the first axis. The waveguide structure further comprises a plurality of discontinuities along an interface between the waveguide structure and the dispersive lens structure for leaking electromagnetic energy into dispersive lens structure.

Provided herein is an artificial dielectric material for use in a focusing lens, comprising a plurality of dielectric tubes supported by one or more dielectric supporting elements which fix and separate the dielectric tubes from each other, wherein a surface of each dielectric tube is at least partially covered by at least one conductive element. Also provided are lenses comprising the artificial dielectric materials and methods for manufacture of such materials. The artificial dielectric materials and lenses may provide desirable dielectric and radio wave focusing properties and manufacturing advantages.

Provided herein is an artificial dielectric material for use in a focusing lens, comprising a plurality of dielectric tubes supported by one or more dielectric supporting elements which fix and separate the dielectric tubes from each other, wherein a surface of each dielectric tube is at least partially covered by at least one conductive element. Also provided are lenses comprising the artificial dielectric materials and methods for manufacture of such materials. The artificial dielectric materials and lenses may provide desirable dielectric and radio wave focusing properties and manufacturing advantages.

A Fresnel phase lens for a 5G antenna is described herein. The Fresnel phase lens includes a glass-ceramic material having a first major surface and a second major surface. The first major surface and the second major surface define a thickness therebetween, and the first major surface defines a plane. The glass-ceramic material includes a first plurality rings having first ring surfaces in the plane and a second plurality of rings having second ring surfaces at a first depth into the thickness and below the plane. The glass ceramic material is transparent to electromagnetic radiation having a frequency of from 20 GHz to 100 GHz.

A Fresnel phase lens for a 5G antenna is described herein. The Fresnel phase lens includes a glass-ceramic material having a first major surface and a second major surface. The first major surface and the second major surface define a thickness therebetween, and the first major surface defines a plane. The glass-ceramic material includes a first plurality rings having first ring surfaces in the plane and a second plurality of rings having second ring surfaces at a first depth into the thickness and below the plane. The glass ceramic material is transparent to electromagnetic radiation having a frequency of from 20 GHz to 100 GHz.