Antennas having lenses formed of lightweight dielectric materials and related dielectric materials

A technology of dielectric materials and lens antennas, which is applied in the directions of separately energized antenna arrays, independent antenna unit combinations, antenna unit combinations with different polarization directions, etc., which can solve the problem that antenna application is not a solution, and lens increases antenna cost and weight issues of complexity

Pending Publication Date: 2019-08-06
COMMSCOPE TECH LLC
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, lenses may add cost, weight and/or complexity to the antenna and th

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  • Antennas having lenses formed of lightweight dielectric materials and related dielectric materials
  • Antennas having lenses formed of lightweight dielectric materials and related dielectric materials
  • Antennas having lenses formed of lightweight dielectric materials and related dielectric materials

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Embodiment Construction

[0064] Antennas have been developed with multi-beam beamforming networks driving planar arrays of radiating elements, such as Butler substrates. However, multi-beam beamforming networks have several potential disadvantages, including asymmetrical beams and problems associated with port-to-port isolation, loss of gain, and / or narrow bandwidth. Multi-beam antennas have also been proposed using Luneburg lenses, which are multilayer lenses, usually spherical, with dielectric materials having different dielectric constants in each layer. Unfortunately, for many applications, the cost of Luneburg lenses is very high, and antenna systems using Luneburg lenses still have problems in terms of beamwidth stability over a wide frequency band.

[0065] US Patent Publication No. 2015 / 0091767 ("the '767 publication") proposes a multi-beam antenna having: a linear array of radiating elements; and a cylindrical RF lens formed from a composite dielectric material. RF lenses are used to focus t...

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Abstract

The present invention provides lens antennas that include a plurality of radiating elements and a lens positioned to receive electromagnetic radiation from at least one of the radiating elements, thelens comprising a composite dielectric material. The composite dielectric material comprises expandable gas-filled microspheres that are mixed with an inert binder, dielectric support materials such asfoamed microspheres and particles of conductive material that are mixed together.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of U.S. Patent Application Serial No. 15 / 464,442 filed March 21, 2017, claiming priority under 35 U.S.C § 120, and U.S. Patent Application Serial No. 15 / 464,442 claimed in 2016 U.S. Provisional Patent Application Serial No. 62 / 313,406, filed March 25, 2006, which is hereby incorporated by reference in its entirety, under 35 U.S.C § 119. technical field [0003] This invention relates generally to radio communications, and more particularly to lensed antennas for use in cellular and other communications systems. Background technique [0004] Cellular communication systems are well known in the art. In a cellular communication system, a geographical area is divided into a series of areas called "cells", and each cell is served by a base station. A base station may include one or more antennas configured to provide two-way radio frequency ("RF") communication with mobile users ...

Claims

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Application Information

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IPC IPC(8): H01Q19/06H01Q15/08H01Q21/08H01Q21/30H01Q25/00H01Q19/17H01Q21/24H01Q9/28H01Q1/36
CPCH01Q1/36H01Q9/28H01Q15/08H01Q19/062H01Q19/17H01Q21/08H01Q21/24H01Q21/30H01Q25/00
Inventor M·P·加拉格尔C·拉德莱特H·波尔斯
Owner COMMSCOPE TECH LLC
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