Lens-enhanced communication device

Patent metadata

Field	Value
Publication number	US-11145986-B2
Application number	US-201816233044-A
Country	US
Kind code	B2
Filing date	Dec 26, 2018
Priority date	Dec 26, 2018
Publication date	Oct 12, 2021
Grant date	Oct 12, 2021

Abstract

A communication device includes a first lens, a feeder array, and control circuitry communicatively coupled to the feeder array. The first lens is associated with a defined shape, which further exhibits a defined distribution of dielectric constant. The feeder array includes a plurality of antenna elements that are positioned in proximity to the first lens. The control circuitry equalizes a distribution of a gain from the received first lens-guided beam of input RF signals across the feeder array and different scan directions of the plurality of antenna elements. The equalized distribution of gain is based on the defined distribution of dielectric constant within the first lens and the proximity of the feeder array to the first lens.

First claim

What is claimed is:

1. A communication device, comprising: a first lens having a defined distribution of a dielectric constant; a feeder array comprising a plurality of antenna elements that are positioned at a defined distance from the first lens to receive a first lens-guided beam of input radio frequency (RF) signals through the first lens, wherein the defined distance is less than a focal length of the first lens; and a control circuitry configured to equalize a distribution of a gain from the received first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements based on the defined distribution of the dielectric constant within the first lens and the feeder array to the first lens.

2. The communication device according to claim 1 , wherein the control circuitry is further configured to continuously scan for the received first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements.

3. The communication device according to claim 1 , wherein the control circuitry is further configured to equalize the distribution of the gain based on adjustments in a phase and an amplitude of the received first lens-guided beam of input RF signals.

4. The communication device according to claim 1 , wherein the distribution of the gain of the received first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements is equalized based on a defined shape of the first lens.

5. The communication device according to claim 1 , wherein a defined shape of the first lens is one of a squared lens shape, a rectangular lens shape, or an arbitrary lens shape.

6. The communication device according to claim 1 , wherein the control circuitry is further configured to equalize distribution of a radiation pattern of the received first lens-guided beam of input RF signals from a radiation surplus region to a radiation deficient region of the feeder array for the equalized distribution of the gain from the received first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements.

7. The communication device according to claim 1 , the first lens includes at least one of a defined geometry profile, a defined dielectric profile, a defined refractive index profile, and a defined radiation profile.

8. The communication device according to claim 7 , wherein the defined geometry profile of the first lens corresponds to a physical configuration based on a thickness, a length, a beam diameter, a radius of curvature, and an arrangement of at least one aperture of the first lens.

9. The communication device according to claim 7 , wherein:
the defined dielectric profile of the first lens corresponds to the distribution of the dielectric constant within the first lens, and
the defined dielectric profile is based on at least the dielectric constant, a permittivity, and a variation in concentration of at least one dielectric material in at least one component of the first lens.

10. The communication device according to claim 7 , wherein the defined refractive index profile of the first lens corresponds to a distribution of refractive index along a radial, a principal, or a defined plane of the first lens.

11. The communication device according to claim 7 , wherein the defined radiation profile of the first lens corresponds to a transformation of a radiation pattern or a beam shape over at least one aperture of the first lens.

12. The communication device according to claim 1 , wherein the first lens is a dielectric lens with an inhomogeneous distribution of the dielectric constant that varies along at least one concentric layer of at least one dielectric material.

13. The communication device according to claim 1 , wherein the first lens is a perforated dielectric lens with a homogeneous distribution of the dielectric constant that varies in accordance with each perforation of a plurality of perforations in the first lens.

14. The communication device according to claim 1 , wherein the first lens is a dielectric lens with a plurality of stacked layers, wherein the plurality of stacked layers are arranged such that the distribution of the gain from the received lens-guided beam of input RF signals is equalized across the feeder array of the plurality of antenna elements.

15. The communication device according to claim 1 , wherein the first lens is an off-center lens with at least one mechanically titled module to provide a corresponding angular offset to receive a beam of input RF signals for the feeder array of the plurality of antenna elements.

16. The communication device according to claim 1 , wherein the first lens is positioned such that a first beam of input RF signals that passes through the first lens is guided as the first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements.

17. The communication device according to claim 1 , further comprises a plurality of lenses positioned over a plurality of sub-arrays of the feeder array such that each of the plurality of lenses is aligned along an axis that is orthogonal to a plane of the feeder array.

18. The communication device according to claim 1 , further comprises receiver circuitry that is configured to combine the received first lens-guided beam of input RF signals at the feeder array of the plurality of antenna elements to obtain a feeder output signal.

19. The communication device according to claim 1 , wherein the feeder array is positioned in a plane such that an axis of the first lens is orthogonal to the plane of the feeder array.

20. The communication device of claim 1 , wherein the control circuitry is configured to equalize the gain distribution such that the gain from a radiation pattern of the received first lens-guided beam of input RF signals in a radiation surplus region is less than the gain of a radiation pattern of the received first lens-guided beam of input RF signals in a radiation deficient region.

21. A method, comprising:
in a communication device that comprises a first lens having a defined distribution of dielectric constant:
receiving, by a feeder array of the communication device, a first lens-guided beam of input radio frequency (RF) signals through the first lens, wherein the feeder array comprises a plurality of antenna elements positioned at a defined distance from to the first lens, wherein the defined distance is less than a focal length of the first lens; and
equalizing, by control circuitry of the communication device, a distribution of a gain from the received first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements based on the defined distribution of dielectric constant within the first lens and the defined distance of the feeder array of the plurality of antenna elements from the first lens.

22. The method according to claim 21 , further comprising scanning, by the control circuitry, the first lens-guided beam of input RF signals across the feeder array of the plurality of antenna elements.

Assignees

• Movandi Corp
• Silicon Valley Bank

Inventors

• Rofougaran Ahmadreza
• Besoli Alfred Grau
• Yoon Seunghwan
• Shirinfar Farid
• Gharavi Sam
• Boers Michael
• Rofougaran Maryam
• Adas Enver
• Sridharan Kartik

Classifications

• H01Q21/065

  Patch antenna array · CPC title

• H01Q15/02 Primary

  Refracting or diffracting devices, e.g. lens, prism · CPC title

• H01Q3/2658

  Phased-array fed focussing structure · CPC title

• H01Q1/36

  Structural form of radiating elements, e.g. cone, spiral, umbrella; {Particular materials used therewith}(H01Q1/08, H01Q1/14 take precedence) · CPC title

• H01Q15/08 Primary

  formed of solid dielectric material · CPC title