Lens-enhanced communication device
A communication device includes a lens having a defined shape. A feeder array comprising a plurality of antenna elements that are positioned in a specified proximal distance from the lens to receive a lens-guided beam of input radio frequency (RF) signals through the lens. The specified proximal distance is less than a focal length of the lens. The lens covers the feeder array as a radome enclosure. A distribution of a gain from the received lens-guided beam of input RF signals is substantially equalized from a radiation surplus region to a radiation deficient region of the feeder array to increase at least a reception sensitivity of the plurality of antenna elements for at least the lens-guided beam of input RF signals, based on the defined shape of the lens and the specified proximal distance of the feeder array to the lens.
1. A communication device, comprising:
a lens having a defined shape; and
a feeder array comprising a plurality of antenna elements that are positioned in a specified proximal distance from the lens to receive a lens-guided beam of input radio frequency (RF) signals through the lens,
wherein the specified proximal distance is less than a focal length of the lens, and
wherein the lens covers the feeder array as a radome enclosure, and
wherein a distribution of a gain from the received lens-guided beam of input RF signals is substantially equalized from a radiation surplus region to a radiation deficient region of the feeder array to increase at least a reception sensitivity of the plurality of antenna elements for at least the lens-guided beam of input RF signals, based on the defined shape of the lens and the specified proximal distance of the feeder array to the lens, and wherein the radiation surplus region corresponds to a center area of the feeder array and the radiation deficient region corresponds to a plurality of edge areas of the feeder array.
2. The communication device according to claim 1 , further comprising a control circuitry configured to continuously scan for the input RF signals across the feeder array of the plurality of antenna elements.
3. The communication device according to claim 1 , further comprising a control circuitry configured to equalize the distribution of the gain based on adjustments in a phase of the plurality of antenna elements.
4. The communication device according to claim 1 , wherein the distribution of the gain is equalized based on a bell shape of the lens.
5. The communication device according to claim 1 , wherein the lens comprises:
a base,
a first tubular membrane coupled to the base;
a second membrane coupled to the first tubular membrane, the second membrane, wherein first tubular membrane and the second membrane, in conjunction, cause the lens to have a bell shape; and
a support structure coupled to the first tubular membrane, wherein the support structure defines threads that facilitates the coupling of the lens with a system cover.
6. The communication device according to claim 5 , wherein a distance from the base to the second membrane defines a length of the first tubular membrane, wherein the first tubular membrane has a varying cross-section along the length of the first tubular membrane.
7. The communication device according to claim 5 , wherein a distance from the base to the second membrane defines a length of the first tubular membrane, wherein the first tubular membrane has a same cross-section along the length of the first tubular membrane.
8. The communication device according to claim 1 , wherein the distribution of the of the input RF signals is equalized from a radiation surplus region to a radiation deficient region of the feeder array based on a distribution of a dielectric constant of the lens.
9. The communication device according to claim 1 , the lens further has at least one of a defined dielectric profile, a defined geometric profile, a defined refractive index profile, and a defined radiation profile.
10. The communication device according to claim 9 , wherein the defined geometry profile of the lens corresponds to a thickness, a length, a radius of curvature, and an arrangement of at least one aperture of the lens.
11. The communication device according to claim 9 , wherein the defined dielectric profile of the lens corresponds to a distribution of a dielectric constant of the lens.
12. The communication device according to claim 11 , wherein the dielectric constant of the lens varies radially facilitating distribution of the gain of the input RF signals.
13. The communication device according to claim 9 , wherein the defined refractive index profile of the lens corresponds to a distribution of refractive index along a radial, a principal, or a defined plane of the lens.
14. The communication device according to claim 9 , wherein the defined radiation profile of the lens corresponds to a transformation of a radiation pattern or a beam shape over at least one aperture of the lens.
15. The communication device according to claim 1 , wherein the specified proximal distance is less than a focal length of the lens, and wherein the feeder array is positioned in a plane such that a central axis of the lens is orthogonal to the plane of the feeder array.
16. The communication device according to claim 1 , wherein the lens is a dielectric lens with an inhomogeneous distribution of a dielectric constant along at least a second membrane of the lens.
17. A method, comprising:
in a communication device that comprises a lens having a defined shape:
receiving, by a feeder array of the communication device, a lens-guided beam of input radio frequency (RF) signals through the lens, wherein the feeder array comprises a plurality of antenna elements positioned in a specified proximal distance to the lens, wherein the specified proximal distance is less than a focal length of the lens; and
substantially equalizing a distribution of a gain from the received lens-guided beam of input RF signals from a radiation surplus region to a radiation deficient region of the feeder array to increase at least a reception sensitivity of the plurality of antenna elements for at least the lens-guided beam of input RF signals, based on the defined shape of the lens and the specified proximal distance of the feeder array to the lens, and wherein the radiation surplus region corresponds to a center area of the feeder array and the radiation deficient region corresponds to a plurality of edge areas of the feeder array.
18. The method according to claim 17 , further comprising continuously scanning for the input RF signals across the feeder array of the plurality of antenna elements.
19. The method according to claim 17 , further comprising receiving a gain-equalized output signals from the plurality of antenna elements.
20. The method according to claim 19 , further comprising combining the gain-equalized output signals to generate a power-combined output signal.