Reflector antenna arrangement

Patent metadata

Field	Value
Publication number	US-11088460-B2
Application number	US-201916295401-A
Country	US
Kind code	B2
Filing date	Mar 7, 2019
Priority date	Mar 7, 2018
Publication date	Aug 10, 2021
Grant date	Aug 10, 2021

Abstract

According to an aspect, there is provided an antenna arrangement. Said antenna arrangement comprises two or more feed antennas adapted to transmit and receive radio signals. The two or more feed antennas comprise at least a first feed antenna adapted to operate in a first frequency band and a second feed antenna adapted to operate in a second frequency band, where the first and second frequency bands being discontiguous with each other. Moreover, the antenna arrangement comprises an antenna radome arranged around the two or more feed antennas. Said antenna radome comprises a metallic section implementing an antenna reflector for the two or more feed antennas and a nonmetallic section penetrable by radio waves.

First claim

The invention claimed is:

1. An antenna arrangement comprising:
two or more feed antennas adapted to transmit and receive radio signals, wherein the two or more feed antennas comprise at least a first feed antenna adapted to operate in a first frequency band and a second feed antenna adapted to operate in a second frequency band, the first frequency band and the second frequency band being discontiguous with each other;
a rotatable platform, said two or more feed antennas being fixed to the rotatable platform; and
an antenna radome arranged around and, with the rotatable platform, enclosing the two or more feed antennas, the antenna radome being attached to and rotatable with the rotatable platform,
wherein the antenna radome comprises a metallic section implementing an antenna reflector for the two or more feed antennas and a nonmetallic section penetrable by radio waves,
wherein the metallic section was implemented by fixing a metallic part to the antenna radome or by metallizing at least one surface area of the antenna radome, the at least one surface area being on one or more of an inner surface and an outer surface of the antenna radome, and
wherein the metallic section has a parabolic shape forming a parabolic antenna reflector, the two or more feed antennas being arranged substantially at a focal point of the antenna reflector.

2. The antenna arrangement according to claim 1 , wherein the metallic section is adapted to provide the focal point in one of the following: a first position within the antenna radome and in a center of the antenna radome on a horizontal plane and a second position on an inner or outer surface of the antenna radome opposite to the metallic section, the horizontal plane being defined as a plane orthogonal to a direction of height of the antenna radome.

3. The antenna arrangement according to claim 2 , wherein the metallic section covers less than half of a surface area of the antenna radome.

4. The antenna arrangement according to claim 1 , wherein the two or more feed antennas comprise one or more feed antennas of the following types: an array antenna, a phased array antenna, a dipole antenna, a curved dipole antenna, a monopole antenna, a microstrip antenna, a curved microstrip antenna, a horn antenna, a horn lens antenna, a slotted antenna and a slotted array antenna.

5. The antenna arrangement according to claim 1 , wherein the first frequency band comprises at least one frequency above 20 GHz and below 100 GHz and the second frequency band comprises at least one frequency above 1 GHz and below 6 GHz.

6. The antenna arrangement according to claim 1 , wherein the first frequency band comprises at least one of 28 GHz, 38 GHz, 39 GHz and 60 GHz and/or the second frequency band comprises at least one of 3.6 GHz and 5 GHz.

7. The antenna arrangement according to claim 1 , wherein the first feed antenna is a first array or phased array antenna comprising two or more first planar microstrip antenna elements arranged in one or two dimensions and/or the second feed antenna is one of a second array or phased array antenna comprising two or more second planar microstrip antenna elements arranged in one or two dimensions and a dipole antenna.

8. The antenna arrangement according to claim 1 , wherein the second feed antenna is an array antenna comprising a third antenna element adapted to transmit and receive horizontally polarized radio waves and a fourth antenna element adapted to transmit and receive vertically polarized radio waves.

9. An antenna arrangement comprising:
two or more feed antennas adapted to transmit and receive radio signals, wherein the two or more feed antennas comprise at least a first feed antenna adapted to operate in a first frequency band and a second feed antenna adapted to operate in a second frequency band, the first frequency band and the second frequency band being discontiguous with each other;
a rotatable platform, said two or more feed antennas being fixed to the rotatable platform; and
an antenna radome arranged around and, with the rotatable platform, enclosing the two or more feed antennas, the antenna radome being attached to and rotatable with the rotatable platform,
wherein the antenna radome comprises a metallic section implementing an antenna reflector for the two or more feed antennas and a nonmetallic section penetrable by radio waves, and
wherein the second feed antenna is a curved resonant antenna printed on the nonmetallic section of the antenna radome.

10. The antenna arrangement according to claim 1 , further comprising:
a flat base, the flat base supporting the two or more feed antennas, the rotatable platform, and the antenna radome.

11. The antenna arrangement according to claim 10 , wherein the antenna radome has the shape of a spherical thin hollow dome arranged around the two or more feed antennas, a rim of the spherical dome being arranged against the flat base.

12. The antenna arrangement according to claim 11 , wherein the rotatable platform is rotatably fixed to the flat base, wherein the rotatable platform is adapted to provide azimuthal rotation of the two or more feed antennas and the antenna radome around an axis of rotation, the axis of rotation being orthogonal to the flat base.

13. An antenna arrangement comprising:
two or more feed antennas adapted to transmit and receive radio signals, wherein the two or more feed antennas comprise at least a first feed antenna adapted to operate in a first frequency band and a second feed antenna adapted to operate in a second frequency band, the first frequency band and the second frequency band being discontiguous with each other;
a rotatable platform, said two or more feed antennas being fixed to the rotatable platform; and
an antenna radome arranged around and, with the rotatable platform, enclosing the two or more feed antennas, the antenna radome being attached to and rotatable with the rotatable platform, wherein the antenna radome comprises a metallic section implementing an antenna reflector for the two or more feed antennas and a nonmetallic section penetrable by radio waves;
a flat base, the flat base supporting the two or more feed antennas, the rotatable platform, and the antenna radome; and
at least one adjustable antenna support structure supporting at least one of the two or more feed antennas, wherein each adjustable antenna support structure is adapted to provide elevational rotation of at least one of the two or more feed antennas in relation to a plane parallel to the flat base.

Assignees

• Nokia Solutions & Networks Oy

Inventors

• Sanjuan Flores Tomas
• Fernandez Duran Alfonso

Classifications

• H01Q3/18

  wherein the primary active element is movable and the reflecting device is fixed · CPC title

• H01Q15/142

  using insulating material for supporting the reflecting surface · CPC title

• H01Q3/2664

  electrically moving the phase centre of a radiating element in the focal plane of a focussing device (switching H01Q3/245, phased-array feeds H01Q3/2658) · CPC title

• H01Q3/2658

  Phased-array fed focussing structure · CPC title

• H01Q19/17

  the primary radiating source comprising two or more radiating elements (H01Q19/15, H01Q25/00 take precedence) · CPC title