Multi-sector antennas

Patent metadata

Field	Value
Publication number	US-2020403306-A1
Application number	US-202017013493-A
Country	US
Kind code	A1
Filing date	Sep 4, 2020
Priority date	Oct 14, 2014
Publication date	Dec 24, 2020
Grant date	—

Abstract

Multi-directional antenna assemblies including a plurality of individual antenna sections arranged in-line with a long axis, forming a linear assembly. An antenna assembly may include a radome over the linear assembly. A linear assembly may include three or more antenna sections, each with a trough-like reflector formed by two parallel walls, and may have corrugations at the outer edges to reduce noise. An array of radiators may be positioned at the base of each antenna section. The antenna sections may share a common vertical axis and each may have a beam axes that is offset by an angle. Adjacent antenna sections may be separated by an isolation plate with a corrugated outer edge. Each antenna section may radiate greater power in a specific direction as compared to the other antenna sections.

First claim

What is claimed is:

1 . An antenna assembly having a first vertical axis, the antenna assembly comprising:
three or more antenna sections arranged atop each other along the first vertical axis, wherein each antenna section includes:
a reflector; and
a radiator array, positioned at a base of the reflector,
wherein each antenna section is separated from an adjacent antenna section by an isolation plate,
further wherein each antenna section is oriented along the first vertical axis so that an output beam axis of each antenna section points in a different direction than any other antenna section of the assembly.

2 . The antenna assembly claim 1 , wherein each antenna section is oriented along the first vertical axis so that the output beam axis of each antenna section points in a different direction that is offset by more than about 10 degrees from any other output beam axis of any antenna section.

3 . The antenna assembly of claim 1 , wherein for each antenna section the reflector comprises two walls extending from the base of the reflector.

4 . The antenna assembly of claim 1 , wherein for each antenna section the reflector comprises two walls positioned perpendicular to the isolation plate, further wherein the corrugation extends along the outer edge between the walls of the reflector.

5 . The antenna assembly of claim 1 , wherein the radiator array comprises a line of circular disks.

6 . The antenna assembly of claim 1 , wherein each antenna section comprises an elongate trough extending in the first vertical axis formed by a first wall and a second wall.

7 . The antenna assembly of claim 1 , wherein each antenna section comprises an elongate trough extending in the first vertical axis formed by a first wall and a second wall and a base between the first wall and second wall, and an opening into the trough between the first wall and the second wall, wherein the opening has a width that is larger than a width at the base.

8 . The antenna assembly of claim 1 , wherein each antenna section comprises an elongate trough extending in the first vertical axis formed by a first wall and a second wall and a base between the first wall and second wall, and an opening into the trough between the first wall and the second wall, wherein the opening has a width that is larger than a width at the base, further comprising a corrugation on the first wall along an edge of the first wall opposite the base, and a corrugation on the second wall along an edge of the second wall opposite the base.

9 . The antenna assembly of claim 1 , wherein each antenna section comprises an elongate trough extending in the first vertical axis formed by a first wall and a second wall and a base between the first wall and second wall, and an opening into the trough between the first wall and the second wall, wherein the opening has a width that is larger than a width at the base, further comprising a corrugation on the first wall along an edge of the first wall opposite the base, and a corrugation on the second wall along an edge of the second wall opposite the base, further wherein the corrugation on the first wall and the corrugation on the second wall of each antenna section each comprise a plurality of ridges extending in the first axis.

10 . The antenna assembly of claim 1 , further comprising a radome positioned over the antenna assembly covering the reflectors of each of the antenna sections.

11 . The antenna assembly of claim 1 , wherein the antenna sections have identical output beamwidths.

12 . The antenna assembly of claim 1 , wherein the output beamwidth for each antenna section is 60 degrees.

13 . The antenna assembly of claim 1 , wherein the combined beamwidth of all the antenna sections is 90 degrees.

14 . The antenna assembly of claim 1 , wherein a beam axis of a first antenna section is radially separated by 30 degrees from a beam axis of a second antenna section and 60 degrees from a beam axis of third antenna section.

15 . The antenna assembly of claim 1 , wherein a beam axis of a first antenna section is radially separated by 30 degrees from a beam axis of a second antenna section and 60 degrees from a beam axis of third antenna section, further wherein the second antenna section is positioned between the first and third antenna sections.

16 . The antenna assembly of claim 1 , wherein a beam axis of a first antenna section is radially separated by 30 degrees from a beam axis of a second antenna section and 60 degrees from a beam axis of third antenna section, further wherein the first antenna section is positioned between the second and third antenna sections.

17 . The antenna assembly of claim 1 , wherein a beam axis of a first antenna section is radially separated by 30 degrees from a beam axis of a second antenna section and 60 degrees from a beam axis of third antenna section, further wherein the third antenna section is positioned between the first and second antenna sections.

18 . The antenna assembly of claim 1 , wherein each antenna section has varying output beamwidths.

19 . The antenna assembly of claim 1 , wherein at least two of the antenna sections have identical beamwidths.

20 . An antenna assembly having a first axis, the antenna assembly comprising:
a first antenna section that is between a second antenna section and a third antenna section, wherein the first, second and third antenna sections are in the first axis, further wherein each of the first, second and third antenna sections include: an elongate trough extending in the first axis, wherein the elongate trough comprises a first wall and a second wall, an opening into the trough between the first wall and the second wall, a radiator array comprises an array radiator elements arranged in the first axis, a corrugation on the first wall along an edge of the first wall comprising a plurality of ridges extending in the first axis, and a corrugation on the second wall along an edge of the second wall comprising a plurality of ridges extending in the first axis; and a first isolation plate between the first and second antenna section, and a second isolation plate between the second and third antenna sections.

Assignees

• Ubiquiti Inc

Inventors

• Pera Robert J
• Sanford John R
• Sun Yanwei

Classifications

• H01Q19/10

  using reflecting surfaces · CPC title

• H01Q25/00

  Antennas or antenna systems providing at least two radiating patterns (arrangements for changing or varying the orientation or the shape of the directional pattern H01Q3/00) · CPC title

• H01Q1/523 Primary

  between antennas of an array · CPC title

• H01Q21/08

  the units being spaced along or adjacent to a rectilinear path {(waveguide fed H01Q21/0037)} · CPC title

• H01Q1/246

  specially adapted for base stations · CPC title