Antenna Element for Signals with Three Polarizations

Patent metadata

Field	Value
Publication number	US-2016372839-A1
Application number	US-201514745421-A
Country	US
Kind code	A1
Filing date	Jun 20, 2015
Priority date	Jun 20, 2015
Publication date	Dec 22, 2016
Grant date	—

Abstract

An antenna element for signals with three polarizations and the method for operating such an antenna element are disclosed. In an embodiment the antenna element includes a first dipole element configured to emit or receive electromagnetic signals in a first polarization direction, a second dipole element configured to emit or receive electromagnetic signals in a second polarization direction, a monopole element configured to emit or receive electromagnetic signals in a third polarization direction and an antenna reflector element, wherein the first dipole element, the second dipole element and the monopole element are collocated on the antenna reflector element, and wherein the first polarization direction, the second polarization direction and the third polarization direction are all different.

First claim

What is claimed is:

1 . An antenna element comprising:
a first dipole element configured to emit or receive electromagnetic signals in a first polarization direction; a second dipole element configured to emit or receive electromagnetic signals in a second polarization direction; a monopole element configured to emit or receive electromagnetic signals in a third polarization direction; and an antenna reflector element, wherein the first dipole element, the second dipole element and the monopole element are collocated on the antenna reflector element, and wherein the first polarization direction, the second polarization direction and the third polarization direction are all different.

2 . The antenna element according to claim 1 , wherein the antenna element comprises a height of about λ/6, wherein λ is a wavelength of an electromagnetic signal.

3 . The antenna element according to claim 1 , wherein the first dipole element is rotate about 45° relative to a main direction of the monopole element, and wherein the second dipole element is rotated about −45° relative to the main direction of the monopole element.

4 . The antenna element according to claim 1 , wherein the first dipole element and the second dipole element are arranged orthogonal to each other as a crossed dual dipole element.

5 . The antenna element according to claim 4 , wherein the crossed dual dipole element is symmetric.

6 . The antenna element according to claim 1 , wherein the monopole element is symmetric and comprises a height of about λ/6.

7 . The antenna element according to claim 1 , wherein the first polarization direction, the second polarization direction and the third polarization direction are each orthogonal to each other.

8 . The antenna element according to claim 1 , wherein the monopole element is a folded monopole element.

9 . A method for communicating an electromagnetic signal, the method comprising:
receiving or emitting, by a monopole element, a first electromagnetic signal component in a first polarization direction; receiving or emitting, by a first dipole element, a second electromagnetic signal component in a second polarization direction; and receiving or emitting, by a second dipole element, a third electromagnetic signal component in a third polarization direction, wherein the first dipole element, the second dipole element and the monopole element are collocated on an antenna reflector element, and wherein the first polarization direction, the second polarization direction and the third polarization direction are all different.

10 . The method according to claim 9 , wherein the first dipole element is rotated relative to the monopole element by about a +45° angle, and wherein the second dipole element is rotated relative to the monopole element by about a −45° angle.

11 . The method according to claim 9 , wherein the first polarization direction, the second polarization direction and the third polarization direction are each orthogonal to each other.

12 . An antenna element comprising:
an antenna reflector element; a monopole element disposed on the antenna reflector element in a first direction; a first dipole element disposed on the antenna reflector element in a second direction; and a second dipole element disposed on the antenna reflector element in a third direction, wherein the second direction is arranged in about a +45° angle to the first direction, wherein the third direction is arranged in about a −45° angle to the first direction, and wherein the monopole element, the first dipole element and the second dipole element are arranged around a central axis, the central axis being orthogonal to the antenna reflector element.

13 . The antenna element according to claim 12 , wherein the antenna reflector element is a conductive plate.

14 . The antenna element according to claim 12 , wherein the monopole element comprises two dielectric substrates each having two main surfaces and side surfaces connecting the two main surfaces, the dielectric substrates being arranged orthogonal to each other, a conductive pattern being printed on each main surface, and wherein each substrate is disposed with a side surface on the antenna reflector element.

15 . The antenna element according to claim 14 , wherein only one of the dielectric substrates comprises an input port while the other of the dielectric substrates does not.

16 . The antenna element according to claim 12 , wherein the monopole element has a height of about λ/6.5, wherein λ is a wavelength of an electromagnetic signal.

17 . The antenna element according to claim 12 , wherein the first dipole element and the second dipole element each comprises three dielectric substrates each having two main surfaces and side surfaces connecting the two main surfaces, a first dielectric substrate being disposed with a bottom side surface on the antenna reflector element, a second dielectric substrate and a third dielectric substrate being arranged parallel to the antenna reflector element, and wherein the third dielectric substrate is arranged on a top side surface of the first dielectric substrate.

18 . The antenna element according to claim 17 , wherein each dipole element comprises a lower dipole probe arranged on the second dielectric substrate, and upper dipole probe arranged on the third dielectric substrate.

19 . The antenna element according to claim 18 , wherein the upper dipole probe is larger than the lower dipole probe.

20 . The antenna element according to claim 17 , wherein each dipole element comprises a balun.

21 . A method for communicating an electromagnetic signal from and to an antenna element, wherein the antenna element comprises an antenna reflector element, a monopole element disposed on the antenna reflector element in a first direction, a first dipole element disposed on the antenna reflector element in a second direction and a second dipole element disposed on the antenna reflector element in a third direction, wherein the second direction is arranged in about a +45° angle to the first direction, wherein the third direction is arranged in about a −45° angle to the first direction, and wherein the monopole element, the first dipole element and the second dipole element are arranged around a central axis, the central axis being orthogonal to the antenna reflector element, the method comprising:
receiving or emitting, by the monopole element, a first electromagnetic signal component;
receiving or emitting, by the first dipole element, a second electromagnetic signal component; and
receiving or emitting, by a second dipole element, a third electromagnetic signal component.

Assignees

• Huawei Tech Co Ltd

Inventors

• Watson Paul Robert
• Boutayeb Halim

Classifications

• H01Q9/42

  with folded element, the folded parts being spaced apart a small fraction of the operating wavelength · CPC title

• H01Q21/26 Primary

  Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre · CPC title

• H01Q9/285

  Planar dipole (H01Q9/065 takes precedence; patch antenna H01Q9/0407) · CPC title

• H01Q1/1271

  for mounting on windscreens · CPC title

• H01Q21/062

  using dipole aerials; (H01Q21/067, H01Q21/068 take precedence) · CPC title