Reflector antenna arrangement

Patent metadata

Field	Value
Publication number	US-10263343-B2
Application number	US-201615022796-A
Country	US
Kind code	B2
Filing date	Mar 10, 2016
Priority date	Mar 10, 2016
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

The present disclosure relates to a reflector antenna arrangement comprising at least a first reflective metal surface and a signal feeding arrangement transition that is adapted to receive a signal feeding arrangement that in turn is adapted to transmit and/or receive electromagnetic radiation via the first reflective metal surface. The reflector antenna arrangement further comprises a common dielectric body comprising at least one dielectric material, to which common dielectric body the first reflective metal surface is attached in a fixed relation to the signal feeding arrangement transition with a certain distance between them such that said transmitted and/or received electromagnetic radiation at least partly is arranged to propagate through at least a part of the common dielectric body.

First claim

The invention claimed is:

1. A reflector antenna arrangement comprising:
at least a first reflective metal surface and
a signal feeding arrangement transition that is adapted to receive a signal feeding arrangement that in turn is adapted to transmit and/or receive electromagnetic radiation via the first reflective metal surface,
wherein the reflector antenna arrangement further comprises a common dielectric body comprising at least one dielectric material, to which common dielectric body the first reflective metal surface is attached in a fixed relation to the signal feeding arrangement transition with a certain distance between them such that said transmitted and/or received electromagnetic radiation at least partly is arranged to propagate through at least a part of the common dielectric body; and
wherein the reflector antenna arrangement comprises a second reflective metal surface attached to the common dielectric body in a fixed relation to the first reflective metal surface with a certain distance between them, where the first reflective metal surface and the second reflective metal surface are adapted for transfer of electromagnetic radiation between them by means of reflection and wherein the first and second reflective surfaces comprise non-colinear axes of symmetry.

2. The reflector antenna arrangement according to claim 1 , wherein the first reflective metal surface and the second reflective metal surface have a parabolic shape.

3. The reflector antenna arrangement according to claim 1 , wherein the reflector antenna arrangement comprises a third reflective metal surface attached to the common dielectric body in a fixed relation to the signal feeding arrangement transition with a certain distance between them.

4. The reflector antenna arrangement according to claim 3 , wherein the reflector antenna arrangement comprises a fourth reflective metal surface attached to the common dielectric body in a fixed relation to the third reflective metal surface with a certain distance between them, where the third reflective metal surface and the fourth reflective metal surface are adapted for transfer of electromagnetic radiation between them by means of reflection.

5. The reflector antenna arrangement according to claim 1 , wherein each reflective metal surface is arranged on a respective outer surface of the common dielectric body.

6. The reflector antenna arrangement according to claim 1 , wherein each reflective metal surface is arranged as a layer of metallic coating on a respective outer surface of the common dielectric body.

7. The reflector antenna arrangement according to claim 1 , wherein the common dielectric body is integrally formed.

8. The reflector antenna arrangement according to claim 1 , wherein the common dielectric body is formed as one solid piece.

9. The reflector antenna arrangement according to claim 1 , wherein the common dielectric body is formed as a hollow body.

10. The reflector antenna arrangement according to claim 1 , wherein the common dielectric body comprises at least two different dielectric materials arranged in a layer structure.

11. The reflector antenna arrangement according to claim 1 , wherein the common dielectric body comprises at least one surface part that has a matched shaped that provides a desired antenna radiation pattern and reflection characteristics.

12. The reflector antenna arrangement according to claim 1 , wherein each signal feeding arrangement transition is arranged to receive at least one of:
a circular feeding horn antenna adapted to co-operate with a taper arrangement formed in the common dielectric body;
a square feeding horn antenna adapted to co-operate with a taper arrangement formed in the common dielectric body:
a feeding array antenna;
an electrically controlled antenna;
a patch antenna arrangement;
a slot antenna arrangement; and
a dielectric rod attached to a circular waveguide.

13. The reflector antenna arrangement according to claim 12 , wherein each signal feeding arrangement comprises a radio unit.

14. The reflector antenna arrangement according to claim 1 , wherein the reflector antenna arrangement is integrally formed.

15. The reflector antenna arrangement according claim 1 , wherein the common dielectric body at least partly is formed in at least one of following materials, alone or in a mixture:
PTFE, polytetrafluoroethylene, with or without re-enforcement;
glass;
PVC, polyvinylchloride;
ceramics;
PC, polycarbonate; and
PU, polyurethane.

16. A method for manufacturing a reflector antenna arrangement, wherein the method comprises:
forming a common dielectric body comprising at least one dielectric material;
forming a signal feeding arrangement transition in the common dielectric body, where the signal feeding arrangement transition is used for receiving a signal feeding arrangement that in turn is used for transmitting and/or receiving electromagnetic radiation via the first reflective metal surface;
attaching at least a first reflective metal surface to the common dielectric body and a second reflective metal surface, wherein the second reflective metal surface is attached in a fixed relation to the first reflective metal surface with a certain distance between them, where the first reflective metal surface and the second reflective metal surface are adapted for transfer of electromagnetic radiation between them by means of reflection and wherein the first and second reflective surfaces comprise non-colinear axes of symmetry; and
performing said attaching such that said first reflective metal surface and said signal feeding arrangement transition have a fixed relation to each other with a certain distance between them, enabling said transmitted and/or received electromagnetic radiation to at least partly propagate through at least a part of the common dielectric body.

17. The method according to claim 16 , wherein
the first reflective metal surface and the second reflective metal surface have a parabolic shape.

18. The method according to claim 16 , wherein each reflective metal surface is attached to a respective outer surface of the common dielectric body.

19. The method according to claim 16 , wherein each reflective metal surface is applied to a respective outer surface of the common dielectric body as a layer of metallic coating.

20. The method according to claim 16 , wherein the common dielectric body is formed by using molding.

Assignees

• Ericsson Telefon Ab L M

Inventors

• Flodin Jonas
• Emanuelsson Thomas

Classifications

• H01Q19/192 Primary

  with dual offset reflectors · 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

• H01Q1/42

  Housings not intimately mechanically associated with radiating elements, e.g. radome · CPC title