Methods and systems for implementing and operating multiple-input and multiple-output (MIMO) antennas for radio telecommunications

Patent metadata

Field	Value
Publication number	US-11682840-B2
Application number	US-202117322469-A
Country	US
Kind code	B2
Filing date	May 17, 2021
Priority date	Mar 29, 2018
Publication date	Jun 20, 2023
Grant date	Jun 20, 2023

Abstract

Methods and systems for implementing and operating antennas, particularly multiple-input and multiple-output (MIMO) antennas. An example antenna may include a planar dielectric substrate, a primary conductive area on a first surface of the planar dielectric substrate, a first secondary conductive area on the first surface, and a second secondary conductive area. The primary conductive area has a shape that defines at least a first region and a second region of the first surface, with the first region bounded by at least a portion of the primary conductive area, and the second region including a remaining portion of the first surface. The first secondary conductive area may lie in the first region of the first surface, and the second secondary conductive area may lie in the second region.

First claim

What is claimed is:

1. An antenna comprising:
a planar dielectric substrate;
a primary conductive area on a first surface of the planar dielectric substrate, wherein the primary conductive area has a shape defining: a first region of the first surface bounded by at least a portion of the primary conductive area, and a second region comprising a remaining portion of the first surface;
a first secondary conductive area on the first surface, wherein the first secondary conductive area lies in the first region of the first surface;
a second secondary conductive area provided on the first surface, wherein the second secondary conductive area lies in the second region; and
a primary stem connected to the primary conductive area,
wherein the first secondary conductive area comprises a secondary stem, and wherein an angular separation between the secondary stem and the primary stem is 90°.

2. The antenna of claim 1 , wherein the first secondary conductive area comprises a first arc on the first surface.

3. The antenna of claim 1 , wherein the second secondary conductive area comprises a second arc on the first surface.

4. The antenna of antenna of claim 1 , wherein the primary stem is disposed on the first surface.

5. The antenna of claim 4 , wherein the primary stem lies adjacent to and parallel to a radially aligned edge of the second secondary conductive area.

6. The antenna of claim 1 , wherein the second secondary conductive area comprises an arc shaped portion parallel to the outside edge of the primary conductive area, and a third stem joined to the arc shaped portion and lying parallel to the secondary stem.

7. The antenna of claim 1 , wherein the first secondary conductive area comprises a secondary stem that is separate from the primary conductive area.

8. The antenna of claim 7 , wherein the secondary stem transects a portion of the primary conductive area.

9. The antenna of claim 1 , wherein the first secondary conductive area and the second secondary conductive area are disposed adjacent to edges of different portions of the primary conductive area.

10. A multiple-input and multiple-output (MIMO) apparatus comprising:
an antenna comprising a primary conductive area on a first surface of a planar dielectric substrate;
a first secondary conductive area on the first surface, wherein the first secondary conductive area lies in a region of the first surface bounded by the primary conductive area;
a second secondary conductive area provided on the first surface;
a first transmit/receive (Tx/Rx) component that comprises one or more circuits configured for transmission and reception of radio frequency (RF) signals; and
a second transmit/receive (Tx/Rx) component that comprises one or more circuits configured for transmission and reception of radio frequency (RF) signals;
wherein:
the first transmit/receive (Tx/Rx) component is configured to provide a first input/output channel, and the second transmit/receive (Tx/Rx) component is configured to provide second input/output channel;
the first transmit/receive (Tx/Rx) component is configured to provide a first input/output channel using a first polarization mode of the antenna;
the second transmit/receive (Tx/Rx) component is configured to provide a second input/output channel using a second polarization mode of the antenna; and
the first polarization mode and the second polarization mode comprise fundamental modes of the antenna.

11. The MIMO apparatus of claim 10 , wherein an edge of the first secondary conductive area is adjacent to, and parallel to an edge of the primary conductive area, and the edge of the second secondary conductive area is adjacent to, and parallel to another edge of the primary conductive area.

12. The MIMO apparatus of claim 10 , wherein the first secondary conductive area comprises a first arc on the first surface.

13. The MIMO apparatus of claim 12 , wherein the first secondary conductive area further comprises a stem connected to the first arc, and wherein the stem is separate from the primary conductive area and transects a portion of the primary conductive area.

14. The MIMO apparatus of claim 10 , wherein the first polarization mode of the antenna is orthogonal to the second polarization mode of the antenna.

15. An antenna comprising:
a planar dielectric substrate;
a primary conductive area on a first surface of the planar dielectric substrate, wherein the primary conductive area has a shape defining: a first region of the first surface bounded by at least a portion of the primary conductive area, and a second region comprising a remaining portion of the first surface;
a first secondary conductive area on the first surface, wherein the first secondary conductive area lies in the first region of the first surface;
a second secondary conductive area provided on the first surface, wherein the second secondary conductive area lies in the second region;
a first signal connection connected to the first secondary conductive area; and
a second signal connection connected to an edge of the primary conductive area adjacent the second secondary conductive area;
wherein an edge of the primary conductive area adjacent to the first secondary conductive area is grounded, and the second secondary conductive area is grounded.

16. The antenna of claim 15 , wherein the first secondary conductive area comprises a first arc on the first surface.

17. The antenna of claim 15 , wherein the second secondary conductive area comprises a second arc on the first surface.

18. The antenna of claim 15 , comprising a primary stem connected to the primary conductive area.

19. The antenna of claim 18 , wherein the primary stem is disposed on the first surface.

20. The antenna of claim 19 , wherein the primary stem lies adjacent to and parallel to a radially aligned edge of the second secondary conductive area.

21. The antenna of claim 15 , wherein the first secondary conductive area comprises a secondary stem that is separate from the primary conductive area.

22. The antenna of claim 21 , wherein the secondary stem transects a portion of the primary conductive area.

23. The antenna of claim 15 , wherein the first secondary conductive area and the second secondary conductive area are disposed adjacent to edges of different portions of the primary conductive area.

24. An antenna comprising:
a planar dielectric substrate;
a primary conductive area on a first surface of the planar dielectric substrate, wherein the primary conductive area has a shape defining: a first region of the first surface bounded by at least a portion of the primary conductive area, and a second region comprising a remaining portion of the first surface;
a first secondary conductive area on the first surface, wherein the first secondary conductive area lies in the first region of the first surface; and
a second secondary conductive area provided on the first surface, wherein the second secondary conductive area lies in the second region;
a first signal connection connected to an edge of the primary conductive area adjacent to the first secondary conductive area; and
a second signal connection connected to the second secondary conductive area,
wherein the first secondary conductive area is grounded, and an edge of the primary conductive area adjacent the second secondary conductive area is grounded.

25. The antenna of claim 24 , wherein the first secondary conductive area

Assignees

• Swisscom Ag

Inventors

• Jamaly Nima

Classifications

• H01Q7/00 Primary

  Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop · CPC title

• H01Q21/0025

  Modular arrays · CPC title

• H04B7/0413

  MIMO systems · CPC title

• H01Q9/265

  Open ring dipoles; Circular dipoles · CPC title

• H01Q1/38

  formed by a conductive layer on an insulating support {(patch antennas H01Q9/0407; microstrip dipole antennas H01Q9/065; microstrip slot antennas H01Q13/106; transmission line microstrip antennas H01Q13/206; manufacturing reflecting surfaces using insulating material for supporting the reflecting surface  H01Q15/142)} · CPC title