Multi-band antennas and MIMO antenna arrays for electronic device

Patent metadata

Field	Value
Publication number	US-10355758-B2
Application number	US-201715726842-A
Country	US
Kind code	B2
Filing date	Oct 6, 2017
Priority date	Oct 6, 2017
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

Antennas and MIMO antenna arrays in a housing of an electronic device are described. The MIMO antenna array includes a plurality of antennas. At least one of the antennas has operating frequency ranges of 700 MHz-900 MHz, 1700 MHz-2100 MHz, and 3 GHz-5 GHz. The MIMO antenna array may include 8 or 10 antennas.

First claim

The invention claimed is:

1. An electronic device comprising:
a radio frequency (RF) communications circuit; and
a multiple input multiple output (MIMO) antenna array including a plurality of antennas connected to the RF communications circuit, wherein the plurality of antennas include a first antenna having a plurality of radiating members in a first physical configuration, a second antenna having a plurality of radiating members in a second physical configuration, a third antenna having a plurality of radiating members in a third physical configuration, a fourth antenna having a plurality of radiating members in a fourth physical configuration, and a plurality of fifth antennas each having a plurality of radiating members in a fifth physical configuration;
the first physical configuration of the first antenna and the second physical configuration of the second antenna being configured to simultaneously support operating frequency ranges of 700 MHz-900 MHz, 1700 MHz-2100 MHz, and 3 GHz-5 GHz;
the third physical configuration of the third antenna, the fourth physical configuration of the fourth antenna, and the fifth physical configuration of the fifth antennas being configured to support an operating frequency range of 3 GHz-5 GHz.

2. The electronic device of claim 1 , wherein the physical configuration of each of the antennas is configured to provide a total efficiency of at least 60% in the operating frequency range of 3 GHz-5 GHz.

3. The electronic device of claim 2 , wherein the first physical configuration of the first antenna and the second physical configuration of the second antenna are each configured to provide a total efficiency of at least 50% in the operating frequency ranges of 700 MHz-900 MHz and 1700 MHz-2100 MHz.

4. The electronic device of claim 1 , wherein the first and second antennas are configured to support four different radio access technologies and the third, fourth and fifth antennas are each configured to support one, same, radio access technology.

5. The electronic device of claim 1 , wherein the first and second antennas are configured to support each of second generation (2G), third generation (3G), fourth generation (4G) and fifth generation (5G) radio access technologies and the third, fourth and fifth antennas are each configured to support 5G radio access technology.

6. The electronic device of claim 1 , wherein the electronic device includes a housing supporting the plurality of antennas.

7. The electronic device of claim 6 , wherein the housing includes a rectangular perimeter sidewall having a top sidewall portion, a bottom sidewall portion, and two opposite sidewall portions each extending from the top sidewall portion to the bottom sidewall portion, wherein the first and second antennas are positioned at the top sidewall portion and the bottom sidewall portion respectively.

8. The electronic device of claim 7 , wherein some of the plurality of fifth antennas are positioned at one of the opposite sidewall portions and a remainder of the plurality of fifth antennas are positioned at the other of the opposite sidewall portions.

9. The electronic device of claim 8 , wherein the plurality of fifth antennas are positioned symmetrically with respect to both a longitudinal central axis of the housing and a latitudinal central axis of the housing.

10. The electronic device of claim 9 , wherein the plurality of fifth antennas includes at least four fifth antennas.

11. The electronic device of claim 8 , wherein the third and fourth antennas are positioned in respective diagonal corners of the housing.

12. The electronic device of claim 1 , wherein each antenna includes a shorting pin electrically connected to a common ground, and each antenna includes a feeding pin electrically connected to the RF communications circuit for receiving RF signals or transmitting RF signals, the RF communications circuit being enabled to transmit and receive RF signals in any of the operating frequency ranges of 700 MHz-900 MHz, 1700 MHz-2100 MHz, and 3 GHz-5 GHz using the first and second antennas, and to transmit and receive RF signals in the operating frequency ranges of 3 GHz-5 GHz using the third, fourth and fifth antennas.

13. A multiple input multiple output (MIMO) antenna array comprising:
a plurality of antennas for transmitting radio frequency (RF) signals from a transmitter of an electronic device and for receiving external RF signals, wherein the plurality of antennas include a first antenna having a plurality of radiating members in a first physical configuration, a second antenna having a plurality of radiating members in a second physical configuration, a third antenna having a plurality of radiating members in a third physical configuration, a fourth antenna having a plurality of radiating members in a fourth physical configuration, and a plurality of fifth antennas each having a plurality of radiating members in a fifth physical configuration;
the first physical configuration of the first antenna and the second physical configuration of the second antenna being configured to simultaneously support operating frequency ranges of 700 MHz-900 MHz, 1700 MHz-2100 MHz, and 3 GHz-5 GHz;
the third physical configuration of the third antenna, the fourth physical configuration of the fourth antenna, and the fifth physical configuration of the fifth antennas being configured to support an operating frequency range of 3 GHz-5 GHz.

14. The MIMO antenna array of claim 13 , wherein the physical configuration of each of the antennas is configured to provide a total efficiency of at least 60% in the operating frequency range of 3 GHz-5 GHz.

15. The MIMO antenna array of claim 14 , wherein the first physical configuration of the first antenna and the second physical configuration of the second antenna are each configured to provide a total efficiency of at least 50% in the operating frequency ranges of 700 MHz-900 MHz and 1700 MHz-2100 MHz.

16. The MIMO antenna array of claim 13 , wherein the first and second antennas are configured to support four different radio access technologies and the third, fourth and fifth antennas are each configured to support one, same, radio access technology.

17. The MIMO antenna array of claim 13 , wherein the first and second antennas are configured to support each of second generation (2G), third generation (3G), fourth generation (4G) and fifth generation (5G) radio access technologies and the third, fourth and fifth antennas are each configured to support 5G radio access technology.

18. The MIMO antenna array of claim 13 , wherein the electronic device includes a housing supporting the plurality of antennas.

19. The MIMO antenna array of claim 18 , wherein the housing includes a rectangular perimeter sidewall having a top sidewall portion, a bottom sidewall portion, and two opposite sidewall portions each extending from the top sidewall portion to the bottom sidewall portion, wherein the first and second antennas are positioned at the top sidewall portion and the bottom sidewall portion respectively.

20. The MIMO antenna array of claim 19 , wherein some of the plurality of fifth antennas are positioned at one of the opposite sidewall portions and a remainder of the plurality of fifth antennas are positioned at the other of the opposite sidewall portions.

21. The MIMO antenna array of claim 20 , wherein the plurality of fifth antennas are positioned symmetrically with respect to both a longitudinal central axis of the housing and a latitudinal central axis of the ho

Assignees

• Wang Dong
• Wang Enliang
• Huawei Tech Co Ltd

Inventors

• Wang Dong
• Wang Enliang

Classifications

• H04B7/0413

  MIMO systems · CPC title

• H01Q9/0421

  with a shorting wall or a shorting pin at one end of the element (H01Q9/0414 takes precedence) · CPC title

• H01Q5/371

  Branching current paths · CPC title

• H01Q1/521

  reducing the coupling between adjacent antennas · CPC title

• H01Q21/28

  Combinations of substantially independent non-interacting antenna units or systems {(multiple beam H01Q25/00)} · CPC title