Antenna system for small form factor

Patent metadata

Field	Value
Publication number	US-2020395661-A1
Application number	US-202016900085-A
Country	US
Kind code	A1
Filing date	Jun 12, 2020
Priority date	Jun 12, 2019
Publication date	Dec 17, 2020
Grant date	—

Abstract

A multiple-antenna device including a printed circuit board, a first antenna formed into a first corner of the printed circuit board, a second antenna formed into a second corner of the printed circuit board, and a dual-band decoupler formed in the printed circuit board between the first antenna and the second antenna. The multiple-antenna device includes WLAN circuitry located on the printed circuit board between the first antenna and the decoupler. The first and second antennas have polarizations orthogonal to each other.

First claim

What we claim is:

1 . A multiple-antenna device comprising:
a printed circuit board; a first antenna formed into a first corner of the printed circuit board; and a second antenna formed into a second corner of the printed circuit board, wherein the first and second antennas are oriented 90 degrees with respect to one another.

2 . The multiple-antenna device according to claim 1 , further comprising:
a decoupler formed in the printed circuit board between the first antenna and the second antenna.

3 . The multiple-antenna device according to claim 2 , wherein the decoupler is a dual band decoupler decoupling the first and second antennas in the 2.4 GHz and 5 GHz bands.

4 . The multiple-antenna device according to claim 2 , further comprising WLAN circuitry located on the printed circuit board between the first antenna and the decoupler, wherein at least one of the first antenna and second antenna is connected to the WLAN circuitry.

5 . The multiple-antenna device according to claim 1 , wherein the first and second antennas have polarizations orthogonal to each other.

6 . The multiple-antenna device according to claim 1 , further comprising electronic circuitry, which exhibits electro-magnetic interference during operation, located on the printed circuit board other than at the first and second corners of the printed circuit board.

7 . The multiple-antenna device according to claim 6 , wherein at least one of the first antenna and the second antenna have radiation nulls directed toward the electronic circuitry.

8 . The multiple-antenna device according to claim 6 , wherein the electronic circuitry which exhibits electro-magnetic interference comprises at least one of a USB port or an HDMI port.

9 . The multiple-antenna device according to claim 6 , further comprising short range wireless communication circuitry located on the printed circuit board, wherein the second antenna is connected to the short range wireless communication circuitry, and a distance between the second antenna and the electronic circuitry which exhibits electro-magnetic interference is greater than a distance between the first antenna and the electronic circuitry which exhibits electro-magnetic interference.

10 . The multiple-antenna device according to claim 9 , wherein the short range wireless communication circuitry is Bluetooth circuitry.

11 . The multiple-antenna device according to claim 1 , further comprising WLAN circuitry located on the printed circuit board between the first and second antennas.

12 . The multiple-antenna device according to claim 1 , further comprising a visual indicator located on the printed circuit board at a location corresponding to the second antenna configured to provide visual guidance for orienting the multiple antenna device behind a television.

13 . The multiple-antenna device according to claim 12 , wherein the visual indicator comprises a light emitting diode.

14 . The multiple-antenna device according to claim 12 , wherein the visual indicator comprises a light pipe.

15 . The multiple-antenna device according to claim 1 , wherein at least one of the first and second antennas is a copper etched antenna etched from a copper layer of the printed circuit board.

16 . The multiple-antenna device according to claim 1 , wherein at least one of the first and second antennas is a stand-alone antenna attached to the printed circuit board.

17 . The multiple-antenna device according to claim 1 , further comprising short range wireless communication circuitry located on the printed circuit board, wherein at least one of the first and second antennas is connected to the short range wireless communication circuitry.

18 . The multiple-antenna device according to claim 17 , wherein the short range wireless communication circuitry is Bluetooth circuitry.

Assignees

• Arris Entpr Llc

Inventors

• Bai Qiang
• Clarke Ian

Classifications

• H01Q1/523 Primary

  between antennas of an array · CPC title

• H01Q21/28

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

• H01Q9/42

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

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H05K2201/10106

  Light emitting diode [LED] · CPC title