IP Library Granted Patent US 8,519,902
Granted Patent B2
US 8,519,902 · App. 13/487,918 · Granted Aug 27, 2013

Wireless local area network antenna array

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Quick Facts
Patent No.
US 8,519,902
App. No.
13/487,918
Granted
Aug 27, 2013
Kind
B2
Abstract

A wireless local area network (“WLAN”) antenna array (“WLANAA”) is disclosed. The WLANAA may include a circular housing having a plurality of radial sectors and a plurality of primary antenna elements. Each individual primary antenna element of the plurality of primary antenna elements may be positioned within an individual radial sector of the plurality of radial sectors.

Claims (24)

1. A method for radiating multiple antenna patterns in a wireless local area network antenna array, the method comprising:

transmitting a first plurality of transmission signals from a plurality of radios located in radial sectors of a circular housing, wherein the first plurality of transmission signals are produced with a plurality of primary antenna elements;

generating individual radiation patterns from individual primary antenna elements in corresponding radial sectors, the corresponding radial sectors including reflecting and deflecting components for forming the individual radiation patterns to cover corresponding areas extending radially from each radial sector; and

isolating the individual radiation patterns from adjacent radial sectors using absorbing components.

2. The method of claim 1 where the step of generating the individual radiation patterns includes the step of:

reflecting parts of the first plurality of transmission signals with a plurality of main reflectors.

3. The method of claim 1 where the step of generating the individual radiation patterns includes the step of:

deflecting parts of the first plurality of transmission signals with a plurality of deflectors.

4. The method of claim 1 where the step of isolating the individual radiation patterns includes the step of:

absorbing parts of the first plurality of transmission signals with a plurality of absorber elements.

5. The method of claim 1 , wherein transmitting includes transmitting utilizing non-overlapping channels.

6. The method of claim 1 , wherein transmitting includes transmitting the first plurality of transmission signals that conform to the IEEE 802.11a frequency standard.

7. The method of claim 1 , wherein transmitting includes transmitting the first plurality of transmission signals,

wherein the individual radiation patterns overlap for corresponding individual primary antenna elements, of the plurality of primary antenna elements, that are located adjacent to each other.

8. The method of claim 7 , further including transmitting a second plurality of transmission signals from a second plurality of radios located in radial sectors of the circular housing, wherein the second plurality of transmission signals are produced with a plurality of secondary antenna elements.

9. The method of claim 8 , wherein transmitting includes transmitting utilizing non-overlapping channels.

10. The method of claim 9 , wherein transmitting includes transmitting the second plurality of transmission signals that conform to the IEEE 802.11b frequency standard.

11. The method of claim 10 , wherein transmitting a second plurality of transmission signals includes transmitting the second plurality of transmission signals,

wherein individual transmission signals from the second plurality of transmission signals have individual secondary radiation patterns, and

wherein the individual secondary radiation patterns overlap for corresponding individual secondary antenna elements, of the plurality of secondary antenna elements, that are located adjacent to each other.

12. The method of claim 9 , wherein transmitting includes transmitting the second plurality of transmission signals that conform to the IEEE 802.11g frequency standard.

13. The method of claim 12 , wherein transmitting a second plurality of transmission signals includes transmitting the second plurality of transmission signals,

wherein individual transmission signals from the second plurality of transmission signals have individual secondary radiation patterns, and

wherein the individual secondary radiation patterns overlap for corresponding individual secondary antenna elements, of the plurality of secondary antenna elements, that are located adjacent to each other.

Assignments (7)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 11, 2020
From: RIVERBED TECHNOLOGY, INC.
To: CAMBIUM NETWORKS, LTD.
Reel/Frame 051894/0194 →
RELEASE OF SECURITY INTEREST IN CERTAIN PATENTS Recorded Aug 8, 2019
From: MORGAN STANLEY SENIOR FUNDING, INC.
To: RIVERBED TECHNOLOGY, INC.
Reel/Frame 050016/0600 →
PATENT SECURITY AGREEMENT Recorded Jul 10, 2019
From: RIVERBED TECHNOLOGY, INC.
To: MORGAN STANLEY SENIOR FUNDING, INC., AS COLLATERAL AGENT
Reel/Frame 049720/0808 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 2, 2018
From: XIRRUS LLC
To: RIVERBED TECHNOLOGY, INC.
Reel/Frame 047706/0936 →
CONVERSION TO LIMITED LIABILITY COMPANY Recorded Sep 18, 2018
From: XIRRUS, INC.
To: XIRRUS LLC
Reel/Frame 047100/0874 →
RELEASE OF INTELLECTUAL PROPERTY SECURITY AGREEMENT RECORDED AT REEL 029992/FRAME 0105 Recorded May 2, 2017
From: SILICON VALLEY BANK
To: XIRRUS, INC.
Reel/Frame 042388/0164 →
RELEASE OF SECURITY INTEREST RECORDED AT REEL 031867/FRAME 0745 Recorded May 2, 2017
From: TRIPLEPOINT VENTURE GROWTH BDC CORP., AS ASSIGNEE OF TRIPLEPOINT CAPITAL LLC
To: XIRRUS, INC.
Reel/Frame 042388/0753 →