Wireless communication antennae for concurrent communication in an access point

• US 9,761,958 B2
• Filed: 06/02/2015
• Issued: 09/12/2017
• Est. Priority Date: 12/05/2005
• Status: Active Grant

• Current Assignee: Fortinet Inc.
• Original Assignee: Fortinet Inc.
• Inventors: Bharghavan, Vaduvur, Venugopalachary, Rajendran, Sivaprakasam, Srinivas
• Primary Examiner(s): Vu, Hoang-Chuong
• Application Number:
  US14/727,934
• Publication Number:
  US 20160118722A1
• Time in Patent Office: 833 Days
• Field of Search: 370334, 370338, 455 111, 455 25, 455 634, 455561, 4555621, 4555757, 343757, 343761, 343882, 343893
• CPC Class Codes: H01Q 1/084 Pivotable antennas
• CPC Class Codes: H01Q 1/1264 Adjusting different parts or elements of an aerial unit
• CPC Class Codes: H01Q 1/521 reducing the coupling between adjacent antennas
• CPC Class Codes: H01Q 21/28 Combinations of substantially independent non-interacting antenna units or systems multiple beam H01Q25/00
• CPC Class Codes: H01Q 25/001 Crossed polarisation dual antennas orthomode horns H01Q13/0258; cross-polarised rear feeds H01Q19/136; orthomode transducers H01P1/161
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04W 60/00 Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

One or more access points in a wireless communication system, wherein at least one of those access points includes a set of more than one antennae capable of concurrent communication, and at least one of those more than one antennae is isolated from a remainder of that set of antennae during concurrent communication. Isolation includes one or more of disposed a first antenna in a null region of a second antenna, disposing a first antenna to communicate polarized and substantially orthogonal to a second antenna, disposing a set of antennae to communicate at two or more carrier frequencies, wherein each first antenna adjacent to a second antenna operate at distinct such carrier frequencies, or disposing a set of antennae to communicate using two or more substantially distinct protocols, wherein substantially each first antenna adjacent to a second antenna operate at substantially distinct such protocols.

Claims

1. An access point with multiple antennae for concurrent communication in a wireless network, comprising:

a first enclosure having inside a first set of antennae and a second set of antennae located in a null region of the first set; and

a second enclosure having inside at least two scanning antennae to locate stations in the wireless network and operating concurrently with the first and second sets of antennae at distinct frequencies and located in the second enclosure,

wherein the second enclosure is independently rotatable from the first enclosure on at least two axes to reduce interference between the at least two scanning antennae and the first and second set of antennae.

2. The access point of claim 1, wherein the first enclosure is rotated parallel relative to the second enclosure to mate the first enclosure and second enclosure.

3. The access point of claim 1, wherein the first enclosure is rotated perpendicular relative to the first enclosure to a position that the first enclosure and second enclosure are perpendicular in two directions.

4. The access point of claim 1, comprising a hinge to enable independent rotation between the first and second enclosures.

5. The access point of claim 1, wherein the multiple antennae comprise multiple MIMO (multiple input/multiple output) antennae.

6. The access point of claim 1, wherein the access point operates according to IEEE 802.11n.

7. The access point of claim 1, wherein the access point is attachable to a wall.

8. An access point with multiple antennae for concurrent communication in a wireless network, comprising:

a first set of antennae;

a second set of antennae located adjacent to the first set of antennae and in a null region of the first set of antennae and concurrently communicates relative to the first set of antennae; and

a third set of antennae located adjacent to the second set of antennae, apart from the first set of antennae, and in a null region of the second set of antennae, communicating using a protocol and frequency in common with the first set of antennae, the first, second and third sets of antennae located in a first enclosure; and

at least two scanning antennae to locate stations operating concurrently with the first, second and third sets of antennae located in a second enclosure, wherein the second enclosure is independently rotatable from the first enclosure on at least two axes to reduce interference between the at least two scanning antennae and the first, second and third sets of antennae.