Title:
ANTENNA DIVERSITY APPARATUS
Document Type and Number:
WIPO Patent Application WO/2011/095796
Kind Code:
A3
Abstract:
Apparatus for providing antenna diversity for a radio transmitter/receiver (TR) comprising measuring means for measuring relative received signal strengths in a plurality of antennas in a selectable frequency range, means for selecting the selectable frequency range according to a transmission frequency of the TR, and connecting means for connecting the antenna having the greatest received signal strength to the TR. The apparatus may be combined with a plurality of antennas to form a diversity antenna system, for example for use with a personal radio. The antennas may then be disposed spaced apart on the user's body e.g. by being incorporated into a garment.
Inventors:
PESCOD CHRISTOPHER RALPH (GB)
MATTHEWS JAMES CHRISTOPHER GORDON (GB)
SMITH ANDREW JAMES (GB)
MATTHEWS JAMES CHRISTOPHER GORDON (GB)
SMITH ANDREW JAMES (GB)
Application Number:
PCT/GB2011/050149
Publication Date:
June 25, 2015
Filing Date:
January 31, 2011
Export Citation:
Assignee:
BAE SYSTEMS PLC (GB)
PESCOD CHRISTOPHER RALPH (GB)
MATTHEWS JAMES CHRISTOPHER GORDON (GB)
SMITH ANDREW JAMES (GB)
PESCOD CHRISTOPHER RALPH (GB)
MATTHEWS JAMES CHRISTOPHER GORDON (GB)
SMITH ANDREW JAMES (GB)
International Classes:
H04B7/06; H01Q1/24; H01Q1/27; H04B1/00; H04B1/38; H04B1/40; H04B7/08; H04W4/10
Domestic Patent References:
| WO2008008658A2 | 2008-01-17 |
Foreign References:
| US20050185707A1 | 2005-08-25 | |||
| US20080139156A1 | 2008-06-12 | |||
| US7003274B1 | 2006-02-21 |
Attorney, Agent or Firm:
BAE SYSTEMS PLC, GROUP IP DEPT (Farnborough Aerospace Centre, Farnborough Hampshire GU14 6YU, GB)
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