(19)

(11)

EP 2 748 893 A1

(12)

(43) Date of publication: 02.07.2014 Bulletin 2014/27 (21) Application number: 12753577.1 (22) Date of filing: 16.08.2012

(51) International Patent Classification (IPC):  H01Q 1/52(2006.01) H01Q 15/00(2006.01) (86) International application number: PCT/GB2012/052010 (87) International publication number: WO 2013/027029 (28.02.2013 Gazette 2013/09)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 24.08.2011 GB 201114625 (71) Applicant: Microsoft Corporation Redmond, Washington 98052-6399 (US)	(72) Inventor: HARPER, Marc Cambridge CB5 9AR (GB) (74) Representative: Goddar, Heinz J.  Boehmert & Boehmert Pettenkoferstrasse 20-22 80336 München 80336 München (DE)