(19)

(11)

EP 1 188 200 A1

(12)

(43) Date of publication: 20.03.2002 Bulletin 2002/12 (21) Application number: 00938358.9 (22) Date of filing: 02.06.2000

(51) International Patent Classification (IPC)7: H01Q 1/24 (86) International application number: PCT/CA0000/635 (87) International publication number: WO 0076/023 (14.12.2000 Gazette 2000/50)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 02.06.1999 US 137510 P (71) Applicant: UNIVERSITY OF WATERLOO Waterloo,Ontario N2L 3G1 (CA)	(72) Inventor: FAYYAZ, Nader Nepean, Ontario K2H 1B9 (CA) (74) Representative: Beck, Simon Antony et al Withers & Rogers,Goldings House,2 Hays Lane London SE1 2HW London SE1 2HW (GB)