ANTENNA SYSTEM FOR ENHANCING THE COVERAGE AREA, RANGE AND RELIABILITY OF WIRELESS BASE STATIONS

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EP 0 943 164 A1

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(43)	Date of publication:
	22.09.1999 Bulletin 1999/38

(21)	Application number: 97909849.0

(22)	Date of filing: 15.09.1997

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International Patent Classification (IPC):

H01Q 21/ 30^{( . )}
H01Q 21/ 00^{( . )}
H01Q 21/ 24^{( . )}
H01Q 21/ 29^{( . )}
H04B 7/ 00^{( . )}
H04B 7/ 10^{( . )}

H01Q 3/ 24^{( . )}
H01Q 21/ 08^{( . )}
H01Q 21/ 28^{( . )}
H01Q 23/ 00^{( . )}
H04B 7/ 08^{( . )}

(86)	International application number:
	PCT/US1997/016338

(87)	International publication number:
	WO 1998/011626 (19.03.1998 Gazette 1998/11)

(84)	Designated Contracting States:
	DE FR GB IT SE

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Priority:

16.09.1996 US 19960026191P

(71)	Applicant: Raytheon Company
	Lewisville, TX 75067 (US)

(72)	Inventors:
	SANZGIRI, Shashikank, M. Plano, TX 75023 (US) VOLPI, John, P. Garland, TX 75040 (US) VESPA, Anthony, J. Richardson, TX 75080 (US) GILLILAND, Paul, C. Allen, TX 75002 (US)

(74)	Representative: UEXKÜLL & STOLBERG
	Patentanwälte Beselerstrasse 4 22607 Hamburg 22607 Hamburg (DE)

(54)	ANTENNA SYSTEM FOR ENHANCING THE COVERAGE AREA, RANGE AND RELIABILITY OF WIRELESS BASE STATIONS