VARIABLE CAPACITANCE ANTENNA WITH CONSTANT IMPEDANCE MATCHING SYSTEM FOR MULTI FREQUENCY RECEPTION AND TRANSMISSION - Patent 0815614

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(11)

EP 0 815 614 A1

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(43)	Date of publication:
	07.01.1998 Bulletin 1998/02

(21)	Application number: 96910442.0

(22)	Date of filing: 13.03.1996

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International Patent Classification (IPC):

H01Q 9/ 14^{( . )}
H01Q 19/ 30^{( . )}

H01Q 9/ 16^{( . )}

(86)	International application number:
	PCT/US1996/003420

(87)	International publication number:
	WO 1996/029758 (26.09.1996 Gazette 1996/43)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

20.03.1995 US 19950406421
30.01.1996 US 19960594096

(71)	Applicant: Unwin, Art H.
	Bloomington,IL 61704 (US)

(72)	Inventor:
	Unwin, Art H. Bloomington,IL 61704 (US)

(74)	Representative: Flint, Adam
	W.H. Beck, Greener & Co., 7 Stone Buildings, Lincoln's Inn London WC2A 3SZ London WC2A 3SZ (GB)

(54)	VARIABLE CAPACITANCE ANTENNA WITH CONSTANT IMPEDANCE MATCHING SYSTEM FOR MULTI FREQUENCY RECEPTION AND TRANSMISSION