A POLARISATION DISCRIMINATOR FOR ELECTROMAGNETIC WAVES WITH CIRCULAR POLARISATION AND DICHROIC SURFACES INCLUDING PLURALITIES OF SUCH DISCRIMINATORS - Patent 0557334

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EP 0 557 334 A1

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(43)	Date of publication:
	01.09.1993 Bulletin 1993/35

(21)	Application number: 91919656.0

(22)	Date of filing: 11.11.1991

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International Patent Classification (IPC):

H01Q 15/ 22^{( . )}

H01Q 15/ 24^{( . )}

(86)	International application number:
	PCT/EP1991/002132

(87)	International publication number:
	WO 1992/009118 (29.05.1992 Gazette 1992/12)

(84)	Designated Contracting States:
	DE FR GB

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Priority:

15.11.1990 IT 19290006789

(71)	Applicant: ALENIA AERITALIA & SELENIA S.p.A.
	I-80125 Napoli (IT)

(72)	Inventor:
	BRESCIANI, Daniele I-10141 Torino (IT)

(74)	Representative: Quinterno, Giuseppe, et al
	c/o JACOBACCI & PERANI S.p.A. Corso Regio Parco, 27 I-10152 Torino I-10152 Torino (IT)

(54)	A POLARISATION DISCRIMINATOR FOR ELECTROMAGNETIC WAVES WITH CIRCULAR POLARISATION AND DICHROIC SURFACES INCLUDING PLURALITIES OF SUCH DISCRIMINATORS