Global Patent Index - EP 0711001 B1

EP 0711001 B1 2001-12-12 - Frequency selective surface devices

Title (en)

Frequency selective surface devices

Title (de)

Frequenzselektive Oberflächenanordnung

Title (fr)

Dispositifs à surface sélective en fréquence

Publication

EP 0711001 B1 (EN)

Application

EP 95306717 A

Priority

GB 9422278 A

Abstract (en)

[origin: EP0711001A2] A frequency selective surface device separates or combines two channels by using two or three spaced layers of resonant elements such as loops 14 which are coupled and which have interactive effects between the layers such that the relatively broad transmission and reflection bands characteristic of the resonant elements are modified by reinforcement of multiple reflections between the layers in the manner of a Fabry-Perot etalon in order to increase the sharpness of the transition of the transmission and reflection bands and thereby to permit combination or separation of closely spaced channels. <IMAGE>

IPC 1-7 (main, further and additional classification)

H01Q 15/00

IPC 8 full level (invention and additional information)

H01Q 15/00 (2006.01)

CPC (invention and additional information)

H01Q 15/0026 (2013.01); H01Q 15/0033 (2013.01)

Citation (examination)

  • CAHILL ET AL: "Frequency selective surfaces for millimetre and submillimetre wave quasi optical demultiplexing", INTERNATIONAL JOURNAL OF INFRARED AND MILLIMETER WAVES, vol. 14, no. 9, September 1993 (1993-09-01), NEW YORK US, pages 1769 - 1700
  • WANNIER ET AL: "Quasioptical band-rejection filter at 100 Ghz", REVIEW OF SCIENTIFIC INSTRUMENTS, vol. 47, no. 1, January 1976 (1976-01-01), pages 56 - 58

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

EP 0711001 A2 19960508; EP 0711001 A3 19970716; EP 0711001 B1 20011212; DE 69524546 D1 20020124; DE 69524546 T2 20020508; GB 2294813 A 19960508; GB 2294813 B 19980415; GB 9422278 D0 19941221

INPADOC legal status


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2009-06-26 [REG FR CD] CHANGE OF NAME OR COMPANY NAME

2006-07-07 [REG FR TP] TRANSMISSION OF PROPERTY

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2002-12-04 [26N] NO OPPOSITION FILED

2002-01-24 [REF] CORRESPONDS TO:

- Document: DE 69524546 20020124

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

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2001-10-17 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: MATRA MARCONI SPACE UK LIMITED

1999-11-17 [17Q] FIRST EXAMINATION REPORT

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1998-03-11 [17P] REQUEST FOR EXAMINATION FILED

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1996-05-08 [AK] DESIGNATED CONTRACTING STATES:

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