Global Patent Index - EP 1319229 A1

EP 1319229 A1 2003-06-18 - VARIABLE-PITCH HELICAL ANTENNA, AND CORRESPONDING METHOD

Title (en)

VARIABLE-PITCH HELICAL ANTENNA, AND CORRESPONDING METHOD

Title (de)

HELIXANTENNE MIT VERSCHIEDENEN PITCHLÄNGEN, UND ZUGEHÖRIGES HERSTELLUNGSVERFAHREN

Title (fr)

ANTENNE HELICO DALE A PAS VARIABLE, ET PROCEDE CORRESPONDANT

Publication

EP 1319229 A1 (FR)

Application

EP 01969903 A

Priority

  • FR 0102873 W
  • FR 0011830 A

Abstract (en)

[origin: WO0223673A1] The invention concerns a helical antenna, comprising at least a helix consisting of at least two radiating strands, at least one of said strands consisting of at least two segments, the winding angles of at least two of said segments being different and randomly or pseudo-randomly determined with global optimising means.

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

G11B 20/14

IPC 8 full level (invention and additional information)

H01Q 21/24 (2006.01); H01Q 1/38 (2006.01); H01Q 11/08 (2006.01)

CPC (invention and additional information)

H01Q 11/08 (2013.01)

Citation (search report)

See references of WO 0223673A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

WO 0223673 A1 20020321; AU 9003201 A 20020326; EP 1319229 A1 20030618; FR 2814285 A1 20020322; JP 2004509536 A 20040325; US 2003184496 A1 20031002; US 6836257 B2 20041228

INPADOC legal status


2007-10-24 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20070503

2006-11-22 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20050916

2003-06-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030210

2003-06-18 [AK] DESIGNATED CONTRACTING STATES:

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2003-06-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI