Title (en)

Quadrifilar helical antenna

Title (de)

Wendelantenne mit vier gewendelten Strahlerelementen

Title (fr)

Antenne hélicoïdale quadrifilaire

Publication

EP 1833116 A3 20111228 (EN)

Application

EP 07075467 A 20050524

Priority

• EP 05076197 A 20050524
• US 57452004 P 20040526
• US 99938504 A 20041130

Abstract (en)

[origin: EP1833116A2] An antenna (13) having a plurality of elongated conductors (18) is disclosed. The elongated conductors (18) have a substantially straight portion (26) and a substantially helical portion (28).

IPC 8 full level

H01Q 1/36 (2006.01); H01Q 11/08 (2006.01)

CPC (source: EP)

H01Q 1/362 (2013.01); H01Q 11/08 (2013.01)

Citation (search report)

• [A] GB 962100 A 19640624 - COUNTY COUNCIL OF THE ADMINIST
• [A] US 2899549 A 19590811

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 1833116 A2 20070912; EP 1833116 A3 20111228; EP 1833116 B1 20130717

DOCDB simple family (application)

EP 07075467 A 20050524