EP 1895619 A1 20080305 - Low frequency band helical antenna having an open stub
Title (en)
Low frequency band helical antenna having an open stub
Title (de)
Mit einer Stichleitung versehene Wendelantenne für niedrige Frequenzen
Title (fr)
Antenne hélicoidale à charge de souche pour basse fréquence
Publication
Application
Priority
KR 20060082505 A 20060829
Abstract (en)
A low frequency band helical antenna comprising an open stub is provided, which includes a helix formed on at least a part; and a radiator comprising the open stub formed on one end in parallel relation with a ground. As a result, a compact helical antenna, which is sized to a quarter length of a monopole antenna, can be provided. Additionally, efficiency of the antenna is improved and the frequency bandwidth can be increased, by increasing the input resistance and decreasing the input reactance.
IPC 8 full level
H01Q 1/36 (2006.01); H01Q 11/08 (2006.01)
CPC (source: EP KR)
H01Q 1/24 (2013.01 - KR); H01Q 1/362 (2013.01 - EP KR); H01Q 9/32 (2013.01 - KR); H01Q 11/08 (2013.01 - EP)
Citation (applicant)
- ROSSMAN C ET AL.: "Low Profile, Single Feed, Tri-Filar, Linear- or Circularly-Polarized Helix Antenna", IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM. 2003 DIGEST. APS, 22 June 2003 (2003-06-22)
- IEEE, vol. 4, 22 June 2003 (2003-06-22), pages 862 - 865
Citation (search report)
- [A] WO 9839816 A1 19980911 - SAAB ERICSSON SPACE AB [SE], et al
- [A] WO 0199228 A1 20011227 - ERICSSON TELEFON AB L M [SE], et al
- [A] US 2003112203 A1 20030619 - SUGANTHAN SHANMUGANTHAN [GB], et al
- [A] US 2003210206 A1 20031113 - PHILLIPS JAMES P [US], et al
- [X] ROSSMAN C ET AL: "Low profile, single feed, tri-filar, linear- or circularly- polarized helix antenna", IEEE ANTENNAS AND PROPAGATION SOCIETY INTERNATIONAL SYMPOSIUM. 2003 DIGEST. APS. COLUMBUS, OH, JUNE 22 - 27, 2003, NEW YORK, NY : IEEE, US, vol. VOL. 4 OF 4, 22 June 2003 (2003-06-22), pages 862 - 865, XP010746469, ISBN: 0-7803-7846-6
- [A] NOGUCHI K ET AL: "A COMPACT BROAD-BAND HELICAL ANTENNA WITH TWO-WIRE HELIX", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 51, no. 9, September 2003 (2003-09-01), pages 2176 - 2181, XP001172228, ISSN: 0018-926X
Designated contracting state (EPC)
GB
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1895619 A1 20080305; JP 2008061243 A 20080313; JP 4711089 B2 20110629; KR 100822470 B1 20080416; KR 20080019942 A 20080305
DOCDB simple family (application)
EP 06127215 A 20061227; JP 2007220526 A 20070828; KR 20060082505 A 20060829