EP 1826874 A1 20070829 - Antenna device having enhanced reception sensitivity in wide bands
Title (en)
Antenna device having enhanced reception sensitivity in wide bands
Title (de)
Antenne mit verbesserter Empfangsempfindlichkeit im Breitband
Title (fr)
Antenne ayant une sensibilité de réception améliorée dans les bandes larges
Publication
Application
Priority
EP 06003972 A 20060227
Abstract (en)
An antenna device includes a prism-shaped or plate-shaped base member made of a dielectric or magnetic material, band-shaped first and second radiation conductors wound around the base member and connected to each other, and a third radiation conductor wound around the base member and connected to the second radiation conductor. The first and second radiation conductors include a plurality of divided portions, and the divided first radiation conductor portions are connected in series by first variable capacitance elements, the divided second radiation conductor portions are connected in series by second variable capacitance elements, and a node between the first and second radiation conductors is used as a feeding end.
IPC 8 full level
H01Q 23/00 (2006.01); H01Q 1/36 (2006.01); H01Q 1/38 (2006.01)
CPC (source: EP)
H01Q 1/362 (2013.01); H01Q 3/247 (2013.01)
Citation (search report)
- [X] EP 1557902 A1 20050727 - ALPS ELECTRIC CO LTD [JP]
- [Y] US 3573840 A 19710406 - GOUILLOU ROGER L, et al
- [Y] US 2002190906 A1 20021219 - KIM HYUN JAI [KR], et al
- [A] US 3427624 A 19690211 - WANSELOW ROBERT D, et al
Citation (examination)
- US 2004119647 A1 20040624 - HARIHARA YASUMASA [JP]
- US 6198442 B1 20010306 - RUTKOWSKI KIM [US], et al
- WO 9903166 A1 19990121 - ALLGON AB [SE], et al
Designated contracting state (EPC)
DE ES FR GB IT
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
DOCDB simple family (application)
EP 06003972 A 20060227