EP 0358529 A1 19900314 - Antenna for mounting on a non-conductive surface, such as a window of a vehicle.
Title (en)
Antenna for mounting on a non-conductive surface, such as a window of a vehicle.
Title (de)
Antenne zur Befestigung auf einer nichtleitenden Oberfläche, z.B. auf der Scheibe eines Fahrzeuges.
Title (fr)
Antenne pour fixation sur une surface isolante telle qu'une glace d'un véhicule.
Publication
Application
Priority
GB 8821171 A 19880909
Abstract (en)
A communications antenna for mounting on a non-conductive surface, such as a window (20), of a vehicle, in which signals are passed between a transmission line (10) and the radiator element (21) of the antenna via a capacitive element (C3) comprising two conductive coupling elements (16, 17) disposed on opposite surfaces (18, 19) of the window (20). The transmission line (10) is coupled to the conductive coupling member (16) on the interior surface of the window (20) by a tuned circuit (L1 C1) and a further capacitative element (C2) which match the impedance of the transmission line (10) and maximises the transmission of signals between the antenna and the transmission line.
IPC 1-7
IPC 8 full level
H01Q 1/12 (2006.01)
CPC (source: EP)
H01Q 1/1285 (2013.01)
Citation (search report)
- [X] EP 0137391 A1 19850417 - ORION INDUSTRIES [US]
- [XP] US 4825217 A 19890425 - CHOI YOUNG J [KR]
- [A] US 4089817 A 19780516 - KIRKENDALL DENNIS
- [A] TELECOMMUNICATIONS & RADIO ENGINEERING, vol. 40/41, no. 10, October 1986, pages 144-146, Scripta Technica, Inc., Silver Spring, Maryland, US; G.G. CHAVKA et al.: "Synthesis of multiband matching networks"
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0358529 A1 19900314; AU 4205389 A 19900402; GB 8821171 D0 19881012; WO 9003048 A1 19900322
DOCDB simple family (application)
EP 89309161 A 19890908; AU 4205389 A 19890908; GB 8821171 A 19880909; GB 8901062 W 19890908