(19)
(11) EP 0 986 129 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
24.10.2001 Bulletin 2001/43

(43) Date of publication A2:
15.03.2000 Bulletin 2000/11

(21) Application number: 99117464.0

(22) Date of filing: 09.09.1999
(51) International Patent Classification (IPC)7: H01Q 1/12, H01Q 1/32
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 10.09.1998 JP 25726198
07.06.1999 JP 16013299

(71) Applicant: ASAHI GLASS COMPANY LTD.
Tokyo 100-8405 (JP)

(72) Inventors:
  • Terashima, Fumitaka
    Taketoyo-cho, Chita-gun, Aichi (JP)
  • Tabata, Kohji
    Taketoyo-cho, Chita-gun, Aichi (JP)

(74) Representative: Müller-Boré & Partner Patentanwälte 
Grafinger Strasse 2
81671 München
81671 München (DE)

   


(54) Glass antenna device for an automobile


(57) A glass antenna device for an automobile capable of receiving well signals in a long wave broadcast band and an FM broadcast band wherein a series resonance is generated by a coil 31 disposed between an antenna conductor 3 and a receiver 7, a parallel resonance is generated by a choke coil 9 disposed between a defogger 90 and the automobile body as the earth, and a high frequency choking coil 52 for blocking an FM broadcast band signal is connected between the antenna conductor 3 and the defogger 90 to prevent the FM broadcast band signal exited in the antenna conductor 3 from leaking to the automobile body.






Search report