Title:
ANTENNA DEVICE FOR VEHICLE
Document Type and Number:
Japanese Patent JP2011091555
Kind Code:
A
Abstract:
To provide a vehicle antenna device that ensures stable antenna performance regardless of wiper operation.
A transparent conductive material 103 is stuck on a surface of a front glass 101 at a predetermined distance d from a metallic bonnet 102 which is a vehicle body of the vehicle 100. If a power supply unit 113 carries out unbalanced feed to the wiper 104a while using the bonnet 102 as ground, a slit part formed between the transparent conductive material 103 and the bonnet 102, and the wiper 104a carries out electromagnetic coupling.
Inventors:
UNO HIROYUKI
YUI TATSUNORI
NAGANO TAKEYA
SAITO YUTAKA
YUI TATSUNORI
NAGANO TAKEYA
SAITO YUTAKA
Application Number:
JP2009242574A
Publication Date:
May 06, 2011
Filing Date:
October 21, 2009
Export Citation:
Assignee:
PANASONIC CORP
International Classes:
H01Q1/32; H01Q1/22; H01Q1/44
Attorney, Agent or Firm:
Koichi Washida