Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
GLASS ANTENNA FOR AUTOMOBILE
Document Type and Number:
Japanese Patent JPH07221525
Kind Code:
A
Abstract:

PURPOSE: To attain reception of a broadcast wave up to an FM radio broadcast and a TV UHF band broadcast by providing a 2nd antenna in capacitive coupling with at least part of a 1st antenna to an upper layer of a colored opaque band of a circumferential ridge of an automobile.

CONSTITUTION: A 1st antenna 3. whose horizontal length is 1100mm and whose vertical length is 110mm and a 1st antenna 3. whose vertical length is 260mm are screen-printed on a rear window glass pane l for an automobile toward a cabin side by using a conductive paste. After the paste is dried, a 2nd antenna 51 and a 2nd antenna 52 horizontal length is 100mm and whose vertical length is 500mm are screen-printed with feeding points 61, 62 and defrosting heater wires 2,...2 by using a conductive paste. Since the glass antenna formed in this way forms an antenna structured to be vertically 2-layers, the space is effectively utilized. The reception gain with respect to an FM radio broadcast and a TV UHF band broadcast is improved without decreasing the reception gain of the 2nd antenna in comparison with the 2nd antenna only of the upper layer by adding the 1st antenna to the lower layer.


Inventors:
MIYAZAKI YASUNOBU
NAGAYAMA YOJI
Application Number:
JP970894A
Publication Date:
August 18, 1995
Filing Date:
January 31, 1994
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CENTRAL GLASS CO LTD
International Classes:
H01Q21/28; H01Q1/32; H04B7/10; (IPC1-7): H01Q1/32; H01Q21/28
Attorney, Agent or Firm:
Eiichi Sakamoto