Title:
DIELECTRIC LENS ANTENNA AND WIRELESS DEVICE USING IT
Document Type and Number:
Japanese Patent JP3843994
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a dielectric lens antenna including a snow melting function without degrading the efficiency of a lens and a communication apparatus using it.
SOLUTION: In the dielectric lens antenna 10 constructed by attaching and holding a lens 2 made of a dielectric to and on a frame 3, a heating element 11 composed of a plurality of heating wires is formed on the front surface of the lens 2. A current is passed through the heating element 11 at the time of snowfall and snow accumulation, and snow attached on the front surface of the lens 2 of the dielectric lens antenna 10 can be melted by heat generated by a heating element.
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Inventors:
Yohei Ishikawa
Koichi Sakamoto
Hideaki Yamada
Fuminori Nakamura
Koichi Sakamoto
Hideaki Yamada
Fuminori Nakamura
Application Number:
JP2004318469A
Publication Date:
November 08, 2006
Filing Date:
November 01, 2004
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01Q1/02; H01Q15/08; G01S7/03; (IPC1-7): H01Q1/02; G01S7/03; H01Q15/08
Domestic Patent References:
| JP10132921A | ||||
| JP6038306U | ||||
| JP10056309A | ||||
| JP4150302A | ||||
| JP3073011U | ||||
| JP2097101A | ||||
| JP1264401A | ||||
| JP63036602A |