Title:
不平衡型アンテナ
Document Type and Number:
Japanese Patent JP3620044
Kind Code:
B2
Abstract:
An unbalanced antenna comprising: a single-layered dielectric substrate having two electrode surfaces, that is, upper-layer and lower-layer electrode surfaces; a plate-like radiation electrode and a transmission-line electrode connected to the radiation electrode that are formed on one of surfaces of the single-layered dielectric substrate; a ground electrode formed near a predetermined part of the other surface of the single-layered dielectric substrate, the predetermined part being opposed to the transmission-line electrode; at least one sub-ground electrode provided, so as to be adjacent to the ground electrode; an electric resistor connected between the ground electrode and the sub-ground electrode; and an electric-signal feed path provided between the transmission-line electrode and the ground electrode.
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Inventors:
Shinichi Kuroda
Application Number:
JP2002307910A
Publication Date:
February 16, 2005
Filing Date:
October 23, 2002
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H01Q1/38; H01Q1/48; H01Q9/04; H01Q9/06; H01Q9/30; H01Q9/36; H01Q9/38; H01Q9/40; H01Q17/00; (IPC1-7): H01Q9/38; H01Q1/48; H01Q9/40
Domestic Patent References:
| JP9223921A | ||||
| JP533151A |
Foreign References:
| US6014114 |
Attorney, Agent or Firm:
Masaaki Miyata
Eiji Yamada
Toshio Sawada
Eiji Yamada
Toshio Sawada