Title:
アンテナ装置
Document Type and Number:
Japanese Patent JP6552791
Kind Code:
B2
Abstract:
An antenna device includes a rectangular conductor pattern that is disposed substantially in parallel to a ground plate at a predetermined distance, a short-circuit portion that electrically connects the conductor pattern to the ground plate, a first feeding point for transmitting and receiving a signal of a first frequency, and a second feeding point for transmitting and receiving a signal of a second frequency. An electric length of one side of the conductor pattern is set to half a wavelength of the second frequency. The short-circuit portion is disposed in the center portion of the conductor pattern, and an area of the conductor pattern forms a capacitance that resonates in parallel with an inductance provided in the short-circuit portion at the first frequency.
Inventors:
Masakazu Ikeda
Hiroaki Kuraoka
Hiroaki Kuraoka
Application Number:
JP2014137870A
Publication Date:
July 31, 2019
Filing Date:
July 03, 2014
Export Citation:
Assignee:
株式会社ＳＯＫＥＮ
株式会社デンソー
株式会社デンソー
International Classes:
H01Q13/08; H01Q5/10
Domestic Patent References:
| JP56141604A | ||||
| JP56141605A | ||||
| JP2003510935A | ||||
| JP1141026A | ||||
| JP10145133A |
Other References:
WONG他,COMPACT MICROSTRIP ANTENNA WITH DUAL-FREQUENCY OPERATION,ELECTRONICS LETTERS,1997年,Vol.33,No.8,pp.646-647
Attorney, Agent or Firm:
Taihei Nonobe
Kazuyuki Yahagi
Takanori Kubo
Kazuyuki Yahagi
Takanori Kubo