Title:
ANTENNA DEVICE
Document Type and Number:
Japanese Patent JP2004015740
Kind Code:
A
Abstract:
To obtain an antenna device which can realize required radiation characteristics without increasing the occupation area even in the case of using a ring patches which can be commonly used for a plurality of frequencies or modes.
In the antenna device, a plurality of ring patches 1, 2, 10 and 11 in the same or different excitation modes or a plurality of ring patches 1, 2, 10 and 11 of the same or different operating frequencies are coaxially provided over a ground conductor 3 and connected to the ground conductor 3 by using a common connection conductor 18. A power feeder circuit to be used therefor is also provided.
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Inventors:
KAWACHI MASAHARU
MIZUNO TOMOHIRO
SATO HIROYUKI
NAITO IZURU
IIDA AKIO
BETSUDAN SHINICHI
KATAKI TAKASHI
MIZUSAWA HIROO
MIZUNO TOMOHIRO
SATO HIROYUKI
NAITO IZURU
IIDA AKIO
BETSUDAN SHINICHI
KATAKI TAKASHI
MIZUSAWA HIROO
Application Number:
JP2002170432A
Publication Date:
January 15, 2004
Filing Date:
June 11, 2002
Export Citation:
Assignee:
MITSUBISHI ELECTRIC CORP
KANAZAWA INST OF TECHNOLOGY
KANAZAWA INST OF TECHNOLOGY
International Classes:
H01Q21/30; H01Q3/30; H01Q5/10; H01Q13/08; (IPC1-7): H01Q21/30; H01Q3/30; H01Q5/01; H01Q13/08
Attorney, Agent or Firm:
Hiroaki Tazawa
Konobu Kato
Konobu Kato
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