Title:
CHIP ANTENNA
Document Type and Number:
WIPO Patent Application WO/2007/099926
Kind Code:
A1
Abstract:
It is intended to provide a chip antenna, which is enabled by raising an effective
specific dielectric constant to reduce the chip size and the packaging area.
The chip antenna (10) includes a rectangular substrate (11) made of a dielectric
material, feeding electrodes (12) formed on one principal face (11a) of the substrate
(11), strip-line shaped radiation electrodes (13) of a length of about λ/4
so formed on the principal face (11a) of the substrate (11) as to confront the feeding
electrodes (12) through a gap (g), stationary electrodes (14a, 14b) formed on
the other principal face (11b) of the substrate (11), and through holes (15a,
15b) extending through the inside of the substrate (11). The electrodes (12,
13) are not connected with the stationary electrodes (14a, 14b) through the side
faces of the substrate (11), but the electrodes on the upper and lower faces are
electrically connected by through hole electrodes extending from the one principal
face (11a) to the other principal face (11b).
Inventors:
HARIHARA YASUMASA
Application Number:
PCT/JP2007/053569
Publication Date:
September 07, 2007
Filing Date:
February 27, 2007
Export Citation:
Assignee:
TDK CORP (JP)
HARIHARA YASUMASA
HARIHARA YASUMASA
International Classes:
H01Q1/38; H01Q9/42; H01Q13/08
Foreign References:
| JPH05347509A | 1993-12-27 | |||
| JP2000278028A | 2000-10-06 | |||
| JP2005080229A | 2005-03-24 | |||
| JPH05275903A | 1993-10-22 |
Attorney, Agent or Firm:
WASHIZU, Mitsuhiro et al. (5-1 Ginza 1-Chome, Chuo-k, Tokyo 61, JP)
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