Title:
DATA PROCESSING TERMINAL, TERMINAL DESIGNING DEVICE AND METHOD, COMPUTER PROGRAM, INFORMATION STORING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2002/084893
Kind Code:
A1
Abstract:
An almost rectangular second ground plane (18) is connected to a first ground plane (17) mounting a data processing circuit thereon, and a wireless communication circuit (12) conducts wireless communication at a communication wavelength $g(l). While a portion extending from a ground connection means (14) up to a ground connection means (33) at the continuous edge of the second ground plane (18) works as an antenna, the longest interval a between a plurality of ground connection means (14, 33) at the continuous edge of the second ground plane (18) satisfies a < $g(l) / 2a (a: coefficient of at least 1), meaning that its resonance frequency is sufficiently higher than the communication frequency of the wireless communication circuit.
Inventors:
SASAKI HIDEKI (JP)
IMAZATO MASAHARU (JP)
MURAMATSU YUJI (JP)
KAKU TOSHIO (JP)
MURAMATSU HIDENORI (JP)
KURIYAMA TOSHIHIDE (JP)
YOSHINAGA TAKASHI (JP)
IMAZATO MASAHARU (JP)
MURAMATSU YUJI (JP)
KAKU TOSHIO (JP)
MURAMATSU HIDENORI (JP)
KURIYAMA TOSHIHIDE (JP)
YOSHINAGA TAKASHI (JP)
Application Number:
PCT/JP2002/002238
Publication Date:
October 24, 2002
Filing Date:
March 11, 2002
Export Citation:
Assignee:
NEC CORP (JP)
SASAKI HIDEKI (JP)
IMAZATO MASAHARU (JP)
MURAMATSU YUJI (JP)
KAKU TOSHIO (JP)
MURAMATSU HIDENORI (JP)
KURIYAMA TOSHIHIDE (JP)
YOSHINAGA TAKASHI (JP)
SASAKI HIDEKI (JP)
IMAZATO MASAHARU (JP)
MURAMATSU YUJI (JP)
KAKU TOSHIO (JP)
MURAMATSU HIDENORI (JP)
KURIYAMA TOSHIHIDE (JP)
YOSHINAGA TAKASHI (JP)
International Classes:
H01Q1/22; H05K1/14; H01Q9/04; H04B1/38; H04B1/3822; H04B15/00; H05K1/16; (IPC1-7): H04B1/38
Foreign References:
| JPH088618A | 1996-01-12 | |||
| JPH08148878A | 1996-06-07 |
Attorney, Agent or Firm:
Kaneda, Nobuyuki (16th Kowa Bldg. 9-20, Akasaka 1-chom, Minato-ku Tokyo, JP)
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