Title:
WIRELESS APPARATUS
Document Type and Number:
Japanese Patent JP3916068
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a wireless apparatus which is entirely downsized, and the characteristic of the antenna system of which is enhanced.
SOLUTION: Forming a notch part 6 to a shield case 4 made of a conductive material for covering and accommodating a high frequency wireless circuit 3 provided on a printed wiring board 2 into the inside and feeding power to the notch part 6 act the shield case 4 like a slot antenna and also shield unnecessary electromagnetic waves emitted from the high frequency wireless circuit 3 by the shield case 4. Or part of the notch 6 formed to the shield case 4 is opened to form a notch antenna. The entire wireless apparatus is downsized by acting the shield case 4 like an electromagnetic shield member and also like the slot antenna or the notch antenna in this way.
Inventors:
Hideaki Tokaibayashi
Application Number:
JP2002321981A
Publication Date:
May 16, 2007
Filing Date:
November 06, 2002
Export Citation:
Assignee:
Sony Ericsson Mobile Communications Inc.
International Classes:
H01Q1/24; H01Q1/44; H01Q1/52; H01Q13/10; H04B1/38; H04B1/3822; H04M1/02; (IPC1-7): H04B1/38; H01Q1/44; H01Q13/10; H04M1/02
Domestic Patent References:
| JP2000068866A | ||||
| JP2002076757A | ||||
| JP11251948A | ||||
| JP11308030A | ||||
| JP2001292026A | ||||
| JP5243837A | ||||
| JP2000196344A | ||||
| JP11284431A | ||||
| JP9116240A | ||||
| JP7176646A | ||||
| JP2001298321A | ||||
| JP2002084117A |
Attorney, Agent or Firm:
Atsuro Sasaki