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21. 发明专利

JP2002237762A RADIO EQUIPMENT 失效
公开(公告)号：JP2002237762A
公开(公告)日：2002-08-23
申请号：JP2001031168
申请日：2001-02-07
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： MAJIMA NOBUAKI , NISHIKIDO TOMOAKI , SAITO YUTAKA , KOYANAGI YOSHIO
IPC分类号： H04B1/38 , H04M1/02 , H04W88/02 , H04Q7/32
摘要： PROBLEM TO BE SOLVED: To improve an antenna gain when portable equipment on which radio equipment is mounted is held in 4 hand, or placed on a metallic desk. SOLUTION: A Bluetooth adapter 106 being radio equipment is provided with an upper connected part 107 connected to the upper part of the main body of a portable telephone set 101 being portable equipment, a lower connected part 108 connected to a connector 105 at the lower part of the main body of the portable telephone set 101, a radio circuit part 112 arranged along the back side of the main body of the portable telephone set 101 in a connecting part 109 for connecting both connected parts at the back side of the main body of the portable telephone set 101, and a mono-pole antenna 114 being a built-in antenna element arranged in a lower connecting part 110 whose radiation edge is extended through the lower part of the connector 110 toward the front side of the main body of the portable telephone set 101. Therefore, it is possible to improve the gain of the built-in antenna element even at the time of gripping the whole part of the Bluetooth adapter 106 and the portable telephone 101 on which this adapter is mounted.

22. 发明专利

JP2003179426A ANTENNA DEVICE AND PORTABLE RADIO SYSTEM 审中-公开
公开(公告)号：JP2003179426A
公开(公告)日：2003-06-27
申请号：JP2001380034
申请日：2001-12-13
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： SAITO YUTAKA , MAJIMA NOBUAKI , KOSHI MASASHI , KOYANAGI YOSHIO
IPC分类号： H01Q13/08 , H01Q5/10 , H01Q5/335 , H01Q5/371 , H04B1/38 , H04B1/3822 , H01Q5/01
摘要： PROBLEM TO BE SOLVED: To provide an antenna device for obtaining a wide band width in a plurality of frequency bands. SOLUTION: A part of a reverse-F antenna element made up of a flat element 1 and a flat element 2 is connected electrically through a short-circuiting part 3 to a grounding plate 6. A series resonance circuit 9 made up of inductance 7 and a capacitor 8 connected in series and a serial resonance circuit 12 made up of inductance 10 and a capacitor 11 connected in series are connected in parallel with a power feed unit 4. The other end of the parallel connection of the series resonance circuits 9 and 12 is connected to the power feed terminal 13, and the radio circuit is fed with power through the power feed terminal 13. COPYRIGHT: (C)2003,JPO

23. 发明专利

JP2003110453A PORTABLE RADIO APPARATUS 审中-公开
公开(公告)号：JP2003110453A
公开(公告)日：2003-04-11
申请号：JP2001302865
申请日：2001-09-28
申请人： MATSUSHITA ELECTRIC IND CO LTD
发明人： KOSHI MASASHI , SAITO YUTAKA , KOYANAGI YOSHIO , YAMADA KENICHI , NISHIKIDO TOMOAKI , MAJIMA NOBUAKI
IPC分类号： H01Q13/08 , H01Q1/08 , H01Q1/20 , H01Q1/24 , H04B1/38 , H04B1/3822 , H04M1/02 , H04M1/03
摘要： PROBLEM TO BE SOLVED: To provide a portable radio apparatus having high antenna performance during call time and capable of making the body thinner during non-call time. SOLUTION: The portable radio apparatus includes a reverse F-antenna 5 provided on a base plate inside an upper frame 1, a parasitic element 6 provided away at a prescribed distance from the reveres F-antenna 5, and a means for projecting the parasitic element 6 outside from the upper frame box 1 in conjunction with a prescribed operation. The means for projecting the parasitic element 6 from the upper frame box 1 includes a wire 10A with one end connected on the side of the parasitic element 6 inside the upper frame 1 and the other end connected on the side of a lower frame 2.

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