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公开(公告)号：US09960483B2
公开(公告)日：2018-05-01
申请号：US14770132
申请日：2013-12-06
发明人： Hiroshi Toyao , Jun Uchida
摘要： An antenna (10) includes: a first radiant element (3) and a second radiant element (4), which are connected to an antenna feeding point (2); a first branch part (5a), one end of which is connected to the first radiant element (3) at a position not corresponding to an end portion of the first radiant element (3); a second branch part (5b), one end of which is connected to the second radiant element (4) at a position not corresponding to an end portion of the second radiant element (4); and a connection element (7), which connects part of the first radiant element (3) and part of the second radiant element (4). A different end of the first branch part (5a) and a different end of the second branch part (5b) face each other and form a capacitor part. The capacitor part is positioned outside the area surrounded by the connection element (7), the first radiant element (3), and the second radiant element (4). Part of the first radiant element (3), part of the second radiant element (4), the first branch part (5a), the second branch part (5b), and the capacitor part form a split ring resonator (8).
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公开(公告)号：US10403976B2
公开(公告)日：2019-09-03
申请号：US15506811
申请日：2015-09-11
申请人： NEC Platforms, Ltd.
发明人： Jun Uchida
IPC分类号： H04B1/00 , H01Q5/321 , H01Q1/38 , H01Q5/371 , H01Q9/42 , H01Q5/328 , H01Q5/378 , H04B1/69 , H04B1/707 , H04B7/08
摘要： In order to provide an antenna that is small and resonates at a plurality of frequencies, an antenna according to the present invention is provided with: a first conductor of a ring shape, having an air gap; a second conductor arranged inside the ring, with both ends of the second conductor connected to the first conductor, having a first gap; and a third conductor arranged in a region surrounded by a part not including the air gap out of the first conductor, and the second conductor, with both ends connected to the first conductor, having a second gap, and a value obtained by multiplying a length of an outer periphery of a region surrounded by a part including the air gap out of the first conductor, and the third conductor, by capacitance of the air gap is different from a value obtained by multiplying a length of an outer periphery of a region surrounded by the second conductor, the third conductor, and the first conductor, by capacitance of the first gap.
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公开(公告)号：US09685696B2
公开(公告)日：2017-06-20
申请号：US14767329
申请日：2014-02-19
申请人： NEC Platforms, Ltd.
发明人： Jun Uchida
摘要： A split section (6a) has an auxiliary conductor pattern (11a) formed on one end of a substantially C-shaped section of a first split-ring section, and a split (12a) formed between the auxiliary conductor pattern (11a) and the other end of the substantially C-shaped section. A split section (6b) has an auxiliary conductor pattern (11b) formed on one end of a substantially C-shaped section of a second split-ring section, and a split (12b) formed between the auxiliary conductor pattern (11b) and the other end of the substantially C-shaped section. The auxiliary conductor pattern (11b) is formed so as to face the auxiliary conductor pattern (11a). The split (12b) is formed so as to be opposite from the position facing the split (12a) and consequently sandwich the auxiliary conductor pattern (11b) therebetween. A split (14) is formed between the auxiliary conductor pattern (11a) and the auxiliary conductor pattern (11b), stores electrical charges having different polarity, and functions as a large-capacity capacitor. As a result, it is possible to inexpensively produce a compact antenna and electric device.
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