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公开(公告)号：JP2011030196A
公开(公告)日：2011-02-10
申请号：JP2010086819
申请日：2010-04-05
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To improve the functions of a multi-band loop antenna. SOLUTION: The multi-band loop antenna comprises: a ground board; a radiating element constituted of a plate-like conductor which is connected with the ground board at one terminal to form a first loop via the ground board and to form a second loop of a resonant frequency lower than that of the first loop on the first loop; and a power feed point connected to the ground board and the radiating element, respectively. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：提高多频带环形天线的功能。 解决方案：多频带环形天线包括：接地板; 辐射元件，其由在一个端子处与接地板连接的板状导体构成，以经由接地板形成第一环路，并形成谐振频率低于第一环路上的第一环路的谐振频率的第二环路 ; 以及分别连接到接地板和辐射元件的馈电点。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2009296468A
公开(公告)日：2009-12-17
申请号：JP2008149900
申请日：2008-06-06
Inventor： TAMAOKI NAOYA , YAMAMOTO SHIO , HARADA TAKASHI , KURAMOTO AKIO , OKANO YOSHINOBU
Abstract: PROBLEM TO BE SOLVED: To provide the optimum antenna structure for a wearable antenna.
SOLUTION: In an antenna wherein an antenna plane consists of a conductive plane, the antenna plane consisting of a conductive plane can spread out and the antenna plane consisting of a conductive plane is formed with a main slit having an open end opened to part of an edge of the conductive plane and a short-circuited end short-circuited by the conductive plane and a sub-slit which cuts across the main slit. The sub-slit has folded-back portions in the end parts close to edges of the conductive plane. Since the antenna plane consisting of the conductive plane can spread out, when the antenna is worn, for example, on clothes, the antenna plane consisting of the conductive plane spreads out in conformity with the body shape of a wearer and functions as an antenna and moreover, the wearer of the antenna feels a better sense of comfort with the antenna.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：为可穿戴天线提供最佳天线结构。 解决方案：在天线中天线平面由导电平面组成的天线中，由导电平面构成的天线平面可以展开，由导电平面构成的天线平面形成有主开口， 导电平面的边缘的一部分和由导电平面短路的短路端和横切主狭缝的子狭缝。 子狭缝在靠近导电平面的边缘的端部中具有折回部分。 由于由导电平面组成的天线平面可以展开，例如在衣服上穿戴天线时，由导电平面组成的天线平面与佩戴者的身体形状相符，并且起天线的作用 此外，天线的穿戴者感觉到更好的天线感觉。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2007312024A
公开(公告)日：2007-11-29
申请号：JP2006138061
申请日：2006-05-17
Applicant: Nec Corp , Nec Electronics Corp , Necエレクトロニクス株式会社 , 日本電気株式会社
Inventor： KURAMOTO AKIO , MOCHIZUKI TAKUSHI
Abstract: PROBLEM TO BE SOLVED: To provide a compact, thin, and bent broad-band antenna that is effective in a broad band and can be manufactured inexpensively, and to provide a method for using the broad-band antenna.
SOLUTION: The bent broad-band antenna comprises: a planar conductor 1 where an external shape is rectangular and a slit 2 oriented in a direction orthogonally crossing a longitudinal direction, a side conductor 3 rising perpendicularly from a side in parallel with the slit 2 of the planar conductor 1, and a back conductor 4 installed in parallel with the planar conductor 1 from the edge of the side conductor 3 toward the side of the slit 2. A coaxial outer conductor 7 of a coaxial cable 5 is connected to the planar conductor 1 electrically at a side opposite to the side conductor 3 while sandwiching the slit 2. A coaxial center conductor 6 of the coaxial cable 5 is connected to the planar conductor 1 electrically at the same side as the side conductor 3.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种在宽带上有效并且可以廉价制造的紧凑，薄且弯曲的宽带天线，并且提供使用宽带天线的方法。 解决方案：弯曲的宽带天线包括：外形为矩形的平面导体1和沿垂直于纵向方向的方向定向的狭缝2，侧面导体3从与 平面导体1的狭缝2和从侧面导体3的边缘向狭缝2的侧面平行地安装的背面导体4.同轴电缆5的同轴外部导体7连接到 平面导体1在夹着狭缝2的同时与侧导体3相对的一侧电气地电连接。同轴电缆5的同轴中心导体6在与侧导体3相同的一侧电连接到平面导体1。 >版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2007311886A
公开(公告)日：2007-11-29
申请号：JP2006136431
申请日：2006-05-16
Inventor： KURAMOTO AKIO
IPC: H01Q9/28
Abstract: PROBLEM TO BE SOLVED: To provide a broadband antenna composed by using a printed board and a simple fixture made of a sheet metal.
SOLUTION: The broadband antenna is composed of the printed board 1 and a radiating element 2 made of a sheet metal. The radiating element 2 is formed in a shape where a tubular cone is cut in the direction of a center axis, and has a margin at the portion of the cut edge. On the front and rear of the printed board 1, conductor patterns are arranged to the shape of the portion of the margin of the radiating element. The front conductor pattern is continuous to the rear one. The margin of the radiating element is connected along the front and rear conductor patterns on the printed board. A microstrip line for feeding power is arranged from the lower portion of the surface of the printed board to the upper conductor pattern. On the rear of the printed board, a ground conductor is formed at a portion corresponding to the rear side of the microstrip line.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 要解决的问题：提供一种通过使用印刷板和由金属板制成的简单固定器构成的宽带天线。 解决方案：宽带天线由印刷板1和由金属板制成的辐射元件2组成。 辐射元件2形成为在中心轴线的方向上切割管状圆锥体的形状，并且在切割边缘的部分处具有边缘。 在印刷电路板1的前面和后面，导体图案被布置成辐射元件边缘部分的形状。 前导体图案与后面连接。 辐射元件的边缘沿着印刷电路板上的前后导体图案连接。 用于馈电的微带线从印刷板的表面的下部布置到上导体图案。 在印刷电路板的后部，在与微带线的背面对应的部分形成接地导体。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2006333025A
公开(公告)日：2006-12-07
申请号：JP2005153264
申请日：2005-05-26
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To obtain an antenna assembly having high success for the probability of communication with an RFID tag. SOLUTION: One or a plurality of flexible stripe antenna elements 2 is provided hanging from a gate 1 through which a cargo 501 passes while being carried on a belt conveyor 504. An RFID tag 500 stuck to the cargo 501 is arranged to traverse the vicinity of the antenna element 2 or to touch the antenna element 2. Since the antenna element is brought close to the RFID tag 500, communication distance to the RFID tag is shortened, thus ensuring success of communication. By making the antenna element 2 flexible and bendable, there is no need to take care about whether a passing RFID or a cargo 501 applied with the RFID collides against the antenna element 2, and the success probability of communication is enhanced rather by arranging the antenna element 2 to make the RFID or the cargo touch intentionally. COPYRIGHT: (C)2007,JPO&INPIT
Abstract translation: 要解决的问题：为了获得与RFID标签通信的可能性高的成功的天线组件。 解决方案：一个或多个柔性条状天线元件2设置为悬挂在货物501通过的门1上，同时携带在带式输送机504上。粘贴在货物501上的RFID标签500布置成横穿 天线元件2的附近或触摸天线元件2.由于天线元件靠近RFID标签500，所以与RFID标签的通信距离缩短，从而确保通信成功。 通过使天线元件2具有柔性和可弯曲性，就不用担心通过RFID或应用于RFID的货物501是否与天线元件2相撞，并且通信的成功概率被增强，而是通过布置天线 元件2使RFID或货物有意触摸。 版权所有（C）2007，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2002009542A
公开(公告)日：2002-01-11
申请号：JP2000188204
申请日：2000-06-22
Applicant: NEC CORP
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To provide an antenna system that reduces the assembling process and has excellent environment proofness and electric characteristics with a simple structure. SOLUTION: An enclosure 1 is made of a dielectric material. A lens 2 is made of a dielectric material and closely adhered to the enclosure 1. A horn 3 is made of a conductor, has an antenna feeding section 4 of a waveguide structure placed at the end of the horn 3 and presses the lens 2.
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公开(公告)号：JPH1117423A
公开(公告)日：1999-01-22
申请号：JP17033597
申请日：1997-06-26
Applicant: NEC CORP
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To provide an antenna attaching device with less vibration transmission at the time of attaching an antenna to a moving object. SOLUTION: This antenna attaching device is provided with a carrier bar 1 whose material is composed of metal or plastic, inside is void and filled with a foaming material or a buffer material 7 such as sponge or the like and cross section is square, rectangular, circular, elliptic or polygonal. The metallic wall of the upper surface and lower surface of the carrier bar 1 is removed at the optional position and the attaching base 3 of a flat plate provided with one or more vertically suspended hooks 6 whose tip is bent to an outer side on a lower part is inserted and fixed by the buffer material 4.
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公开(公告)号：JPH10150311A
公开(公告)日：1998-06-02
申请号：JP30902996
申请日：1996-11-20
Applicant: NEC CORP
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To provide a compact antenna fixture that mounts an antenna on a moving body by using a permanent magnet where the antenna does not come off even when a strong vibration and shock are given to the fixture. SOLUTION: Permanent magnets 2a, 2b fitted to legs 1a, 1b of an antenna 1 are attracted to an outer face of a mount metallic plate 3 being an outer case of a moving body. Electromagnets 6a, 6b that are opposed to the permanent magnets 2a, 2b are placed in an inner face of the mount metallic plate 3. A shock/vibration sensor 7 placed to the mount metallic plate 3 detects a vibration and shock of the moving body and inputs a resulting signal to a CPU 8. When the detected vibration and shock exceeds a prescribed value, the CPU 8 allows an electromagnet drive circuit 9 to excite the electromagnets 6a, 6b. Attracting force of the permanent magnets 2a, 2b coupled with the antenna 1 to the mount metallic plate 3 is increased by exciting the electromagnets 6a, 6b and the antenna 1 is not removed from the mount metallic plate 3 even when vibration and shock are applied.
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公开(公告)号：JPH07202551A
公开(公告)日：1995-08-04
申请号：JP33480993
申请日：1993-12-28
Applicant: NEC CORP
Inventor： KURAMOTO AKIO , TANABE KOSUKE , OOMURO MUNEHIKO
IPC: H01Q11/08
Abstract: PURPOSE:To cover a wide area and to cover a specific area in a wide frequency range by providing plural pairs of helical conductors and longitudinally arranging them to feed them independently of one another. CONSTITUTION:A long coaxial cable 1 and a short coaxial cable 2 are adjacently arranged, and a pair of helical conductors 3 and 4 and a pair of helical conductors 5 and 6 are arranged around only the upper part of the coaxial cable and around lower parts of coaxial cables 1 and 2 respectively. Helical conductors 3 to 6 are held by dielectric supports 7 so that the pair of helical conductors 3 and 4 and the pair of helical conauctors 5 and 6 keep desired intervals and pitches. A U balun 8 is used to supply the power to pairs of helical conductors 3 and 4 and helical conductrors 5 and 6 from upper parts of coaxial cables 1 and 2. A feeding connector 10 and a connector 11 are connected by coaxial cables 1 and 2.
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公开(公告)号：JPH0794935A
公开(公告)日：1995-04-07
申请号：JP23844593
申请日：1993-09-24
Applicant: NEC CORP
Inventor： KURAMOTO AKIO , TANABE KOSUKE
Abstract: PURPOSE:To extend a frequency band with a low axial ratio and to expand a frequency band with high matching by preparing at least one radiation conductor plate provided with specific peripheral conductor plates arranged along the periphery of the radiation conductor plate. CONSTITUTION:This plane antenna has a feeding means consisting of dielectric 6, a microstrip line 7 and an earth conductor plate 4 provided with a slot 5 and a radiation conductor plate 1 arranged on the earth conductor plate 4 via air as insulating body to which high frequency power is fed from the feeding means. The plate 1 has a circular shape and is provided with two peripheral conductor plates 2 extended from mutual opposed positions on the periphery of the plate 1 by length L in the same peripheral direction along the peripheral edge of the plate 1. The length L is about 0.45 times of propagation wavelength. Since at least one radiation conductor plate 1 provided with two peripheral conductor plates 2 extended by length >0.4 propagation wavelength the peripheral edge of the plate 1 is prepared, a circularly polarized wave can be radiated.
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