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公开(公告)号：JP2011142504A
公开(公告)日：2011-07-21
申请号：JP2010001985
申请日：2010-01-07
Inventor： KURAMOTO AKIO , IWANAKA DAISUKE , FUKUDA JUNICHI
Abstract: PROBLEM TO BE SOLVED: To provide a parabolic antenna excellent in radio wave absorption characteristics and durability even at a reduced cost. SOLUTION: In the parabolic antenna 1 including a reflector 2, a shroud 3 and a primary radiator 4, a plurality of plate-like radio wave absorbers 10 made of a wood piece are arranged side by side on the inner peripheral surface of the shroud 3. Also, by adjusting the shape and thickness of the radio wave absorbers 10, the radio wave absorption characteristics are improved, and side lobe characteristics are improved. Further, by securing the interval D1 of the radio wave absorbers 10, the reflection characteristics of the oblique incidence of radio waves are improved. COPYRIGHT: (C)2011,JPO&INPIT
Abstract translation: 要解决的问题：即使以降低的成本，也提供具有优异的无线电波吸收特性和耐久性的抛物面天线。 解决方案：在包括反射器2，护罩3和初级辐射器4的抛物面天线1中，由木片制成的多个板状无线电波吸收器10并排地布置在 另外，通过调整无线电波吸收体10的形状和厚度，提高了电波吸收特性，提高了旁瓣特性。 此外，通过确保无线电波吸收体10的间隔D1，提高了无线电波的倾斜入射的反射特性。 版权所有（C）2011，JPO＆INPIT
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公开(公告)号：JP2010200207A
公开(公告)日：2010-09-09
申请号：JP2009045248
申请日：2009-02-27
Applicant: Nec Corp , Shibaura Institute Of Technology , 学校法人 芝浦工業大学 , 日本電気株式会社
Inventor： TAURA TORU , YAMAMOTO SHIO , KURAMOTO AKIO , HANGUI EIJI , HARADA TAKASHI , IWASAKI HISAO
Abstract: PROBLEM TO BE SOLVED: To provide a small sized loop antenna having wideband characteristics. SOLUTION: The multiple loop antenna has a feeding portion, a first loop to be fed from the feeding portion, a second loop created inside of the first loop, to be reversed-phase fed from the feeding portion, and a third loop created at least one of inside of the second loop and outside of the first loop. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供具有宽带特性的小尺寸环形天线。 解决方案：多环天线具有馈电部分，从馈电部分馈送的第一环路，在第一环路内部产生的第二环路，以从馈电部分反相馈送;以及第三环路 创建了第二循环内部和第一循环之外的至少一个。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010200200A
公开(公告)日：2010-09-09
申请号：JP2009045168
申请日：2009-02-27
Applicant: Nec Corp , Shibaura Institute Of Technology , 学校法人 芝浦工業大学 , 日本電気株式会社
Inventor： YAMAMOTO SHIO , TAURA TORU , HANGUI EIJI , HARADA TAKASHI , KURAMOTO AKIO , IWASAKI HISAO
Abstract: PROBLEM TO BE SOLVED: To provide a wearable antenna which is widened in band and reducible in size.
SOLUTION: A conductive sheet has base line slits, inclined slits and additional slits. By this, the wearable antenna reducible in size can be obtained.
COPYRIGHT: (C)2010,JPO&INPITAbstract translation: 要解决的问题：提供一种可扩展的带状和可缩小尺寸的可穿戴天线。 解决方案：导电片具有基线狭缝，倾斜狭缝和附加狭缝。 由此，可以获得尺寸可降低的可穿戴天线。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2010109698A
公开(公告)日：2010-05-13
申请号：JP2008279772
申请日：2008-10-30
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To provide a reconfigurable antenna which is adaptive to a frequency N times as high as a fundamental frequency, and also foldable. SOLUTION: The antenna includes: a piece of insulating fabric; and two sets of pieces of conductive fabric arranged on the piece of insulating fabric. One of sets of the pieces of conductive fabric is arranged axisymmetrically to the other set of the pieces of conductive fabric with respect to the line of symmetry. In each set, the pieces of conductive fabric can be connected to and separated from each other. COPYRIGHT: (C)2010,JPO&INPIT
Abstract translation: 要解决的问题：提供适应于基本频率的N倍的频率的可重新配置的天线，并且也是可折叠的。
解决方案：天线包括：一块绝缘织物; 以及布置在绝缘织物上的两组导电织物。 一组导电织物相对于对称线轴对称地布置成另一组导电织物片。 在每组中，导电织物可以彼此连接并分离。 版权所有（C）2010，JPO＆INPIT
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公开(公告)号：JP2008295019A
公开(公告)日：2008-12-04
申请号：JP2008030440
申请日：2008-02-12
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To provide a power feed device for an antenna fitting to clothes of a user, which is not easily damaged. SOLUTION: The present invention relates to a power feed device wherein a coaxial cable is used for feeding, a center conductor of the coaxial cable is AC-connected to a first radiation element at least by capacity coupling while an outer conductor of the coaxial cable is AC-connected to a second radiation element at least by capacity coupling. The power feed device comprises a first power feed unit between the first radiation element and the center conductor and comprises a second power feed unit between the second radiation element and the outer conductor. The first power feed unit comprises a feeding conductor in contact with the center conductor and an insulator held between the feeding conductor and the first radiation element, and the second power feed unit comprises a feeding conductor in contact with the outer conductor and an insulator held between the feeding conductor and the second radiation element. COPYRIGHT: (C)2009,JPO&INPIT
Abstract translation: 要解决的问题：提供一种用于不容易损坏的用户的衣服的天线配件的馈电装置。 解决方案：本发明涉及一种馈电装置，其中同轴电缆用于馈电，同轴电缆的中心导体至少通过电容耦合而与第一辐射元件交流连接，而外部导体 同轴电缆至少通过容量耦合与第二辐射元件交流连接。 供电装置包括在第一辐射元件和中心导体之间的第一馈电单元，并且包括在第二辐射元件和外导体之间的第二馈电单元。 第一馈电单元包括与中心导体接触的馈电导体和保持在馈电导体和第一辐射元件之间的绝缘体，并且第二馈电单元包括与外导体接触的馈电导体和保持在 馈电导体和第二辐射元件。 版权所有（C）2009，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2008278150A
公开(公告)日：2008-11-13
申请号：JP2007118619
申请日：2007-04-27
Inventor： KURAMOTO AKIO
CPC classification number: H01Q1/273 , H01Q1/2291 , H01Q9/28 , H01Q9/285
Abstract: PROBLEM TO BE SOLVED: To provide a wideband antenna which can be installed near a human body and can obtain wideband characteristics without causing degradation in input impedance.
SOLUTION: The wideband antenna is characterized in that two planar radiation elements having roughly a right triangle shape are disposed line-symmetrically in relation to one of two sides other than an oblique side, the first radiation element of the two radiation element is disposed at a position moved in parallel to the second radiation element in a direction of the center line of line-symmetry, and the two radiation elements are supplied with power at the prescribed positions of the sides facing each other.
COPYRIGHT: (C)2009,JPO&INPITAbstract translation: 要解决的问题：提供可以安装在人体附近并且可以获得宽带特性而不会导致输入阻抗降低的宽带天线。 解决方案：宽带天线的特征在于，具有大致直角三角形形状的两个平面辐射元件相对于斜边之外的两个侧面之一线对称设置，两个辐射元件的第一辐射元件 设置在沿着线对称中心线的方向平行移动到第二辐射元件的位置，并且两个辐射元件在彼此相对的侧面的规定位置处被供电。 版权所有（C）2009，JPO＆INPIT
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公开(公告)号：JP2007324841A
公开(公告)日：2007-12-13
申请号：JP2006151722
申请日：2006-05-31
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 Z-type broadband antenna having a simple configuration consisting of a metal plate, a dielectric printed board, etc.
SOLUTION: The Z-type broadband antenna comprises a radiating element 1 consisting of a conductor plate having a Z-shaped cross section, and a ground 5 which consists of a conductor plate and is arranged away from the end of the bottom face of the radiating element by a gap for forming an electrostatic capacity. A coaxial cable 10 is arranged along the ground, and a coaxial central conductor 12 of the coaxial cable 10 is connected to the bottom face 4 of the radiating element to feed power to it, while a coaxial external conductor 13 of the coaxial cable 10 is connected to the ground.
COPYRIGHT: (C)2008,JPO&INPITAbstract translation: 解决方案：提供具有由金属板，电介质印刷电路板等构成的简单结构的紧凑型Z型宽带天线。解决方案：Z型宽带天线包括辐射元件1 由具有Z形横截面的导体板和由导体板组成的接地5，并且通过用于形成静电容量的间隙远离辐射元件的底面的端部布置。 同轴电缆10沿着地面布置，并且同轴电缆10的同轴中心导体12连接到辐射元件的底面4以向其供电，而同轴电缆10的同轴外部导体13是 连接到地面。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2006140578A
公开(公告)日：2006-06-01
申请号：JP2004326275
申请日：2004-11-10
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To provide an antenna for ensuring the electric field strength required for communication by strengthening a radiation electric field in a direction beneath the antenna.
SOLUTION: The antenna including: a plurality of radiation elements 7 arranged in a vertical direction; a support part 8 for supporting a plurality of the radiation elements 7; and a radome 2 for covering a plurality of the radiation elements 7 and the support part 8, is provided with one or more belt-like conductors 10 located on a front side or a rear side of a side face of the radome 2, and each of the belt-like conductors 10 is formed linearly and the length of each of the conductors 10 is selected to be about 1/2 wavelength with respect to a radio wave in use.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：提供一种用于通过加强天线下方的辐射电场来确保通信所需的电场强度的天线。 解决方案：天线包括：沿垂直方向布置的多个辐射元件7; 用于支撑多个辐射元件7的支撑部分8; 并且用于覆盖多个辐射元件7和支撑部8的天线罩2设置有位于天线罩2的侧面的前侧或后侧的一个或多个带状导体10，并且每个 带状导体10的直线形状，并且每个导体10的长度相对于使用的无线电波被选择为约1/2波长。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2003332836A
公开(公告)日：2003-11-21
申请号：JP2002134345
申请日：2002-05-09
Inventor： KURAMOTO AKIO , TANABE KOSUKE , OBARA TERUHIDE
IPC: H01Q19/13
Abstract: PROBLEM TO BE SOLVED: To adjust the radiation pattern of a radio wave from an antenna in accordance with the installation.
SOLUTION: A reflector 2 is engaged with long holes 7 respectively formed at a top plate 3 provided at an upper part of the reflector 2 opposite to a bottom plate 4 and the bottom plate 4 and with projections 21 formed at the upper parts and lower parts of the reflector 2 to be mounted at an optional position on the long holes 7 in an optional direction. At this time, the reflector 2 may be screwed at an optional position on the long holes 7.
COPYRIGHT: (C)2004,JPOAbstract translation: 要解决的问题：根据安装来调整来自天线的无线电波的辐射图。 解决方案：反射器2与分别形成在设置在反射器2的与底板4和底板4相对的上部的顶板3处的长孔7接合，并且形成在上部的突起21 和反射器2的下部，以可选方向安装在长孔7上的可选位置。 此时，反射器2可以拧在长孔7上的可选位置上。版权所有（C）2004，JPO
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公开(公告)号：JP2002135028A
公开(公告)日：2002-05-10
申请号：JP2000321536
申请日：2000-10-20
Applicant: NEC CORP
Inventor： KURAMOTO AKIO
Abstract: PROBLEM TO BE SOLVED: To transmit or receive linearly polarized waves whose polarization planes are perpendicular with each other. SOLUTION: When a high-frequency signal is supplied from an electrode 4 to an element 8 through a feeder line 6, a first electric field in parallel with the extension direction of the element 8 is radiated from the element 8. On the other hand, when the high-frequency signal is propagated through the feeder line 6, a magnetic current is excited in a slot 10, and hence a second electric field that is nearly vertical to the extension direction of a slot 200 and is nearly in parallel with a grounded conductor 3 is radiated. More specifically, an electromagnetic wave including two types of linearly polarized components whose polarization planes are mutually perpendicular is radiated from a chip antenna 100. There, the two types of linearly polarized components that are mutually perpendicular can be received by the chip antenna 100.
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