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1.发明授权Directivity control antenna apparatus for shaping the radiation pattern of antenna of base station in mobile communication system in accordance with estimated directions or positions of mobile stations with which communication is in progress 失效指向性控制天线装置，用于根据与进行通信的移动台的估计方向或位置对移动通信系统中的基站的天线的辐射方向图进行整形公开(公告)号：US06188913B1
公开(公告)日：2001-02-13
申请号：US08917596
申请日：1997-08-26
IPC分类号： H04B138
摘要： In a mobile communication system, each base station is provided with an array antenna, a section for estimating the respective directions of one or more mobile stations with which the base station is in communication, based on estimated incoming directions of radio waves received from these mobile stations, and sections for operating on respective signals of the antenna elements constituting the array antenna such as to shape the radiation pattern of the antenna to form peaks of directivity which are oriented in the estimated directions of these mobile stations, and can include a capability for shaping these peaks in accordance with estimated positions of these mobile stations, thereby minimizing interference between transmissions from that base station and communication being executed between other adjacent stations of the system, and minimizing the number of different transmission frequencies required in the overall system.
摘要翻译： 在移动通信系统中，每个基站设置有阵列天线，用于基于从这些移动台接收到的无线电波的估计输入方向来估计基站与之通信的一个或多个移动台的各个方向的部分 站和用于对构成阵列天线的天线元件的各个信号进行操作的部分，以便形成天线的辐射图，以形成朝向这些移动站的估计方向的方向性的峰值，并且可以包括 根据这些移动站的估计位置对这些峰值进行整形，从而最小化来自该基站的传输之间的干扰以及在该系统的其它相邻站之间正在执行的通信，以及最小化整个系统中所需的不同传输频率的数量。
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公开(公告)号：US06407718B2
公开(公告)日：2002-06-18
申请号：US09794339
申请日：2001-02-28
申请人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q138
CPC分类号： H01Q9/0485
摘要： A hemispherical dielectric resonator is arranged on a conductive substrate with a flat surface of the resonator in contact with the conductive substrate and fixed by a pair of fixing blocks. The dielectric resonator is fed with a signal feeder at a position at one side of the resonator such that intensity of the electric field is higher at that position. The fixing blocks contact a portion of the dielectric resonator where the intensity of the electric field is of a local minimum.
摘要翻译： 半导体介质谐振器布置在导电衬底上，谐振器的平坦表面与导电衬底接触并由一对固定块固定。 介质谐振器在谐振器一侧的位置处馈送有信号馈送器，使得该位置的电场强度较高。 固定块与介质谐振器的一部分接触，其中电场的强度为局部最小值。
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公开(公告)号：US06531991B2
公开(公告)日：2003-03-11
申请号：US09793044
申请日：2001-02-27
申请人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q140
CPC分类号： H01Q9/0485
摘要： A hemispherical dielectric resonator is arranged on a metal substrate to make a flat surface of the hemispherical dielectric resonator contact with the metal substrate, and a dielectric wave-guiding channel is connected with a curved side surface of the hemispherical dielectric resonator. Therefore, a dielectric resonance antenna in which the hemispherical dielectric resonator and the dielectric wave-guiding channel are placed on the same metal substrate is obtained. A signal transmitting through the dielectric wave-guiding channel is fed in the hemispherical dielectric resonator, the hemispherical dielectric resonator is resonated, and an electromagnetic wave is radiated. Therefore, the dielectric resonance antenna functions as a wave radiation device.
摘要翻译： 半导体介质谐振器布置在金属基板上，以使半球形介质谐振器的平坦表面与金属基板接触，并且介电波导通道与半球形介质谐振器的弯曲侧表面连接。 因此，获得了将半球形介质谐振器和介质波导路放置在同一金属基板上的介质谐振天线。 通过介质波导通道传输的信号被馈送到半球形介质谐振器中，半球形介质谐振器谐振，并且电磁波被辐射。 因此，介质谐振天线用作波浪辐射装置。
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公开(公告)号：US06198450B1
公开(公告)日：2001-03-06
申请号：US09584789
申请日：2000-06-01
申请人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
发明人： Naoki Adachi , Takashi Fukagawa , Suguru Fujita , Kenichi Maeda , Kazuaki Takahashi , Makoto Hasegawa , Morikazu Sagawa , Mitsuo Makimoto
IPC分类号： H01Q138
CPC分类号： H01Q9/0485
摘要： A hemispherical dielectric resonator is arranged on a metal substrate to make a flat surface of the hemispherical dielectric resonator contact with the metal substrate, and a dielectric wave-guiding channel is connected with a curved side surface of the hemispherical dielectric resonator. Therefore, a dielectric resonance antenna in which the hemispherical dielectric resonator and the dielectric wave-guiding channel are placed on the same metal substrate is obtained. A signal transmitting through the dielectric wave-guiding channel is fed in the hemispherical dielectric resonator, the hemispherical dielectric resonator is resonated, and an electromagnetic wave is radiated. Therefore, the dielectric resonance antenna functions as a wave radiation device.
摘要翻译： 半导体介质谐振器布置在金属基板上，以使半球形介质谐振器的平坦表面与金属基板接触，并且介电波导通道与半球形介质谐振器的弯曲侧表面连接。 因此，获得了将半球形介质谐振器和介质波导路放置在同一金属基板上的介质谐振天线。 通过介质波导通道传输的信号被馈送到半球形介质谐振器中，半球形介质谐振器谐振，并且电磁波被辐射。 因此，介质谐振天线用作波浪辐射装置。
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公开(公告)号：US07031719B2
公开(公告)日：2006-04-18
申请号：US09920984
申请日：2001-08-02
IPC分类号： H04Q7/20
摘要： A method of calculating coefficients determining excitation amplitudes and phases for obtaining a desired antenna pattern of a circular array antenna comprising a plurality of antenna elements disposed circularly. Coefficients for a linear array antenna having the same number of antenna elements as the circular array antenna are determined by a Fourier series expansion in integral limits calculated from a beam direction and a beam width that are estimated from incoming radio waves and then are transformed into the coefficients for the circular array antenna. With this method, the beam direction and the beam width of the antenna pattern of the circular array antenna can be set at will. Consequently, this method enables adaptive control of sectored beams of sectored antennas at a base station or the like used for a mobile communication system, thus enhancing efficiency of the use of the antennas.
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公开(公告)号：US06529745B1
公开(公告)日：2003-03-04
申请号：US09413367
申请日：1999-10-06
IPC分类号： G01S328
摘要： A mobile station transmitted signal received at array antenna 11 is converted into an intermediate frequency signal in frequency conversion section 12, and converted into a digital signal in analog-digital conversion section 13. Arrival direction estimating section 15 estimates the number of mobile stations and directions thereof by processing the digital signal. Arrival direction tracking section 16 estimates a direction of a mobile station by sequential processing using an estimated result in arrival direction estimating section 15. Beam forming means 17 forms an antenna radiation beam to a direction of the estimated result in arrival direction tracking section 16.
摘要翻译： 在阵列天线11处接收的移动台发送信号在频率转换部分12中被转换成中频信号，并在模拟数字转换部分13中转换为数字信号。到达方向估计部分15估计移动台的数量和方向 通过处理数字信号。 到达方向跟踪部分16通过使用到达方向估计部分15中的估计结果的顺序处理来估计移动台的方向。波束形成装置17对到达方向跟踪部分16的估计结果的方向形成天线辐射束。
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7.发明授权Direction estimating apparatus, directivity controlling antenna apparatus, and direction estimating method 有权方向估计装置，方向性控制天线装置和方向估计方法公开(公告)号：US06333713B1
公开(公告)日：2001-12-25
申请号：US09639996
申请日：2000-08-17
IPC分类号： G01S352
CPC分类号： G01S3/74 , H01Q3/26 , H01Q3/2605
摘要： Array elements 111-1 to 111-n of array antenna 101 are arranged at respective different heights from a ground so as not to overlap to each other in a vertical direction. Received frequency conversion section 102 converts a radio frequency signal received at each of the array elements 111-1 to 111-n of array antenna 101 into an intermediate frequency signal or baseband signal. A/D conversion section 103 converts an analog signal output from received frequency conversion section 102 into a digital signal using a proper sampling frequency. Direction estimating section 105 estimates directions of an arrival radio signal in a horizontal plane and vertical plane using received digital signals obtained in A/D conversion section 103. It is thereby possible to suppress increases in the number of array elements and computation amount, and to improve estimation accuracy in the vertical direction and resolution at the time a plurality of signals arrive.
摘要翻译： 阵列天线101的阵列元件111-1至111-n被布置在与地面不同的高度处，以便在垂直方向上彼此不重叠。 接收频率转换部分102将在阵列天线101的每个阵列元件111-1至111-n处接收的射频信号转换为中频信号或基带信号。 A / D转换部分103使用适当的采样频率将从接收频率转换部分102输出的模拟信号转换成数字信号。 方向估计部105使用在A / D转换部103中获得的接收数字信号来估计水平面和垂直面中的到达无线信号的方向。由此，可以抑制数组元素的数量的增加和计算量， 提高多个信号到达时的垂直方向的估计精度和分辨率。
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8.发明授权Direction of arrival estimation apparatus and variable directional signal receiving and transmitting apparatus using the same 有权到达方向估计装置和使用该方向的可变方向信号接收和发送装置公开(公告)号：US06351238B1
公开(公告)日：2002-02-26
申请号：US09510997
申请日：2000-02-22
IPC分类号： G01S504
CPC分类号： G01S3/74
摘要： A direction of arrival (DOA) estimation apparatus of the present invention comprises a plurality of A/D converters that converts a plurality of complex base band signal obtained from the receiving signals of a plurality of antenna elements to respective complex digital signals, a plurality of low pass filters that outputs complex low pass signals with attenuated high frequency components of respective complex digital signals, a plurality of down samplers that outputs complex down sampled and multiplied signals by down sampling the complex low pass signals and multiplying by integral number of sampling intervals of respective A/D converters, and a data transfer section that stores respective complex down sampled signal thus obtained from respective antenna elements temporary and then transfers the data. A variable directional signal receiving and transmitting apparatus of the present invention performs an antenna directivity control based on the output data from the above data transfer section. With the composition of the present invention, an amount of data required for a DOA estimation process section is decreased and a composition of a data transfer section is simplified. With the composition of the present invention, a deterioration of an accuracy of direction estimation becomes minimum despite the simplification of the apparatus. Furthermore, a favorable receiving and transmitting quality is obtained by applying the DOA estimation apparatus for a transmitting and receiving apparatus.
摘要翻译： 本发明的到达方向（DOA）估计装置包括多个A / D转换器，其将从多个天线元件的接收信号获得的多个复基带信号转换为各个复数数字信号，多个 低通滤波器，其输出具有相应复数字信号的衰减高频分量的复合低通信号;多个下采样器，其通过对复数低通信号进行下采样并乘以整数倍的采样间隔来输出复数下采样和相乘信号 相应的A / D转换器和数据传送部件，其临时存储从各个天线元件获得的各个复数下采样信号，然后传送数据。 本发明的可变方向信号接收和发送装置基于来自上述数据传送部分的输出数据执行天线方向性控制。 利用本发明的组合，减少DOA估计处理部分所需的数据量，并且简化数据传送部分的组成。 利用本发明的组合，尽管设备的简化，方向估计的精度的劣化变得最小。 此外，通过应用用于发送和接收设备的DOA估计装置来获得良好的接收和发送质量。
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9.发明授权Adaptive array antenna system and mobile telecommunications system using the same 有权自适应阵列天线系统和移动电信系统使用相同公开(公告)号：US06781543B2
公开(公告)日：2004-08-24
申请号：US09985047
申请日：2001-11-01
IPC分类号： H04B700
CPC分类号： H04W84/02 , H01Q3/2605 , H04B7/00
摘要： The direction-of arrival estimation by means of a subspace-based algorithm such as MUSIC or ESPRIT is formed by using reduced-bandwidth signals as compared with communication signal waves. The narrower-bandwidth signals is obtained by each mobile telephone transmitting a modulated version of a lower-transmission rate test signal as well as a communication signal wave or by band-pass filtering the received communication signal waves in a base station. A direction-of-arrival estimation is formed by using a reduced number of signals for the direction-of arrival estimation. The number of direction-of-arrival estimating signals is reduced by discarding a part of the received signals, by multiplexing the received signals by the sub-array and forming a direction-of arrival estimation for each sub-array, or by using an additional array antenna having a reduced number of elements.
摘要翻译： 通过基于子空间的算法（诸如MUSIC或ESPRIT）的到达方向估计是通过使用与通信信号波相比的减少带宽信号形成的。 较窄的带宽信号由每个移动电话通过传输低速率测试信号的调制版本以及通信信号波或通过对基站中接收到的通信信号波进行带通滤波来获得。 到达方向估计是通过使用减少数量的到达方向估计信号来形成的。 到达方向估计信号的数量通过丢弃一部分接收信号而减少，通过将接收到的信号乘以子阵列并形成每个子阵列的到达方向估计，或者通过使用额外的 阵列天线具有减少的元件数量。
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公开(公告)号：US06349218B1
公开(公告)日：2002-02-19
申请号：US09234440
申请日：1999-01-21
IPC分类号： H04B138
CPC分类号： H04W84/02 , H01Q3/2605 , H04B7/00
摘要： The direction-of arrival estimation by means of a subspace-based algorithm such as MUSIC or ESPRIT is formed by using reduced-bandwidth signals as compared with communication signal waves. The narrower-bandwidth signals is obtained by each mobile telephone transmitting a modulated version of a lower-transmission rate test signal as well as a communication signal wave or by band-pass filtering the received communication signal waves in a base station. A direction-of-arrival estimation is formed by using a reduced number of signals for the direction-of arrival estimation. The number of direction-of-arrival estimating signals is reduced by discarding a part of the received signals, by multiplexing the received signals by the sub-array and forming a direction-of arrival estimation for each sub-array, or by using an additional array antenna having a reduced number of elements.
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