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    • 1. 发明申请
    • ANTENNA DEVICE AND PORTABLE TERMINAL DEVICE
    • 天线设备和便携式终端设备
    • US20100109968A1
    • 2010-05-06
    • US12593408
    • 2007-03-29
    • Hidenori SuzukiKazutaka Iwase
    • Hidenori SuzukiKazutaka Iwase
    • H01Q3/24H01Q1/36
    • H01Q1/2216H01Q1/243H01Q7/00H01Q9/27
    • An antenna device and a portable terminal device are provided that can be used for radio communication systems having different frequency bands by sharing a single antenna. An antenna device has a spiral antenna 21 formed in a spiral shape; a first feeding part 241 connected to and feeding an electric power to a first radio system operating in a first frequency band; and a second feeding part 242 connected to and feeding an electric power to a second radio system operating in a second frequency band. The antenna device includes: a feeding part switch unit 24 that switches a connecting state of the first feeding part 241 or the second feeding part 242 and an outermost periphery or an inner periphery inside the outermost periphery of the spiral antenna 21, and a grounding switch unit 23 that switches a prescribed point of the outermost periphery of the spiral antenna 21 to either an opening or a grounding. The spiral antenna 21 is formed in such a way that the width of a conductor forming the spiral antenna is different in its dimension between the outermost periphery and the inner periphery inside the outermost periphery.
    • 提供了可以通过共享单个天线而用于具有不同频带的无线电通信系统的天线装置和便携式终端装置。 天线装置具有形成为螺旋状的螺旋形天线21, 与在第一频带中工作的第一无线电系统连接并馈送电力的第一馈电部分241; 以及与在第二频带中工作的第二无线电系统连接并馈送电力的第二馈电部分242。 天线装置包括:馈送部开关单元24,其切换第一馈送部241或第二馈送部242的连接状态以及螺旋形天线21的最外周内的最外周或内周;接地开关 单元23将螺旋天线21的最外周的规定点切换为开口或接地。 螺旋形天线21形成为使形成螺旋状天线的导体的宽度在最外周与最外周内的内周之间的尺寸不同。
    • 2. 发明授权
    • Radio direction and position finding apparatus
    • 无线电方向和位置查找装置
    • US06759982B2
    • 2004-07-06
    • US10454257
    • 2003-06-03
    • Hayato AkazawaEiji KobayashiTsugihiro KuriharaKazuaki KimuraKazutaka Iwase
    • Hayato AkazawaEiji KobayashiTsugihiro KuriharaKazuaki KimuraKazutaka Iwase
    • G01S502
    • H01Q25/02G01S3/36G01S5/04
    • A detection apparatus is provided to detect the direction of arrival and the position of an emission source of radio wave with high accuracy. The apparatus comprises; a first and a second directional antenna 1 and 10 which rotates with a desired angle of elevation; a first and a second phase integral means 2 and 11 for outputting an integration of the output from an antenna; a first and second phase differential means 3 and 12 for outputting an difference of the outputs from an antenna; a first and a second frequency dividing means 4 and 13 for dividing frequency of the integral component of the output from an antenna; a first and a second differential gain control means 5 and 14 for controlling a gain of the differential component of the output from an antenna; a first and a third receiving means 6 and 15 for receiving an output of the frequency dividing means; a second and a fourth receiving means 8 and 17 for receiving an output of the differential gain control means; a first and a second subtraction means 7 and 16 for subtracting one detection signal output from the other detection signal output of each of receiving means 6 and 8 and receiving means 15 and 17; a first and a second calculation means 9 and 18 for determining a direction of arrival of radio wave based on an output from the subtraction means; and a position determining calculation means 19 for determining the position of the emission source of the radio wave based on an output from the calculation means.
    • 提供一种检测装置,以高精度检测无线电波的到达方向和位置。 该装置包括: 以期望的仰角旋转的第一和第二定向天线1和10; 用于输出来自天线的输出的积分的第一和第二相位积分装置2和11; 用于输出来自天线的输出的差的第一和第二相位差分装置3和12; 第一和第二分频装置4和13,用于分频来自天线的输出的积分分量的频率; 用于控制来自天线的输出的差分分量的增益的第一和第二差分增益控制装置5和14; 第一和第三接收装置6和15,用于接收分频装置的输出; 第二和第四接收装置8和17,用于接收差分增益控制装置的输出; 第一和第二减法装置7和16,用于减去从接收装置6和8以及接收装置15和17中的每一个的另一个检测信号输出输出的一个检测信号; 用于基于来自减法装置的输出确定无线电波的到达方向的第一和第二计算装置9和18; 以及基于来自计算装置的输出来确定无线电波的发射源的位置的位置确定计算装置19。