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    • 1. 发明授权
    • Radio communications apparatus
    • 无线通信装置
    • US06973136B2
    • 2005-12-06
    • US09893854
    • 2001-06-28
    • Noriharu KojimaHideki WatanabeYasunobu AkaokaJunichi Takada
    • Noriharu KojimaHideki WatanabeYasunobu AkaokaJunichi Takada
    • H04L27/20H03C3/09H03D7/16H03L7/16H04B1/04H04B1/40H04L27/36H04L23/02H04L5/12
    • H03C3/0966H03D7/165H03L7/16H03L2207/12H04B1/403
    • A phase comparator (106) compares a phase of the output signal of the quadrature modulator (104) with the phase of the signal obtained by frequency-converting the output signal of a first VCO (101) via the second VCO (102) and the first mixer (108). A PLL modulator includes a low-pass filter (107) filters a component below a predetermined frequency of the output signal of the phase comparator (106) and supplying the resulting signal to the frequency control terminal of the first VCO (101). The output signal (TS1) of the first VCO (101) is a modulated signal conforming to a modulation system having a constant envelope waveform, while the output signal of the quadrature modulator (104) is input to the first band-pass filter (110) and the output signal (TS2) of the first band-pass filter is a modulated signal conforming to a modulation system accompanied by an amplitude component as information.
    • 相位比较器(106)将正交调制器(104)的输出信号的相位与通过经由第二VCO(102)对第一VCO(101)的输出信号进行频率转换而获得的信号的相位进行比较, 第一混合器(108)。 PLL调制器包括低通滤波器(107)对低于相位比较器(106)的输出信号的预定频率的分量进行滤波,并将得到的信号提供给第一VCO(101)的频率控制端。 第一VCO(101)的输出信号(TS 1)是符合具有恒定包络波形的调制系统的调制信号,而正交调制器(104)的输出信号被输入到第一带通滤波器 110),并且第一带通滤波器的输出信号(TS 2)是符合作为信息的伴随振幅分量的调制系统的调制信号。
    • 2. 发明授权
    • Antenna device with a first and second antenna
    • 具有第一和第二天线的天线装置
    • US07142824B2
    • 2006-11-28
    • US10530663
    • 2003-08-28
    • Noriharu KojimaHideki Watanabe
    • Noriharu KojimaHideki Watanabe
    • H04B1/44
    • H04B7/12H01Q1/241H01Q21/28H04B7/04
    • An antenna device corresponds to a plurality of radio communications systems and frequency bands, can simultaneously carry out a reception and a transmission of different radio communications systems, and is capable of using antenna diversity by a simple construction. An antenna device comprises a first antenna matching with first, second, and third frequency bands, a second antenna matching with the third frequency band, a diplexer and the like. For signals of the first frequency band, a high-frequency switch circuit connects a transmitter or a receiver to the diplexer by switching. For signals of the second frequency band, an additional high-frequency switch connects a receiver or a transmitter to the diplexer by switching. For signals of the third frequency band, the additional high-frequency switch circuit and a further additional high-frequency switch circuit connect the second antenna or diplexer to a transmitter/receiver by switching.
    • 天线装置对应于多个无线电通信系统和频带,可以同时执行不同的无线电通信系统的接收和发送,并且能够通过简单的结构来使用天线分集。 天线装置包括与第一,第二和第三频带匹配的第一天线,与第三频带匹配的第二天线,双工器等。 对于第一频带的信号,高频开关电路通过切换将发送器或接收器连接到双工器。 对于第二频带的信号,附加的高频开关通过切换将接收器或发射器连接到双工器。 对于第三频带的信号,附加的高频开关电路和另外的另外的高频开关电路通过切换将第二天线或双工器连接到发射机/接收机。
    • 3. 发明申请
    • Antenna device
    • 天线设备
    • US20050277387A1
    • 2005-12-15
    • US10530663
    • 2003-08-28
    • Noriharu KojimaHideki Watanabe
    • Noriharu KojimaHideki Watanabe
    • H01Q21/30H01Q1/24H01Q21/28H04B7/04H04B7/12H04B1/44H04M1/00
    • H04B7/12H01Q1/241H01Q21/28H04B7/04
    • An object of the present invention is to provide an antenna device which corresponds to a plurality of radio communications systems and frequency bands, which can simultaneously carry out a reception and a transmission of different radio communications systems, and which is capable of using antenna diversity by a simple construction. An antenna device comprises a first antenna (1) matching with first, second, and third frequency bands, a second antenna (2) matching with the third frequency band, a diplexer (3) and the like. For signals of the first frequency band, a high-frequency switch circuit (4) connects a transmitter (8) or a receiver (7) to the diplexer (3) by switching. For signals of the second frequency band, the high-frequency switch (5) connects a receiver (9) or a transmitter (10) to the diplexer (3) by switching. For signals of the third frequency band, the high-frequency switch circuit (5) and a high-frequency switch circuit (6) connect the second antenna (2) or diplexer (3) to a transmitter/receiver (11) by switching.
    • 本发明的目的是提供一种对应于多个无线电通信系统和频带的天线装置,其可以同时执行不同的无线电通信系统的接收和传输,并且能够使用天线分集 一个简单的施工。 天线装置包括与第一,第二和第三频带匹配的第一天线(1),与第三频带匹配的第二天线(2),双工器(3)等。 对于第一频带的信号,高频开关电路(4)通过切换将发送器(8)或接收器(7)连接到双工器(3)。 对于第二频带的信号,高频开关(5)通过切换将接收器(9)或发送器(10)连接到双工器(3)。 对于第三频带的信号,高频开关电路(5)和高频开关电路(6)通过切换将第二天线(2)或双工器(3)连接到发射机/接收机(11)。