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    • 3. 发明授权
    • Switch circuit and composite high-frequency part
    • 开关电路和复合高频部分
    • US07167687B2
    • 2007-01-23
    • US10502982
    • 2003-01-31
    • Shigeru KemmochiMitsuhiro WatanabeKeisuke FukamachiHiroyuki Tai
    • Shigeru KemmochiMitsuhiro WatanabeKeisuke FukamachiHiroyuki Tai
    • H04B1/44
    • H04B1/005H01P1/15H04B1/406H04B1/44H04B1/48
    • A switch circuit for selectively switching connection of an antenna side circuit with a reception circuit and a transmission circuit of two communication systems one of which has a reception frequency band partially overlapped with a transmission frequency of the other. The switch circuit includes (a) a first switch unit for switching connection of the antenna side circuit with the transmission circuit side of the first and tie second communication systems and the reception circuit side of the first and the second communication system and (b) a second switch unit connected between the first switch unit and the reception circuit of the first and the second communication system for switching connection of the antenna side circuit with the reception circuit of the first and the second communication system. (c) The transmission circuit side of the first and the second communication system of the first switch unit is connected to a transmission circuit shared by the first and the second communication system. (d) When the transmission circuit of the first and the second communication system is connected to the antenna side circuit, the second switch unit cuts off the connection between the reception circuit of the first communication system and the first switch unit.
    • 一种用于选择性地切换天线侧电路与接收电路的连接的开关电路和两个通信系统的发送电路,其中一个具有与另一个的发送频率部分重叠的接收频带。 开关电路包括:(a)第一开关单元,用于切换天线侧电路与第一和第二通信系统的发送电路侧和第一和第二通信系统的接收电路侧的连接,以及(b) 连接在第一和第二通信系统的第一开关单元和接收电路之间的第二开关单元,用于切换天线侧电路与第一和第二通信系统的接收电路的连接。 (c)第一开关单元的第一和第二通信系统的发送电路侧连接到由第一通信系统和第二通信系统共享的发送电路。 (d)当第一和第二通信系统的发送电路连接到天线侧电路时,第二开关单元切断第一通信系统的接收电路和第一开关单元之间的连接。
    • 4. 发明申请
    • Switch circuit and high-frequency composite part
    • 开关电路和高频复合部件
    • US20070105506A1
    • 2007-05-10
    • US11592218
    • 2006-11-03
    • Shigeru KemmochiMitsuhiro WatanabeKeisuke FukamachiHiroyuki Tai
    • Shigeru KemmochiMitsuhiro WatanabeKeisuke FukamachiHiroyuki Tai
    • H04B1/44
    • H04B1/005H01P1/15H04B1/406H04B1/44H04B1/48
    • A switch circuit for selectively switching connection of an antenna side circuit with a reception circuit and a transmission circuit of two communication systems one of which has a reception frequency band partially overlapped with a transmission frequency of the other. The switch circuit includes (a) a first switch unit for switching connection to the antenna side circuit with the transmission circuit side of the first and the second communication systems and the reception circuit side of the first and the second communication system and (b) a second switch unit connected between the first switch unit and the reception circuit of the first end and the second communication system for switching connection of the antenna side circuit with the reception circuit of the first and the second communication system. (c) The transmission circuit side of the first and the second communication system of the first switch unit is connected to a transmission circuit shared by the first and the second communication system. (d) When the transmission circuit of the first and the second communication system is connected to the antenna side circuit, the second switch unit cuts off the connection between the reception circuit of the first communication system and the first switch unit.
    • 一种用于选择性地切换天线侧电路与接收电路的连接的开关电路和两个通信系统的发送电路,其中一个具有与另一个的发送频率部分重叠的接收频带。 开关电路包括:(a)第一开关单元,用于利用第一和第二通信系统的发送电路侧和第一和第二通信系统的接收电路侧切换与天线侧电路的连接,以及(b) 连接在第一开关单元和第一端的接收电路之间的第二开关单元和用于切换天线侧电路与第一和第二通信系统的接收电路的连接的第二通信系统。 (c)第一开关单元的第一和第二通信系统的发送电路侧连接到由第一通信系统和第二通信系统共享的发送电路。 (d)当第一和第二通信系统的发送电路连接到天线侧电路时,第二开关单元切断第一通信系统的接收电路和第一开关单元之间的连接。
    • 5. 发明申请
    • Switch circuit and composite high-frequency part
    • 开关电路和复合高频部分
    • US20050048927A1
    • 2005-03-03
    • US10502982
    • 2003-01-31
    • Shigeru KemmochiMitsuhiro WatanabeKeisuke FukamachiHiroyuki Tai
    • Shigeru KemmochiMitsuhiro WatanabeKeisuke FukamachiHiroyuki Tai
    • H01P1/15H04B1/40H04B1/44H04B1/48
    • H04B1/005H01P1/15H04B1/406H04B1/44H04B1/48
    • A switch circuit for selectively switching connection of an antenna side circuit with a reception circuit and a transmission circuit of two communication systems one of which has a reception frequency band partially overlapped with a transmission frequency of the other. The switch circuit includes (a) a first switch unit for switching connection of the antenna side circuit with the transmission circuit side of the first and tie second communication systems and the reception circuit side of the first and the second communication system and (b) a second switch unit connected between the first switch unit and the reception circuit of the first and the second communication system for switching connection of the antenna side circuit with the reception circuit of the first and the second communication system. (c) The transmission circuit side of the first and the second communication system of the first switch unit is connected to a transmission circuit shared by the first and the second communication system. (d) When the transmission circuit of the first and the second communication system is connected to the antenna side circuit, the second switch unit cuts off the connection between the reception circuit of the first communication system and the first switch unit.
    • 一种用于选择性地切换天线侧电路与接收电路的连接的开关电路和两个通信系统的发送电路,其中一个具有与另一个的发送频率部分重叠的接收频带。 开关电路包括:(a)第一开关单元,用于切换天线侧电路与第一和第二通信系统的发送电路侧和第一和第二通信系统的接收电路侧的连接,以及(b) 连接在第一和第二通信系统的第一开关单元和接收电路之间的第二开关单元,用于切换天线侧电路与第一和第二通信系统的接收电路的连接。 (c)第一开关单元的第一和第二通信系统的发送电路侧连接到由第一通信系统和第二通信系统共享的发送电路。 (d)当第一和第二通信系统的发送电路连接到天线侧电路时,第二开关单元切断第一通信系统的接收电路和第一开关单元之间的连接。
    • 10. 发明授权
    • Unbalanced-balanced multiband filter module
    • 不平衡平衡多频带滤波器模块
    • US07242268B2
    • 2007-07-10
    • US10532239
    • 2003-10-27
    • Kazuhiro HagiwaraShigeru KemmochiKeisuke FukamachiMitsuhiro WatanabeTsuyoshi TaketaYoshiyuki Murakami
    • Kazuhiro HagiwaraShigeru KemmochiKeisuke FukamachiMitsuhiro WatanabeTsuyoshi TaketaYoshiyuki Murakami
    • H03H9/70H03H9/72H01P1/213H04B1/44
    • H04B1/0057H01L2924/15313H01L2924/19105H01P1/15H01P1/20H01P1/213H01P5/10H03H7/0123H03H7/42H03H7/463H03H9/0571H03H9/0576H03H11/32H03H11/34H04B1/006H04B1/406
    • An unbalanced-balanced multiband filter module comprising three high-frequency switches each comprising a switching element, and two unbalanced-balanced bandpass filters having different transmitting frequency bands, a first high-frequency switch being connected to an unbalanced port of the module, an unbalanced port of the first unbalanced-balanced bandpass filter, and an unbalanced port of the second unbalanced-balanced bandpass filter; a second high-frequency switch being connected to a first balanced port of the module, a first balanced port of the first unbalanced-balanced bandpass filter, and a first balanced port of the second unbalanced-balanced bandpass filter; a third high-frequency switch being connected to a second balanced port of the module, a second balanced port of the first unbalanced-balanced bandpass filter, and a second balanced port of the second unbalanced-balanced bandpass filter; and the first to third high-frequency switches being switched depending on a passing high-frequency signal, whereby a high-frequency signal input into an unbalanced port of the module is output from the first and second balanced ports, or a high-frequency signal input into the first and second balanced ports is output from an unbalanced port of the module.
    • 一种不平衡平衡多频带滤波器模块,包括三个高频开关,每个高频开关各自包括开关元件,以及两个具有不同发射频带的不平衡平衡带通滤波器,第一高频开关连接到模块的不平衡端口,不平衡 第一不平衡平衡带通滤波器的端口和第二不平衡平衡带通滤波器的不平衡端口; 连接到模块的第一平衡端口的第二高频开关,第一不平衡平衡带通滤波器的第一平衡端口和第二不平衡平衡带通滤波器的第一平衡端口; 连接到模块的第二平衡端口的第三高频开关,第一不平衡平衡带通滤波器的第二平衡端口和第二不平衡平衡带通滤波器的第二平衡端口; 并且根据通过的高频信号切换第一至第三高频开关,由此从第一和第二平衡端口输出输入到模块的不平衡端口的高频信号,或者高频信号 从模块的不平衡端口输出到第一和第二平衡端口的输入。