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21. 发明授权

US06885261B2 Dielectric filter, antenna sharing device, and communication device having a voltage controlled reactance element for tuning the center frequency 失效
标题翻译：介质滤波器，天线共享装置和具有用于调谐中心频率的电压控制电抗元件的通信装置
公开(公告)号：US06885261B2
公开(公告)日：2005-04-26
申请号：US09764046
申请日：2001-01-17
申请人： Masayuki Atokawa , Hirofumi Miyamoto , Hajime Suemasa , Kikuo Tsunoda , Yasuo Yamada
发明人： Masayuki Atokawa , Hirofumi Miyamoto , Hajime Suemasa , Kikuo Tsunoda , Yasuo Yamada
IPC分类号： H01P7/10 , H01P1/205 , H04B1/48 , H01P1/213
CPC分类号： H01P1/2056
摘要： An outer conductor, an input terminal electrode, an output terminal electrode, a voltage controllable terminal electrode, and two separated electrodes are formed on the outer face of a dielectric block. Furthermore, on the upper face of the dielectric block, PIN diodes which are voltage controllable reactance elements, and inductors for voltage-controlling the PIN diodes, and a coupling adjustment capacitor are mounted. Frequency shifting capacitors are formed by generation of electrostatic capacitances between the separated electrodes and the inner conductors of the resonance holes, respectively.
摘要翻译：在介质块的外表面上形成外导体，输入端电极，输出端电极，电压可控端电极和两个分开的电极。此外，在介质块的上表面上安装有作为电压可控电抗元件的PIN二极管，以及用于电压控制PIN二极管的电感器和耦合调整电容器。频移电容器分别通过在分离的电极和谐振孔的内部导体之间产生静电电容而形成。

22. 发明授权

US06697605B1 High-frequency circuit apparatus and communication apparatus 失效
标题翻译：高频电路装置及通信装置
公开(公告)号：US06697605B1
公开(公告)日：2004-02-24
申请号：US09591272
申请日：2000-06-09
申请人： Masayuki Atokawa , Toshihiro Yamamoto
发明人： Masayuki Atokawa , Toshihiro Yamamoto
IPC分类号： H04B146
CPC分类号： H04B1/0057 , H04B1/006 , H04B1/48
摘要： Provided is a high-frequency circuit apparatus and a communication apparatus whose consumption current is small and the inserting loss is small. One embodiment provides a high-frequency circuit apparatus constructed by an antenna duplexer of a frequency variable type; a first change-over switch which is electrically connected to an antenna terminal in the antenna duplexer; a second change-over switch which is electrically connected to a receiving terminal in the antenna duplexer; and a filter for reception which is electrically connected across the first and second change-over switches. As for the first and second change-over switches, a GaAs switch and a PIN diode switch, etc. are used. As for the filter for reception, a surface acoustic wave filter or monolithic ceramic LC filter, etc. is used.
摘要翻译：提供了一种高频电路装置和消耗电流小并且插入损耗小的通信装置。一个实施例提供一种由频率可变型的天线双工器构成的高频电路装置; 电连接到天线双工器中的天线端子的第一转换开关; 第二转换开关，其电连接到天线双工器中的接收端子; 以及用于接收的滤波器，其通过第一和第二转换开关电连接。对于第一和第二转换开关，使用GaAs开关和PIN二极管开关等。对于用于接收的滤波器，使用表面声波滤波器或单片陶瓷LC滤波器等。

23. 发明授权

US06522220B2 Frequency variable filter, antenna duplexer, and communication apparatus incorporating the same 有权
公开(公告)号：US06522220B2
公开(公告)日：2003-02-18
申请号：US09838815
申请日：2001-04-19
申请人： Yasuo Yamada , Kikuo Tsunoda , Masayuki Atokawa , Hirofumi Miyamoto , Hajime Suemasa
发明人： Yasuo Yamada , Kikuo Tsunoda , Masayuki Atokawa , Hirofumi Miyamoto , Hajime Suemasa
IPC分类号： H01P1213
CPC分类号： H01P1/2136 , H01P1/2056
摘要： A frequency variable filter in which both the frequency of an attenuation pole and the attenuation bandwidth can be varied. In the frequency variable filter, two serial resonance sections composed of resonators and resonance capacitors are electrically connected to each other via a capacitor. The respective resonator in each of the serial resonance sections is electrically connected in parallel with a corresponding serial circuit composed of a frequency shifting capacitor and a PIN diode. A coupling capacitor electrically connects the junctions defined respectively between the frequency shifting capacitor and the PIN diode in each of the serial circuits.

24. 发明授权

US06483399B1 Duplexer and communication apparatus with first and second filters, the second filter having plural switch selectable saw filters 失效
标题翻译：双工器和具有第一和第二滤波器的通信装置，第二滤波器具有多个开关可选择的锯式滤波器
公开(公告)号：US06483399B1
公开(公告)日：2002-11-19
申请号：US09667172
申请日：2000-09-21
申请人： Masayuki Atokawa
发明人： Masayuki Atokawa
IPC分类号： H03H972
CPC分类号： H03H7/46 , H01P1/213 , H03H7/0123 , H03H7/0161 , H03H9/0576 , H03H9/72 , H03H9/725 , H03H2250/00
摘要： A duplexer and a communication apparatus incorporating the same which are suitable for use in communication systems with wide frequency bands and narrow separations, and which can be miniaturized while having satisfactory characteristics. The duplexer has a transmission filter constituted of a variable frequency filter in which PIN diodes are connected to dielectric resonators and a reception filter constituted of two surface acoustic wave filters and a switching circuit. In the transmission filter, one of the higher and lower sides of a transmission frequency band can be selected according to a voltage applied to a first voltage control terminal. In addition, in the reception filter, one of the two surface acoustic wave filters can be selected according to a voltage applied to a second voltage control terminal.
摘要翻译：一种双工器和包括该双工器的通信设备，其适用于具有宽频带和窄间隔的通信系统，并且可以在具有令人满意的特性的情况下小型化。双工器具有由PIN二极管连接到介质谐振器的可变频率滤波器和由两个表面声波滤波器和开关电路构成的接收滤波器构成的发送滤波器。在发送滤波器中，可以根据施加到第一电压控制端子的电压来选择发送频带的上侧和下侧之一。此外，在接收滤波器中，可以根据施加到第二电压控制端子的电压来选择两个声表面波滤波器之一。

25. 发明授权

US06308051B1 Antenna duplexer 失效
标题翻译：天线双工器
公开(公告)号：US06308051B1
公开(公告)日：2001-10-23
申请号：US09166197
申请日：1998-10-05
申请人： Masayuki Atokawa
发明人： Masayuki Atokawa
IPC分类号： H04B146
CPC分类号： H01P1/213
摘要： A transmitting circuit 25 is provided with a frequency variable bandwidth blocking filter circuit 27 and a phase shifter 29. A series circuit of variable bandwidth capacitors C3, C4 and PIN diodes D1, D2 is electrically connected in parallel to resonators 2,3 of the frequency variable bandwidth blocking filter circuit 27. The transmitting circuit 25 can have two different passing bands by grounding or opening the variable bandwidth capacitors C3,C4 by controlling the voltage to be applied to an electric control terminal CONT1. A receiving circuit 26 is provided with a frequency variable trap circuit 28, the phase shifter 29, and a surface acoustic wave filter circuit 30. The surface acoustic wave filter circuit 30 comprises two surface acoustic wave filter elements 11,12 whose passing band is different from each other.
摘要翻译：发送电路25设置有可变频带阻断滤波器电路27和移相器29.可变带宽电容器C3，C4和PIN二极管D1，D2的串联电路并联电连接到频率的谐振器2,3 可变带宽阻塞滤波器电路27.发送电路25可以通过控制施加到电气控制终端CONT1的电压来接地或打开可变带宽电容器C3，C4来具有两个不同的通过频带。接收电路26设置有频率可变陷波电路28，移相器29和表面声波滤波器电路30.声表面波滤波器电路30包括通过频带不同的两个声表面波滤波器元件11,12 从彼此。

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