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公开(公告)号：US08502619B2
公开(公告)日：2013-08-06
申请号：US13662589
申请日：2012-10-29
Applicant: Murata Manufacturing Co., Ltd
Inventor： Hidemori Akagi
IPC: H01P1/36
CPC classification number: H03F3/60 , G01R27/02 , G01R31/27 , H01P1/387 , H03F2200/111 , H03F2200/165
Abstract: A circuit module and a measurement method enable accurate measurement of isolation characteristics of an isolator. The circuit module includes a processing circuit including SAW filters and a power amplifier and performs certain processing on an input signal. An isolator includes an input port, an output port and a ground port and outputs an input signal, which is input thereto via the input port and on which the processing circuit has performed the certain processing, as an output signal via the output port. A directional coupler distributes a signal transmitted between the processing circuit and the isolator. A measurement instrument inputs a test signal from the output port and measures a detection signal output from the directional coupler.
Abstract translation: 电路模块和测量方法能够精确测量隔离器的隔离特性。 电路模块包括具有SAW滤波器和功率放大器的处理电路，并对输入信号执行某些处理。 隔离器包括输入端口，输出端口和接地端口，并且经由输入端口输出经输入端口输入并且处理电路已经执行该特定处理的输入信号作为输出端口的输出信号。 定向耦合器分配在处理电路和隔离器之间传输的信号。 测量仪器从输出端口输入测试信号，并测量从定向耦合器输出的检测信号。
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公开(公告)号：US12160226B2
公开(公告)日：2024-12-03
申请号：US17822152
申请日：2022-08-25
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Hiroshi Matsubara , Hidemori Akagi
Abstract: A first filter is a hybrid filter including an acoustic wave filter, a plurality of first inductors, and a plurality of first capacitors. A high frequency module further includes a metal electrode layer covering at least part of a resin layer and at least part of an outer peripheral surface of a mounting substrate. Among a plurality of inductors including the plurality of first inductors of the first filter and a plurality of second inductors of a second filter, at least one inductor (the second inductor) is a circuit element including a conductor pattern portion formed in the mounting substrate. The shortest distance between the outer peripheral surface of the mounting substrate and a signal terminal (a third signal terminal) connected to the circuit element is longer than the shortest distance between the outer peripheral surface of the mounting substrate and the circuit element.
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公开(公告)号：US11611367B2
公开(公告)日：2023-03-21
申请号：US17313002
申请日：2021-05-06
Applicant: Murata Manufacturing Co., Ltd.
Inventor： Daisuke Miyazaki , Hidemori Akagi
Abstract: A radio-frequency module includes a mount board, an antenna terminal and a ground terminal, a low-noise amplifier, a first inductor, and a second inductor. The mount board has a first principal surface and a second principal surface on opposite sides of the mount board from one another. The low-noise amplifier includes a transistor configured to amplify a signal. The first inductor is disposed on one of the first principal surface and the second principal surface of the mount board. The first inductor is connected to the antenna terminal. The second inductor is disposed on the other of the first principal surface and the second principal surface of the mount board. The second inductor is connected between the transistor and the ground terminal.
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