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公开(公告)号：US10158392B2
公开(公告)日：2018-12-18
申请号：US15090686
申请日：2016-04-05
发明人： Hidenori Obiya , Shinya Mizoguchi , Shinya Hitomi
摘要： A transmission-reception device includes an antenna duplexer, an antenna, and first and second transmission-reception circuits. A demultiplexer is connected between the first transmission-reception circuit and the antenna duplexer, and a multiplexer is connected between the second transmission-reception circuit and the antenna duplexer. A signal adjusting unit is connected between the demultiplexer and the multiplexer. The amplitude and phase of a third harmonic signal of a first transmission signal reflected by the antenna are detected. The signal adjusting unit adjusts the amplitude and phase of the third harmonic signal demultiplexed by the demultiplexer on the basis of the detection results, and outputs a cancel signal. The multiplexer synthesizes and hence cancels the third harmonic signal reflected by the antenna and the cancel signal with each other.
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公开(公告)号：US09979419B2
公开(公告)日：2018-05-22
申请号：US14993463
申请日：2016-01-12
发明人： Hisao Hayafuji , Hidenori Obiya , Shinya Mizoguchi
CPC分类号： H04B1/0057 , H04B1/0458 , H04B1/0483 , H04B1/18
摘要： A front-end circuit includes a multiplexer, a circulator, reception ports, and variable filters. A port in the multiplexer is connected to an antenna. A port in the circulator is connected to a port in the multiplexer. The reception ports are connected to a port in the circulator with the variable filters interposed therebetween. The multiplexer outputs a communication signal having a frequency in a low band to the port and outputs a communication signal having a frequency in a middle band to a port. Each of the low band and the middle band includes a plurality of frequency bands. The middle band is a range of frequencies higher than those in the low band and does not overlap the low band.
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公开(公告)号：US11223101B2
公开(公告)日：2022-01-11
申请号：US16816660
申请日：2020-03-12
发明人： Hideki Ueda , Shinya Mizoguchi , Tsubasa Nishida , Shinichiro Banba , Osamu Yamaguchi , Akihiro Muranaka , Koji Yasojima
摘要： A radiation conductor is constructed of a metal plate having a pair of main surfaces pointing in opposite directions. Each main surface of the pair of main surfaces includes a first surface region that includes at least part of a peripheral edge portion of the main surface. At least one main surface of the pair of main surfaces includes a second surface region that is a region other than the first surface region. A dielectric member holds the radiation conductor in such a manner that the first surface region of each main surface of the pair of main surfaces is sandwiched between portions of the dielectric member in a thickness direction of the radiation conductor. A housing supports and accommodates the dielectric member. The second surface region of the at least one main surface is exposed.
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公开(公告)号：US10454446B2
公开(公告)日：2019-10-22
申请号：US16049860
申请日：2018-07-31
发明人： Shinya Mizoguchi
IPC分类号： H03H7/38 , H03H9/00 , H03H9/25 , H03H9/64 , H03H7/01 , H03H9/10 , H03H9/70 , H03H9/72 , H04B1/525
摘要： A high-frequency module includes a propagation path that has a simple structure and improves filter characteristics by causing an inductor and a matching network to electromagnetic field couple with each other such that attenuation characteristics outside of a frequency band of a transmission signal are improved without increasing the size of the high-frequency module. In addition, unintended electromagnetic field coupling between a first filter and the inductor is significantly reduced or prevented by a shield electrode. Therefore, unintended propagation of a high-frequency signal is significantly reduced or prevented. Therefore, the attenuation characteristics outside of the frequency band of transmission signal input to the transmission terminal are improved more effectively.
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公开(公告)号：US09287918B2
公开(公告)日：2016-03-15
申请号：US14050406
申请日：2013-10-10
发明人： Hisao Hayafuji , Shinya Mizoguchi , Hidenori Obiya
CPC分类号： H04B1/40 , H04B1/0057
摘要： A high-frequency front-end circuit includes a first variable filter and a second variable filter. One end of each of the variable filters is connected to a common terminal. The other end of the first variable filter is connected to a transmission individual terminal and the other end of the second variable filter is connected to a reception individual terminal. At the time of transmission of a transmission signal, the impedance of the second variable filter is adjusted such that the impedance seen on the second variable filter side from a connection point between the variable filters is open. At the time of transmission of a reception signal, the impedance of the first variable filter is adjusted such that the impedance seen on the first variable filter side from a connection point between the variable filters is open.
摘要翻译： 高频前端电路包括第一可变滤波器和第二可变滤波器。 每个可变滤波器的一端连接到公共端子。 第一可变滤波器的另一端连接到传输单独端子，第二可变滤波器的另一端连接到接收单独端子。 在发送发送信号时，调整第二可变滤波器的阻抗，使得在可变滤波器之间的连接点处在第二可变滤波器侧看到的阻抗是断开的。 在发送接收信号时，调整第一可变滤波器的阻抗，使得在可变滤波器之间的连接点处的第一可变滤波器侧所看到的阻抗是断开的。
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公开(公告)号：US11223120B2
公开(公告)日：2022-01-11
申请号：US16749316
申请日：2020-01-22
发明人： Hideki Ueda , Tsubasa Nishida , Shinya Mizoguchi
摘要： An antenna module includes a dielectric substrate, a plurality of patch antennas, an integrated circuit, a connector, a heat-radiating member, and connection members. The dielectric substrate includes a first substrate part, a second substrate part, and a third substrate part. The second substrate part is bent toward a rear surface of the first substrate part with respect to the front surface of the first substrate part and the third substrate part is bent toward the rear surface of the first substrate part with respect to the front surface of the first substrate part.
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公开(公告)号：US10680579B2
公开(公告)日：2020-06-09
申请号：US16545243
申请日：2019-08-20
发明人： Masanori Kato , Shinya Mizoguchi , Yukiteru Sugaya
摘要： A transmission filter in a high frequency module includes serial arm resonators electrically connected in series to a serial arm electrically connecting a shared terminal and a transmission terminal, parallel arm resonators each electrically connected in series to each of parallel arms electrically connecting the serial arm and a ground, a first inductor electrically connected between the ground and a connection end electrically connecting at least the two parallel arm resonators of the parallel arm resonators, and a second inductor electrically connected between the ground and one parallel arm resonator different from the at least two parallel arm resonators of the parallel arm resonators. The second inductor is electromagnetic field coupled to at least one of an antenna side matching element, a transmission side matching element, and a portion of the serial arm in the transmission filter. The first and second inductors obstruct electromagnetic field coupling therebetween.
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公开(公告)号：US10439588B2
公开(公告)日：2019-10-08
申请号：US15794073
申请日：2017-10-26
发明人： Masanori Kato , Shinya Mizoguchi , Yukiteru Sugaya
摘要： A transmission filter in a high frequency module includes serial arm resonators electrically connected in series to a serial arm electrically connecting a shared terminal and a transmission terminal, parallel arm resonators each electrically connected in series to each of parallel arms electrically connecting the serial arm and a ground, a first inductor electrically connected between the ground and a connection end electrically connecting at least the two parallel arm resonators of the parallel arm resonators, and a second inductor electrically connected between the ground and one parallel arm resonator different from the at least two parallel arm resonators of the parallel arm resonators. The second inductor is electromagnetic field coupled to at least one of an antenna side matching element, a transmission side matching element, and a portion of the serial arm in the transmission filter. The first and second inductors obstruct electromagnetic field coupling therebetween.
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公开(公告)号：US09407315B2
公开(公告)日：2016-08-02
申请号：US14688448
申请日：2015-04-16
发明人： Hidenori Obiya , Shinya Mizoguchi , Shinya Hitomi
摘要： A transmission filter allows a signal in the frequency band of a transmission signal to pass through the transmission filter and blocks signals in other frequency bands. The transmission signal output from the transmission filter is supplied to an antenna via an antenna sharing device and transmitted to the outside. A reflected-signal detector senses the amplitude and the phase of a reflected signal from the antenna and outputs detection signals (DA and DP). A control circuit adjusts control signals (CA and CP) on the basis of the detection signals (DA and DP). A cancellation-signal-output circuit adjusts a cancellation signal in such a manner that the cancellation signal has a phase opposite to that of the reflected signal and an amplitude the same as that of the reflected signal by using the control signals (CA and CP). A multiplexer combines the cancellation signal with a received signal including a noise signal.
摘要翻译： 发送滤波器允许发送信号的频带中的信号通过发送滤波器并阻止其它频带中的信号。 从发送滤波器输出的发送信号通过天线共享装置提供给天线，并发送到外部。 反射信号检测器检测来自天线的反射信号的振幅和相位，并输出检测信号（DA和DP）。 控制电路基于检测信号（DA和DP）来调节控制信号（CA和CP）。 取消信号输出电路以这样的方式调整抵消信号，使得消除信号具有与反射信号相反的相位，并且通过使用控制信号（CA和CP）与反射信号的幅度相同的幅度， 。 复用器将消除信号与包括噪声信号的接收信号组合。
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公开(公告)号：US10063212B2
公开(公告)日：2018-08-28
申请号：US15485252
申请日：2017-04-12
发明人： Shinya Mizoguchi
CPC分类号： H03H9/0009 , H03H7/01 , H03H7/38 , H03H9/1071 , H03H9/25 , H03H9/64 , H03H9/706 , H03H9/725 , H04B1/525
摘要： A high-frequency module includes a propagation path that has a simple structure and improves filter characteristics by causing an inductor and a matching network to electromagnetic field couple with each other such that attenuation characteristics outside of a frequency band of a transmission signal are improved without increasing the size of the high-frequency module. In addition, unintended electromagnetic field coupling between a first filter and the inductor is significantly reduced or prevented by a shield electrode. Therefore, unintended propagation of a high-frequency signal is significantly reduced or prevented. Therefore, the attenuation characteristics outside of the frequency band of transmission signal input to the transmission terminal are improved more effectively.
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