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31.发明申请公开(公告)号：US20200106474A1
公开(公告)日：2020-04-02
申请号：US16145857
申请日：2018-09-28
申请人： Apple Inc.
摘要： Systems, methods, and devices for operating in either frequency division duplexing (FDD) or time division duplexing (TDD) for wireless communications using the same electrical balance duplexer (EBD) circuitry in a transceiver device are provided. A series of switches may selectively couple components of the EBD, such as a low noise amplifier (LNA), a power amplifier (PA), and balancing impedance, to ground based on selected operation mode (e.g., FDD or TDD) while reducing insertion loss of the receiver (RX) and transmitter (TX) signals. Tuned matching network blocks for the LNA and PA may be used in addition to the series of switches to provide impedance matching for additional reduction of insertion loss.
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公开(公告)号：US10574206B2
公开(公告)日：2020-02-25
申请号：US16015347
申请日：2018-06-22
发明人： Toru Eihama
摘要： A multiplexer includes a first filter, a second filter, a combining wiring line that provides a combination point at which an input or an output of each of the first filter and the second filter is connected to each other, an antenna terminal to connect the multiplexer to an antenna, an antenna wiring line connected at one end to the antenna terminal and connected at the other end to the combining wiring line, a matching terminal to which a matching inductor to provide matching between the antenna and the multiplexer is to be connected, and a matching wiring line to be connected at one end to the matching terminal and connected at the other end to the combining wiring line.
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公开(公告)号：US20200028479A1
公开(公告)日：2020-01-23
申请号：US16514797
申请日：2019-07-17
发明人： Hai H. Ta , Bo Pan , Weimin Sun , Dogan Gunes
摘要： Aspects of this disclosure relate to a hybrid acoustic LC filter cascaded with a non-acoustic LC filter. The hybrid acoustic filter can filter a radio frequency signal. The hybrid acoustic LC filter can include acoustic resonators, an inductor, and a capacitor. The inductor and capacitor can be external to an acoustic resonator die. The non-acoustic LC filter includes an LC circuit. Related multiplexers, wireless communication devices, and methods are disclosed.
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公开(公告)号：US20200007096A1
公开(公告)日：2020-01-02
申请号：US16567243
申请日：2019-09-11
发明人： Terumichi KITA
摘要： A high-frequency module (10) includes a filter unit (20) including a plurality of filters, a switch unit (30) that is connected to the filter unit (20) and that includes a switch configured to switch filters through which a high-frequency signal passes among the plurality of filters, an amplifying unit (50) configured to amplify the high-frequency signal passing through the filter unit (20), a matching unit (40) that is connected between the filter unit (20) and the amplifying unit (50) and that is configured to perform impedance matching of the amplifying unit (50), and a multilayer substrate (100) provided with the filter unit (20), the switch unit (30), the amplifying unit (50), and the matching unit (40).
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公开(公告)号：US20200006831A1
公开(公告)日：2020-01-02
申请号：US16566433
申请日：2019-09-10
发明人： BALEEGH ABDO
摘要： A cascading microwave switch (cascade) includes a set of Josephson devices, each Josephson device in the set having a corresponding operating bandwidth of microwave frequencies, wherein different operating bandwidths have different corresponding center frequencies. A series coupling is formed between first Josephson device from the set and an nth Josephson device from the set, wherein the series coupling causes the first Josephson device in an open state to reflect back to an input port of the first Josephson device a signal of a first frequency from a frequency multiplexed microwave signal (multiplexed signal) and the nth Josephson device in the open state to reflect back to an input port of the nth Josephson device a signal of an nth frequency from the multiplexed signal.
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公开(公告)号：US10523176B2
公开(公告)日：2019-12-31
申请号：US15887462
申请日：2018-02-02
摘要： The present disclosure relates to a front-end module for a telecommunication device with an EBD circuit comprising a hybrid transformer for coupling via a transmit port to the telecommunication device transmitting a first frequency transmit signal, to an antenna, via a receive port to the telecommunication device receiving a second frequency receive signal, and to a tunable impedance circuit. In a first configuration the EBD circuit is configured to isolate the transmit port from the receive port at the first frequency, and the FEM comprises a first filter at the transmit port for attenuating the transmit signal with a predetermined amount at the second frequency. In a second configuration the EBD circuit is configured to isolate the transmit port from the receive port at the second frequency, and the FEM comprises a second filter at the receive port for attenuating the receive signal a predetermined amount at the first frequency.
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公开(公告)号：US10439262B2
公开(公告)日：2019-10-08
申请号：US15769162
申请日：2015-12-09
发明人： Ryota Komaru , Masatake Hangai , Koji Yamanaka
IPC分类号： H01P1/15 , H03K17/693 , H04B1/48 , H03H7/46 , H04B1/44
摘要： There are provided: a first capacitor connected between first and second input/output terminals; a second capacitor connected between the first input/output terminal and a third input/output terminal; a first inductor having one end connected to the first input/output terminal; a second inductor having one end connected to the second input/output terminal and another end connected to another end of the first inductor; a third inductor having one end connected to the first input/output terminal; a fourth inductor having one end connected to the third input/output terminal and another end connected to another end of the third inductor; a first transistor having a drain terminal connected to said another ends of the first and second inductors and a source terminal that is grounded; and a second transistor having a drain terminal connected to said another ends of the third and fourth inductors and a source terminal that is grounded.
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公开(公告)号：US10389330B2
公开(公告)日：2019-08-20
申请号：US15673445
申请日：2017-08-10
发明人： Yusuke Mukai
摘要： An electronic component a multilayer body including insulation layers stacked in a stacking direction, a mounting surface that opposes a circuit board when the electronic component is mounted on the circuit board, first and second input/output terminals provided on the mounting surface and adjacent to each other, a ground terminal, a first filter circuit, in the multilayer body, electrically connected between the first input/output terminal and the second input/output terminal, and a ground conductor layer, provided between the first filter circuit and the mounting surface in the stacking direction, that overlaps with the first input/output terminal and the second input/output terminal when viewed in plan view from the stacking direction, and that is connected to the ground terminal.
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公开(公告)号：US20190214962A1
公开(公告)日：2019-07-11
申请号：US16018613
申请日：2018-06-26
发明人： Wolfgang FRANK , Qizhi GONG , Scott WALTER , Sanat KAPOOR
摘要： Certain aspects of the present disclosure provide a circuit for dividing or combining power. The circuit generally includes a Wilkinson power divider, a first capacitive element, and a first resistive element coupled in parallel with the first capacitive element, wherein the first capacitive element and the first resistive element are coupled between a first port of the circuit and a first port of the Wilkinson power divider.
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公开(公告)号：US20190181838A1
公开(公告)日：2019-06-13
申请号：US16278944
申请日：2019-02-19
发明人： Koji NOSAKA
摘要： A filter device includes a filter (22A) connected to a common terminal (110) and having a first characteristic, a variable filter (22B) connected to the common terminal (110) and capable of changing a characteristic to one of a second characteristic and a third characteristic, and a switch (23). In the second characteristic, a second pass band including an overlapping band in which the second pass band and an attenuation band of the filter (22A) partially overlap in frequency is defined. Insertion loss within the overlapping band for the third characteristic is greater than insertion loss within the overlapping band for the second characteristic. When the filter (22A) is selected by the switch (23), the characteristic of the variable filter (22B) is set to the third characteristic.
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