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公开(公告)号：US11588461B2
公开(公告)日：2023-02-21
申请号：US17865441
申请日：2022-07-15
发明人： Shoma Yasuda , Hiroto Motoyama , Masayuki Kikuda
摘要： A resonant element includes first, second, and third plane electrodes, a first via electrode defining a first inductor, a second inductor, and a third inductor. The first via electrode connects the first plane electrode and the second plane electrode, and each of the second inductor and the third inductor connects the first plane electrode and the third plane electrode. The third plane electrode defines a first capacitor together with the second plane electrode, the second inductor includes second via electrodes, and the third inductor includes third via electrodes. Each of the second via electrodes and the third via electrodes is a columnar conductor extending in the extending direction of the first via electrode.
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公开(公告)号：US11496107B2
公开(公告)日：2022-11-08
申请号：US17246993
申请日：2021-05-03
发明人： Kang Ta Jo , Seong Jong Cheon
摘要： A frontend module includes a first filter having a passband of a first frequency band, a second filter having a passband of a second frequency band, the second frequency band being higher than the first frequency band, a third filter having a passband of a third frequency band, the third frequency band being higher than the second frequency band, and a sub-filter, connected to the second filter, configured to provide attenuation characteristics for the first frequency band, wherein the second filter comprises a plurality of parallel LC resonance circuits arranged between a ground and different nodes, from among a plurality of nodes between a first terminal and a second terminal, wherein an inductor is connected to a portion of the plurality of parallel LC resonance circuits.
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3.发明授权公开(公告)号：US11469190B2
公开(公告)日：2022-10-11
申请号：US16078001
申请日：2016-03-15
申请人： Intel Corporation
发明人： Sidharth Dalmia
摘要： Described is an apparatus which comprises: a first transmission path for a first frequency band; a second transmission path for a second frequency band different from the first frequency band; a node common to the first and second transmission paths, the node to be coupled to an antenna; and a transmission-zero circuit coupled to the common node.
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公开(公告)号：US11418223B2
公开(公告)日：2022-08-16
申请号：US16874858
申请日：2020-05-15
发明人： Tzu-Hao Hsieh , Chih-Chieh Wang
摘要： The present disclosure provides a dual-band transformer structure, which is suitable for at least two frequencies. The dual-band transformer structure includes a metal layer, a first transmission line, a second transmission line, and a third transmission line. The first transmission line and the second transmission line are disposed on the metal layer. A first end of the second transmission line is coupled to a second end of the first transmission line. A second end of the second transmission line is aligned with an edge of the metal layer, and a first end of the third transmission line is coupled to the second end of the second transmission line. The third transmission line extends away from the edge.
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公开(公告)号：US20220239318A1
公开(公告)日：2022-07-28
申请号：US17658705
申请日：2022-04-11
发明人： Kenji TAHARA , Toshiki MATSUI
摘要： A radio frequency module includes a transmit filter of Band A and Band B, a transmit amplifier, and a switch circuit and can perform CA using a transmit signal of Band A and a receive signal of Band B, a transmit band of Band B including a receive band of Band C. The switch circuit includes a switch switching connection between a common terminal and a first selection terminal, a switch switching connection between the common terminal and a second selection terminal, and a switch switching connection between the second selection terminal and a third selection terminal. The common terminal is connected to the transmit amplifier. The first selection terminal is connected to the transmit filter of Band A. The second selection terminal is connected to the transmit filter of Band B. The third selection terminal is connected to a receive path of Band C.
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公开(公告)号：US11356078B2
公开(公告)日：2022-06-07
申请号：US17073590
申请日：2020-10-19
申请人： Apple Inc.
摘要： Systems, methods, and devices for reducing insertion loss and/or swapping transmitter (TX) and receiver (RX) frequencies in an electrical balance duplexer (EBD) used in a transceiver device for frequency division duplexing (FDD) applications are provided. Feed-forward receiver path from the antenna to a low noise amplifier (LNA) and a feed-forward path from the antenna to a power amplifier (PA) of the EBD may be used for reducing insertion loss of the RX and TX signals. In some embodiments, switches may be used to selectively alter operational modes for varied levels of isolation and/or swapping of TX and RX frequencies.
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公开(公告)号：US11336238B2
公开(公告)日：2022-05-17
申请号：US16161117
申请日：2018-10-16
发明人： Hideki Muto
摘要： A high-frequency module includes a plurality of filters, a switch that commonly connects a plurality of paths, and a low noise amplifier that amplifies a high-frequency signal input from the plurality of filters with the switch interposed therebetween, wherein paths in which first and second filters are respectively provided among the plurality of paths connect the respective filters and the switch without connecting impedance elements, and each of the first and second filters has an output impedance located in a matching region between a NF matching impedance at which an NF of the low noise amplifier is minimum and a gain matching impedance at which a gain of the low noise amplifier is maximum in its respective pass band thereof on a Smith chart.
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公开(公告)号：US11322284B2
公开(公告)日：2022-05-03
申请号：US16159804
申请日：2018-10-15
发明人： Noriyuki Ueki
摘要： A high-frequency transformer includes a primary coil and a secondary coil coupled to each other by magnetic field coupling and sharing a coil winding axis, a first terminal connected to a first end of the primary coil, a second terminal connected to a first end of the secondary coil, and a common terminal connected to a second end of the primary coil and a second end of the secondary coil. The primary and secondary coils are helical coils including loop conductor patterns, and the number of turns of a first loop conductor pattern closest to the second end of the primary coil is larger than an average number of turns of other loop conductor patterns included in the primary coil.
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公开(公告)号：US20220006443A1
公开(公告)日：2022-01-06
申请号：US17358484
申请日：2021-06-25
发明人： Keisuke NISHIO
摘要： A filter includes first and second input/output terminals; an LC parallel resonance circuit that includes an inductor L1 and a capacitor C1 connected to each other in parallel; and an acoustic wave series resonance circuit that includes series arm resonators s1 and s2 connected to each other in series. The LC parallel resonance circuit and the acoustic wave series resonance circuit are connected to each other in series between the first input/output terminal and the second input/output terminal.
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公开(公告)号：US11211911B2
公开(公告)日：2021-12-28
申请号：US16742345
申请日：2020-01-14
发明人： Dongjin Jung , Hanseung Lee , Weimin Sun
摘要： Examples of a capacitive-coupled bandpass filter include a plurality of coupling capacitors connected in series along a signal path extending between an input contact and an output contact, a first harmonic suppression notch circuit configured to provide a first harmonic suppression notch in a frequency response of the capacitive-coupled bandpass filter, and a second harmonic suppression notch circuit configured to provide a second harmonic suppression notch in the frequency response of the capacitive-coupled bandpass filter. The first harmonic suppression notch circuit includes a first pair of series L/C resonators connected in shunt between the signal path and a reference potential, and the second harmonic suppression notch circuit includes a second pair of series L/C resonators connected in shunt between the signal path and the reference potential.
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