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1. 发明公开

US20240113739A1 TRANSMIT AND RECEIVE SWITCH WITH TRANSFORMER 审中-公开
公开(公告)号：US20240113739A1
公开(公告)日：2024-04-04
申请号：US17957253
申请日：2022-09-30
申请人： TEXAS INSTRUMENTS INCORPORATED
发明人： Tolga DINC , Swaminathan SANKARAN
IPC分类号： H04B1/18 , H03H2/00 , H04B1/00
CPC分类号： H04B1/18 , H03H2/008 , H04B1/0078 , H01Q23/00
摘要： In examples, an electronic device includes an antenna and a transmitter line. The transmitter line includes a double-tuned transformer having first and second windings, the first winding having first and second ends, the second winding having third and fourth ends, and the third end coupled to the antenna. The transmitter line includes a first capacitor coupled between the first and second ends. The transmitter line also includes a second capacitor coupled between the third and fourth ends, and a switch coupled between the first end and a reference terminal.

2. 发明授权

US11356070B2 RF amplifiers having shielded transmission line structures 有权
公开(公告)号：US11356070B2
公开(公告)日：2022-06-07
申请号：US16888957
申请日：2020-06-01
申请人： Wolfspeed, Inc.
发明人： Kwangmo Chris Lim , Basim Noori , Qianli Mu , Marvin Marbell , Scott Sheppard , Alexander Komposch
IPC分类号： H03F3/72 , H01Q1/52 , H03F1/56 , H03F3/19 , H03F3/21 , H03H2/00
摘要： RF transistor amplifiers include an RF transistor amplifier die having a semiconductor layer structure, a coupling element on an upper surface of the semiconductor layer structure, and an interconnect structure on an upper surface of the coupling element so that the RF transistor amplifier die and the interconnect structure are in a stacked arrangement. The coupling element includes a first shielded transmission line structure.

3. 发明授权

US10727804B2 Chip-scale resonant gyrator for passive non-reciprocal devices 有权
公开(公告)号：US10727804B2
公开(公告)日：2020-07-28
申请号：US15790999
申请日：2017-10-23
申请人： The Board of Trustees of the University of Illinois
发明人： Songbin Gong , Ruochen Lu , Tomas Manzaneque Garcia , Cheng Tu , Daniel Shoemaker , Chengxi Zhao
IPC分类号： H03H7/00 , H03C1/46 , H03H2/00 , H01F10/12 , H01F10/26 , H01F21/08 , H01L41/00 , H01F10/20
摘要： An integrated circuit is a layered device, on a semiconductor substrate, which contains metal electrodes that sandwich a piezoelectric layer, followed by a magnetostrictive layer and a metal coil. The metal electrodes define an electrical port across which to receive an alternating current (AC) voltage, which is applied across the piezoelectric layer to cause a time-varying strain in the piezoelectric layer. The magnetostrictive layer is to translate the time-varying strain, received by way of a vibration mode from interaction with the piezoelectric layer, into a time-varying electromagnetic field. The metal coil, disposed on the magnetostrictive layer, includes a magnetic port at which to induce a current based on exposure to the time-varying electromagnetic field generated by the magnetostrictive layer.

4. 发明授权

US10680570B2 Magnetoresistance effect device and high frequency device 有权
公开(公告)号：US10680570B2
公开(公告)日：2020-06-09
申请号：US16123675
申请日：2018-09-06
申请人： TDK CORPORATION
发明人： Takekazu Yamane
IPC分类号： H01L43/02 , H03H2/00 , H01L43/10 , H03B15/00 , H01L43/08
摘要： Provided is a magnetoresistance effect device that functions as a high frequency device such as a high frequency filter or the like. The magnetoresistance effect device includes a magnetoresistance effect element having a first ferromagnetic layer, a second ferromagnetic layer, and a spacer layer sandwiched between the first ferromagnetic layer and the second ferromagnetic layer, a first signal line configured to generate a high frequency magnetic field as a high frequency current flows, a direct current application terminal to which a power supply is able to be connected to cause a direct current to flow to the magnetoresistance effect element in a lamination direction, and an independent magnetic body configured to receive a high frequency magnetic field generated in the first signal line to oscillate magnetization and apply a magnetic field generated through the magnetization to the magnetoresistance effect element.

5. 发明申请

US20200027476A1 MAGNETORESISTIVE EFFECT ELEMENT, MAGNETIC HEAD, SENSOR, HIGH-FREQUENCY FILTER, AND OSCILLATOR 审中-公开
公开(公告)号：US20200027476A1
公开(公告)日：2020-01-23
申请号：US16565955
申请日：2019-09-10
申请人： TDK CORPORATION
发明人： Kazuumi INUBUSHI , Katsuyuki NAKADA
IPC分类号： G11B5/39 , G11B5/31 , H01L43/08 , H01L43/12 , H03B15/00 , G01R33/09 , H01L43/10 , H03H2/00
摘要： A nonmagnetic spacer layer in a magnetoresistive effect element includes a nonmagnetic metal layer that is formed of Ag and at least one of a first insertion layer that is disposed on a bottom surface of the nonmagnetic metal layer and a second insertion layer that is disposed on a top surface of the nonmagnetic metal layer. The first insertion layer and the second insertion layer include an Fe alloy that is expressed by FeγX1-γ. Here, X denotes one or more elements selected from a group consisting of O, Al, Si, Ga, Mo, Ag, and Au, and γ satisfies 0

6. 发明授权

US10527457B2 Inductance sensing 有权
公开(公告)号：US10527457B2
公开(公告)日：2020-01-07
申请号：US15554181
申请日：2016-02-26
申请人： AZOTEQ (PTY) LTD
发明人： Frederick Johannes Bruwer , Douw Gerbrandt Van Der Merwe
IPC分类号： G01D5/20 , H03H2/00
摘要： Inductance values are measured though the use of a charge transfer based measurement system. During a first phase, a target inductor is connected to an energy source to allow current through an inductor to increase. In a second phase, the inductor is disconnected from the energy source, to allow the current to decrease, and to facilitate transfer of charge to a capacitor. The phases may be repeated, and a count is kept of the number of repetitions.

7. 发明申请

US20190109575A1 LINEAR, LOW NOISE, HIGH Q AND WIDELY TUNABLE NOTCH FILTER 审中-公开
公开(公告)号：US20190109575A1
公开(公告)日：2019-04-11
申请号：US15730643
申请日：2017-10-11
申请人： Avago Technologies General IP (Singapore) Pte. Ltd.
发明人： Milad DARVISHI , Hooman DARABI , Arya Reza BEHZAD
IPC分类号： H03H7/01 , H03H2/00 , H03H7/12 , H04J1/04
CPC分类号： H03H7/01 , H03H2/008 , H03H7/12 , H03H19/002 , H03H2001/0014 , H03H2007/013 , H03H2210/025 , H04J1/045
摘要： A linear, low noise, high quality factor (Q) and widely tunable notch filter circuit includes one or more first reactive elements coupled between a first filter node and a first node. The notch filter circuit further includes a multi-branch circuit having multiple parallel branches and coupled between the first node and a second node. Each branch of the multi-branch circuit includes at least a switch coupled to a variable capacitor. A notch frequency of the notch filter circuit is tunable by adjusting a capacitance of the variable capacitor.

8. 发明授权

US09966922B2 Magnetoresistive effect device 有权
公开(公告)号：US09966922B2
公开(公告)日：2018-05-08
申请号：US15600066
申请日：2017-05-19
申请人： TDK CORPORATION
发明人： Tetsuya Shibata , Junichiro Urabe , Takekazu Yamane , Tsuyoshi Suzuki
IPC分类号： H03H2/00 , H01L43/00 , G11B5/39
CPC分类号： H03H2/00 , G01R33/00 , G01R33/093 , G01R33/1284 , G11B5/3945 , H01L43/00
摘要： A magnetoresistive effect device includes a magnetoresistive effect element first and second ports, a signal line, an inductor, and a direct current input terminal. The first port, the magnetoresistive effect element, and the second port are connected in series in this order via the signal line. The inductor is connected to one of the signal line between the magnetoresistive effect element and the first port and the signal line between the magnetoresistive effect element and the second port and is capable of being connected to ground. The direct-current input terminal is connected to the other of the above signal lines. A closed circuit including the magnetoresistive effect element, the signal line, the inductor, the ground, and direct-current input terminal is capable of being formed. The magnetoresistive effect element is arranged so that direct current flows in a direction from a magnetization fixed layer to a magnetization free layer.

9. 发明授权

US09691540B2 Hybrid passive device and hybrid manufacturing method 有权
公开(公告)号：US09691540B2
公开(公告)日：2017-06-27
申请号：US14736653
申请日：2015-06-11
申请人： MediaTek Inc.
发明人： Tao-Yi Lee , Po-Sen Tseng , Ming-Da Tsai
IPC分类号： H03H2/00 , H03H7/42 , H01F27/28 , H01L23/522 , H01L23/48
CPC分类号： H01F27/2847 , H01L23/48 , H01L23/5222 , H01L23/5227
摘要： A hybrid passive device for synergizing at least one passive component which resides in at least one technology is provided. The hybrid passive device includes a first passive component and a second passive component. The first passive component resides in a first technology of the at least one technology and/or a second technology of the at least one technology, the second technology is different from the first technology, and a technology boundary is arranged between the second technology and the first technology. The second passive component of the at least one passive component is different from the first passive component. The second passive component resides in the first technology and/or the second technology, and the first passive component and the second passive component are electromagnetically coupled to each other through the technology boundary.

10. 发明申请

US20160380604A1 TRANSFORMER BASED DUPLEXER 审中-公开
标题翻译：基于变压器的双工器
公开(公告)号：US20160380604A1
公开(公告)日：2016-12-29
申请号：US14752811
申请日：2015-06-26
申请人： INTEL IP CORPORATION
发明人： Gregory Chance , Nebil Tanzi
IPC分类号： H03H2/00 , H01F38/14 , H03H11/04
CPC分类号： H03H2/005 , H01F19/08 , H01F2019/085 , H03H11/04 , H03H11/344
摘要： A tunable transformer based duplexer (TTBD) comprising a first antenna port and a second antenna port. The TTBD further comprises a first winding coupled between a transmitting port and the first antenna port, wherein the first antenna port is configured to receive a first signal; a second winding coupled between the transmitting port and the second antenna port, wherein the second antenna port is configured to receive a second signal. Further, the TTBD comprises a receiving amplifier comprising at least one input and at least one output. The TTBD also comprises a third winding comprising a first terminal and a second terminal. The third winding comprises a first inductance and is coupled to the at least one output of the amplifier circuit. A first coupling is formed between the first winding and the third winding and a second coupling is formed between the second winding and the third winding. The TTBD further comprises a tunable capacitance coupled between the first terminal and the second terminal of the third winding. The tunable capacitance and the first inductance together form a band-pass filter.
摘要翻译：一种可调谐变压器双工器（TTBD），包括第一天线端口和第二天线端口。 TTBD还包括耦合在发射端口和第一天线端口之间的第一绕组，其中第一天线端口被配置为接收第一信号; 耦合在所述发射端口和所述第二天线端口之间的第二绕组，其中所述第二天线端口被配置为接收第二信号。此外，TTBD包括包括至少一个输入和至少一个输出的接收放大器。 TTBD还包括第三绕组，其包括第一端子和第二端子。第三绕组包括第一电感并耦合到放大器电路的至少一个输出端。在第一绕组和第三绕组之间形成第一耦合，并且在第二绕组和第三绕组之间形成第二耦合。 TTBD还包括耦合在第三绕组的第一端子和第二端子之间的可调谐电容。可调电容和第一电感一起形成带通滤波器。

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