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Patent Agency Ranking
公开(公告)号：US20220329214A1
公开(公告)日：2022-10-13
申请号：US17658010
申请日：2022-04-05
Applicant: NXP B.V.
Inventor： Marc Gerardus Maria Stegers , Gian Hoogzaad , Alexander Simin
Abstract: A protection circuit and method for protecting driven circuitry against voltage peaks in a radio frequency signal, “VRF”, past a predetermined voltage level “Vdetect”. The protection circuit includes an input for receiving the radio frequency signal. The protection circuit also includes at least one amplification stage coupled to the input. The amplification stage is operable to produce an amplified signal based on Vdetect−VRF. The protection circuit further includes a hold circuit operable to determine, from the amplified signal produced by the amplification stage, whether a peak voltage Vpeak of the radio frequency signal exceeds Vdetect. The hold circuit is operable to output a first detection value if Vpeak exceeds Vdetect. The hold circuit is operable to output a second detection value if Vpeak does not exceed Vdetect. The protection circuit also includes a latch circuit operable to latch the detection value outputted by the hold circuit.
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公开(公告)号：US09419563B2
公开(公告)日：2016-08-16
申请号：US14527968
申请日：2014-10-30
Applicant: NXP B.V.
Inventor： Gian Hoogzaad , Alexander Simin , Hasan Gui
CPC classification number: H03F1/26 , H03F1/22 , H03F1/226 , H03F3/191 , H03F3/193 , H03F3/50 , H03F2200/294 , H03F2200/451 , H04W88/08
Abstract: A two-stage RF amplifier is provided. The first stage is a common-emitter transistor arrangement with a purely reactive degeneration impedance and an output impedance with a reactive component matched in frequency response to the degeneration impedance. The second stage is a buffer amplifier. The first amplifier can be designed for high gain which is flat over frequency by virtue of the reactive degeneration impedance. The first amplifier provides input matching, and the buffer provides output matching, with decoupling between the input and output.
Abstract translation: 提供两级RF放大器。 第一级是具有纯反应性退化阻抗的共发射极晶体管布置，并且具有与对退化阻抗的频率响应匹配的无功分量的输出阻抗。 第二级是缓冲放大器。 第一放大器可以设计用于通过反应性退化阻抗在频率上平坦的高增益。 第一个放大器提供输入匹配，并且缓冲器提供输出匹配和输入和输出之间的去耦。
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公开(公告)号：US20220352908A1
公开(公告)日：2022-11-03
申请号：US17660392
申请日：2022-04-22
Applicant: NXP B.V.
Inventor： Gian Hoogzaad , Jozef Reinerus Maria Bergervoet , Alexander Simin
Abstract: An antenna switch circuit and an antenna circuit switching method. The circuit includes an antenna port, a termination port (e.g., for disposal of power reflected back from an antenna and received through the antenna port in a transmit mode), and a receive port (e.g., for receiving a signal from the antenna port via the antenna switch circuit in a receive mode). The circuit also includes a first switch coupled between the antenna port and the termination port. The circuit further includes a resonant inductance coupled between the receive port and the node located between the antenna port and the first switch. The circuit also includes a second switch coupled between a reference potential and a node located between the resonant inductance and the receive port.
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公开(公告)号：US11923877B2
公开(公告)日：2024-03-05
申请号：US17660392
申请日：2022-04-22
Applicant: NXP B.V.
Inventor： Gian Hoogzaad , Jozef Reinerus Maria Bergervoet , Alexander Simin
CPC classification number: H04B1/006 , H04B1/163 , H04B1/44 , H04B7/0602
Abstract: An antenna switch circuit and an antenna circuit switching method. The circuit includes an antenna port, a termination port (e.g., for disposal of power reflected back from an antenna and received through the antenna port in a transmit mode), and a receive port (e.g., for receiving a signal from the antenna port via the antenna switch circuit in a receive mode). The circuit also includes a first switch coupled between the antenna port and the termination port. The circuit further includes a resonant inductance coupled between the receive port and the node located between the antenna port and the first switch. The circuit also includes a second switch coupled between a reference potential and a node located between the resonant inductance and the receive port.
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公开(公告)号：US20150123732A1
公开(公告)日：2015-05-07
申请号：US14527968
申请日：2014-10-30
Applicant: NXP B.V.
Inventor： Gian Hoogzaad , Alexander Simin , Hasan Gui
CPC classification number: H03F1/26 , H03F1/22 , H03F1/226 , H03F3/191 , H03F3/193 , H03F3/50 , H03F2200/294 , H03F2200/451 , H04W88/08
Abstract: A two-stage RF amplifier is provided. The first stage is a common-emitter transistor arrangement with a purely reactive degeneration impedance and an output impedance with a reactive component matched in frequency response to the degeneration impedance. The second stage is a buffer amplifier. The first amplifier can be designed for high gain which is flat over frequency by virtue of the reactive degeneration impedance. The first amplifier provides input matching, and the buffer provides output matching, with decoupling between the input and output.
Abstract translation: 提供两级RF放大器。 第一级是具有纯反应性退化阻抗的共发射极晶体管布置，并且具有与对退化阻抗的频率响应匹配的无功分量的输出阻抗。 第二级是缓冲放大器。 第一放大器可以设计用于通过反应性退化阻抗在频率上平坦的高增益。 第一个放大器提供输入匹配，并且缓冲器提供输出匹配和输入和输出之间的去耦。
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