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公开(公告)号：US11671068B1
公开(公告)日：2023-06-06
申请号：US17678177
申请日：2022-02-23
CPC分类号： H03H7/0115 , H03H7/1741 , H03H2001/0085 , H03H2007/013
摘要： An LC (inductor-capacitor) tank includes a primary 8-shape inductor and a serial LC network that are connected in parallel across a first node and a second node and laid out using a multi-layer structure fabricated on a substrate, wherein a magnetic coupling between the primary 8-shape inductor and the serial LC network is mitigated due to a layout symmetry, and a resonant frequency of the serial LC network is equal to three times of a resonance frequency of the LC tank.
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公开(公告)号：US20210217557A1
公开(公告)日：2021-07-15
申请号：US16739165
申请日：2020-01-10
摘要： A radio transmitter includes a power amplifier configured to receive an input voltage signal and output an output voltage signal; a transformer configured to receive the output voltage signal and output a load voltage signal to a load; a sensing inductor configured to output a sensed current signal in accordance with a magnetic coupling with the transformer; a digitally controlled phase shifter configured to receive the output voltage signal and output a phase-shifted voltage signal in accordance with a phase control code; a mixer configured to output a mixed current signal in accordance with a mixing of the sensed current signal and the phase-shifted voltage signal; and a transimpedance amplifier with of a low-pass response configured to convert the mixed current signal into a mean voltage signal.
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公开(公告)号：US11716071B2
公开(公告)日：2023-08-01
申请号：US17540346
申请日：2021-12-02
IPC分类号： H03K5/00 , H03H7/00 , H03H11/04 , H03F3/19 , H03K17/687
CPC分类号： H03H11/04 , H03K17/6872
摘要： A N-path filter includes a plurality of switch-capacitor circuits controlled by a plurality of logical signals, respectively, and joined at a common shunt node, each of said switch-capacitor circuit comprising: a respective switch configured to controllably connect the common shunt node to a respective middle node in accordance with a respective logical signals among said plurality of logical signals; and a respective balanced MOS (metal oxide semiconductor) capacitor connected to the respective middle node, wherein the respective balanced MOS capacitor exhibits a capacitance at the respective middle node with reference to a power supply node and a ground node.
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公开(公告)号：US20230179174A1
公开(公告)日：2023-06-08
申请号：US17540346
申请日：2021-12-02
IPC分类号： H03H11/04 , H03K17/687
CPC分类号： H03H11/04 , H03K17/6872
摘要： A N-path filter includes a plurality of switch-capacitor circuits controlled by a plurality of logical signals, respectively, and joined at a common shunt node, each of said switch-capacitor circuit comprising: a respective switch configured to controllably connect the common shunt node to a respective middle node in accordance with a respective logical signals among said plurality of logical signals; and a respective balanced MOS (metal oxide semiconductor) capacitor connected to the respective middle node, wherein the respective balanced MOS capacitor exhibits a capacitance at the respective middle node with reference to a power supply node and a ground node.
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公开(公告)号：US11380481B2
公开(公告)日：2022-07-05
申请号：US16739165
申请日：2020-01-10
摘要： A radio transmitter includes a power amplifier configured to receive an input voltage signal and output an output voltage signal; a transformer configured to receive the output voltage signal and output a load voltage signal to a load; a sensing inductor configured to output a sensed current signal in accordance with a magnetic coupling with the transformer; a digitally controlled phase shifter configured to receive the output voltage signal and output a phase-shifted voltage signal in accordance with a phase control code; a mixer configured to output a mixed current signal in accordance with a mixing of the sensed current signal and the phase-shifted voltage signal; and a transimpedance amplifier with of a low-pass response configured to convert the mixed current signal into a mean voltage signal.
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