Power generation

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A High-Efficiency Low-Cost Multi-Antenna Energy Harvesting System With Leakage Suppression

A High-Efficiency Low-Cost Multi-Antenna Energy Harvesting System With Leakage Suppression 150 150
Author(s): Zhaobo Zhang, Chenchang Zhan, Shuangxing Zhao, Man-Kay Law

Abstract:

This article presents a multi-antenna RF energy harvester (MARFEH) with leakage suppression to achieve high output power and avoid the effects of interference and blind spots in the room, and all the RF rectifiers share only one buffering capacitor to achieve low cost. The proposed leakage-suppressed rectifier utilizing adaptive $V_{…

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3387025
Publisher: IEEE

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248-GHz Subharmonic Mixer Last Transmitter With I/Q Imbalance and LO Feedthrough Calibration

248-GHz Subharmonic Mixer Last Transmitter With I/Q Imbalance and LO Feedthrough Calibration 150 150
Author(s): Seunghoon Lee, Junhyeong Kim, Kangseop Lee, Ho-Jin Song

Abstract:

This letter presents a 248 GHz compact direct-conversion transmitter with IQ and LO feedthrough (LOFT) calibration capability, which can achieve a data rate of 20-Gb/s with 16-QAM. The transmitter design incorporates a subharmonic double-balanced mixer configuration, simplifying the complexity of the local oscillator (LO) chain. Furthermore, a Wilkinson power divider …

Published in: IEEE Solid-State Circuits Letters
Page(s): 159 – 162
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3387285
Publisher: IEEE

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A Ka-Band Mutual Coupling Resilient Stacked-FET Power Amplifier With 21.2 dBm OP1dB and 27.6% PAE1dB in 45-nm CMOS SOI

A Ka-Band Mutual Coupling Resilient Stacked-FET Power Amplifier With 21.2 dBm OP1dB and 27.6% PAE1dB in 45-nm CMOS SOI 150 150
Author(s): Jian Zhang, Dawei Wang, Wei Zhu, Ming Zhai, Xiangjie Yi, Yan Wang

Abstract:

This letter presents a Ka-band mutual coupling resilient stacked-FET power amplifier (PA) in 45-nm CMOS silicon on insulator. Two sub-PAs with triple-stacked-FET to increase output-power (Pout) are combined through a quadrature hybrid coupler to keep robust and high performance in the scenario of mutual coupling among the phased-array antennas. A …

Published in: IEEE Solid-State Circuits Letters
Page(s): 147 – 150
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3386676
Publisher: IEEE

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