Gain

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K/Ka-Band Hybrid-Packaged Four-Element Four-Beam Phased-Array Transmitter and Receiver Front-Ends With Optimized Beamforming Passive Networks

K/Ka-Band Hybrid-Packaged Four-Element Four-Beam Phased-Array Transmitter and Receiver Front-Ends With Optimized Beamforming Passive Networks 150 150
Author(s): Mengru Yang, Dixian Zhao, Chenyu Xu, Peng Gu, Yongran Yi, Mohan Guo, Xiangxi Yan, Liangliang Liu, Yuan Chai, Huiqi Liu, Xiaohu You

Abstract:

This article presents K/Ka-band four-element four-beam phased-array transmitter (TX) and receiver (RX) front-ends. Hybrid-packaged technology is employed, consisting of one TX/RX 65-nm CMOS beamformer and four 0.1- $mu$ m GaAs power amplifiers (PAs)/low-noise amplifiers (LNAs). Each beam maintains a full connection to every antenna element without degrading …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3391893
Publisher: IEEE

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Full-Duplex Receiver With Wideband, High-Power RF Self-Interference Cancellation Based on Capacitor Stacking in Switched-Capacitor Delay Lines

Full-Duplex Receiver With Wideband, High-Power RF Self-Interference Cancellation Based on Capacitor Stacking in Switched-Capacitor Delay Lines 150 150
Author(s): Sasank Garikapati, Aravind Nagulu, Igor Kadota, Mostafa Essawy, Tingjun Chen, Shibo Wang, Tanvi Pande, Arun S. Natarajan, Gil Zussman, Harish Krishnaswamy

Abstract:

The self-interference (SI) channels in full-duplex (FD) radios have large nano-second-scale delay spreads, which poses a significant challenge in designing SI cancelers that can emulate the SI channel over wide bandwidths. Passive implementations of high delay lines have a prohibitively large form factor and loss when implemented on silicon, whereas …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 16
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3351615
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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A Low-Power, Compact, 0.1–5.5-GHz, 40-dBm IB OIP3 LNTA-First Receiver for SDR

A Low-Power, Compact, 0.1–5.5-GHz, 40-dBm IB OIP3 LNTA-First Receiver for SDR 150 150
Author(s): Cong Tao, Liangbo Lei, Chaoyang Zheng, Yumei Huang, Zhiliang Hong, Xiaoyang Zeng

Abstract:

This article presents a low-power (LP), compact, wideband (WB) low-noise transconductance amplifier (LNTA)-first receiver (RX) designed for software-defined radios (SDRs). It comprises the LNTA, frequency divider, mixer, and trans-impedance amplifier (TIA). The LNTA utilizes a common gate (CG)-common source (CS) structure without on-chip inductors and incorporates gm-boosting and …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2024
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2024.3379892
Publisher: IEEE

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A 4-Element Ka-Band Phased-Array Receiver With Code-Domain Hybrid Beamforming

A 4-Element Ka-Band Phased-Array Receiver With Code-Domain Hybrid Beamforming 150 150
Author(s): Ziyi Lin, Haikun Jia, Chuanming Zhu, Wei Deng, Huabing Liao, Bao Shi, Lujie Hao, Xiangrong Huang, Baoyong Chi

Abstract:

This letter presents a 4-element phased-array receiver with code-domain hybrid beamforming (CDHBF) in 65-nm CMOS technology. Code-division multiplexing is used to fully preserve the flexibility in the digital domain while using a single RF interface, which reduces the RF chain complexity, reduces the chip area, and improves power efficiency. Phase …

Published in: IEEE Solid-State Circuits Letters
Page(s): 123 – 126
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3379562
Publisher: IEEE

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An Ultrasound Receiver With Bandwidth-Enhanced Current Conveyor and Element-Level Ultrasound Transmitter for Ultrasound Imaging Systems

An Ultrasound Receiver With Bandwidth-Enhanced Current Conveyor and Element-Level Ultrasound Transmitter for Ultrasound Imaging Systems 150 150
Author(s): Gichan Yun, Kyeongwon Jeong, Haidam Choi, Seunghyun Nam, Chaerin Oh, Hyunjoo Jenny Lee, Sohmyung Ha, Minkyu Je

Abstract:

In this letter, we present an ultrasound (US) imaging system with a low-noise US receiver (RX) and an element-level US transmitter (TX) for a capacitive micromachined ultrasonic transducer (CMUT). The proposed US RX isolates the input parasitic capacitance $(C_{P})$ from the front-end transimpedance stage by using a bandwidth-enhanced current …

Published in: IEEE Solid-State Circuits Letters
Page(s): 98 – 101
Year of Publication: 2024
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2024.3369605
Publisher: IEEE

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