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Experimental Study on the Piezoelectric Prestage Driver of Electrohydraulic Servo Valves

CHENG Guang-ming, SHEN Chuan-liang, YANG Zhi-gang

Frontiers of Mechanical Engineering 2006, Volume 1, Issue 1,   Pages 56-59 doi: 10.1007/s11465-005-0017-4

Abstract: The displacement of a piezoelectric multilayer actuator was amplified by a flexure-hinged amplifier based

Keywords： flexure-hinged amplifier     kHz     amplification     high-frequency     electromagnetic    

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Robust control of

Xueyan TANG, I-Ming CHEN

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 25-34 doi: 10.1007/s11465-009-0004-2

Abstract: This article describes the development of an flexure-based micromanipulator, with the features of decoupledThe large motion range of flexure mechanisms is quantified by a given definition.Based on the given definition, large motion is achieved in the mechanical design of the -flexure parallelThe controller strongly solves the three common problems of flexure mechanisms simultaneously, including

Keywords： robust control     flexure mechanisms     flexure-based micromanipulator    

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A Large Range Flexure-Based Servo System Supporting Precision Additive Manufacturing

Zhen Zhang, Peng Yan, Guangbo Hao

Engineering 2017, Volume 3, Issue 5,   Pages 708-715 doi: 10.1016/J.ENG.2017.05.020

Abstract:

This paper presents the design, development, and control of a large range beam flexure-based nanoAs a key enabler of high accuracy in this process, a compact desktop-size beam flexure-based nanopositionerThis beam flexure-based motion system is highly suitable for harsh operation conditions, as no assembly

Keywords： Precision additive manufacturing.Micro-stereolithography.Nanopositioning.Beam flexure    

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High linearity U-band power amplifier design: a novel intermodulation point analysis method Research Article

Jie CUI, Peipei LI, Weixing SHENG,cuijie@njust.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 1,   Pages 176-186 doi: 10.1631/FITEE.2200082

Abstract: The amplifier achieves a higher than 23 dBm and a maximum PAE higher than 25% in the measured bandwidth

Keywords： CMOS silicon-on-insulator (SOI)     Linearity analysis     Milimeter wave (mm-Wave)     Power amplifier    

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A novel method for extending the output power back-off range of an asymmetrical Doherty power amplifier Research Article

Mingyu LI, Xiaobing CHENG, Zhijiang DAI, Kang ZHONG, Tianfu CAI, Chaoyi HUANG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 3,   Pages 470-479 doi: 10.1631/FITEE.2200250

Abstract: away from infinity and changing the phase delay of the output matching network of the carrier power amplifier

Keywords： Doherty power amplifier (DPA)     Output power back-off (OPBO)     Output impedance     Network phase    

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Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system

Nazim Abdul NARIMAN, Martin HUSEK, Ilham Ibrahim MOHAMMAD, Kaywan Othman AHMED, Diyako DILSHAD, Ibrahim KHIDR

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 2,   Pages 378-389 doi: 10.1007/s11709-021-0706-z

Abstract: tests on two specimens of reinforced concrete beams using a three-point bending test to optimize the flexureThe results of the flexure test were collected and analyzed, and the flexural strength, the rate of damagemodeling was applied for both specimens using the LS-DYNA program, and the simulation results of the flexureflexural cracks decreased to a significant extent, manifesting extremely small and narrow cracks in the flexureThe invented reinforcement system exhibited a high capability in boosting the flexure design and stiffness

Keywords： three-point flexure test     softening stage     flexural crack     flexural strain    

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A modular design kit for task-adaptable low-cost robots based on BaPaMan design

G. BORCHERT, C. L?CHTE, G. CARBONE, A. RAATZ

Frontiers of Mechanical Engineering 2013, Volume 8, Issue 1,   Pages 33-41 doi: 10.1007/s11465-013-0356-5

Abstract: BaPaMan is a three degree of freedom (DOF) spatial parallel robot which comprises flexure hinges andDuring the design phase, an empirical FEA is used to improve the flexure hinge performance, which analyses

Keywords： binary actuation     flexure hinges     SMA actuators     low-cost     design kit     task-adaptation    

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Electronically enhancing the long-range nanopositioning accuracy of a Lorentz force actuator Research Article

Bimal Jeet GOTEEA, Qianjun ZHANG, Wei DONG,bj.goteea@gmail.com,zhang_qj@stu.hit.edu.cn,dongwei@hit.edu.cn

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 7,   Pages 1080-1092 doi: 10.1631/FITEE.2200255

Abstract: An additional digital-to-analog converter and an operational amplifier (op amp) circuit together withFirst, a suitable coil is designed for the actuator based on the stiffness of the flexure guide modelThe flexure mechanism and actuator performance are then verified with finite element analysis.

Keywords： Nanopositioning     Flexure guides     Long range     Voice coil motor     Lorentz force actuator    

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Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review Review Articles

Xin LIU, Guan-sheng LV, De-han WANG, Wen-hua CHEN, Fadhel M. GHANNOUCHI

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 72-96 doi: 10.1631/FITEE.1900467

Abstract: Highly efficient power amplifiers (PAs) and associated linearization techniques have been developed to accommodate the explosive growth in the data transmission rate and application of massive multiple input multiple output (mMIMO) systems. In this paper, energy-efficient integrated Doherty PA monolithic microwave integrated circuits (MMICs) and linearization techniques are reviewed for both the sub-6 GHz and millimeter-wave (mm-Wave) fifth-generation (5G) mMIMO systems; different semi-conductor processes and architectures are compared and analyzed. Since the 5G protocols have not yet been finalized and PA specifications for mMIMO are still under consideration, it is worth investigating novel design methods to further improve their efficiency and linearity performance. Digital predistortion techniques need to evolve to be adapted in mMIMO systems, and some creative linearity enhancement techniques are needed to simultaneously improve the compensation accuracy and reduce the power consumption.

Keywords： Massive multiple input multiple output (mMIMO)     Monolithic microwave integrated circuit (MMIC)     Power amplifier    

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A 17–26.5 GHz 42.5 dBm broadband and highly efficient gallium nitride power amplifier design Correspondences

Ming LI, Zhiqun LI, Quan ZHENG, Lanfeng LIN, Hongqi TAO,liming_2018@seu.edu.cn,zhiqunli@seu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2022, Volume 23, Issue 2,   Pages 346-350 doi: 10.1631/FITEE.2000513

Abstract: A wideband power amplifier is one of the key components in mobile communication systems and radar systems

Keywords： K波段；高效率；宽带；氮化镓（GaN）；功率放大器    

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A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis Research Articles

Yang Gao, Fan Zhang, Yingying Qiao, Jiawei Zang, Lei Li, Xiaobang Shang,gaoyang678@outlook.com,lilei@zzu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 9,   Pages 1260-1269 doi: 10.1631/FITEE.2000292

Abstract: This paper presents a methodology of designing an integrated with a filter using an active . The filter is directly coupled to the active device, and the integrated filter can achieve filtering as well as matching functionalities, simultaneously, eliminating the need for separate matching networks. The filter is represented by an active , with additional columns and rows in the matrix corresponding to the active transistor. The matrix can be used to calculate the S-parameter responses (i.e., the return loss and the gain) and the initial dimensions of the integrated device. Moreover, the integration of a filter and an leads to a reduced loss and a more compact architecture of the devices. An X-band filter has been designed and demonstrated as an example. technology has been chosen because of its appealing advantages of easy fabrication, low cost, and most importantly, easy integration with active devices.

Keywords： 放大器；滤波–放大器集成；微带线；耦合矩阵    

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Analysis and design of transformer-based CMOS ultra-wideband millimeter-wave circuits for wireless applications: a review Review Articles

Yi-ming YU, Kai KANG

Frontiers of Information Technology & Electronic Engineering 2020, Volume 21, Issue 1,   Pages 97-115 doi: 10.1631/FITEE.1900491

Abstract: First, we introduce a mm-Wave low-noise amplifier with transformer-based Gm-boosting and pole-tuning

Keywords： CMOS     Millimeter-wave (mm-Wave)     Ultra-wideband     Transformer     Low-noise amplifier     Injection-locked fre-quency    

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Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense amplifier

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

Frontiers of Information Technology & Electronic Engineering 2015, Volume 16, Issue 8,   Pages 700-706 doi: 10.1631/FITEE.1400439

Abstract: replica bit-line delay (MDRBD) technique is proposed for reducing access time by suppressing the sense-amplifier

Keywords： Process-variation-robust     Sense amplifier (SA)     Replica bit-line (RBL) delay     Timing variation    

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A 9.8–30.1 GHz CMOS low-noise amplifier with a 3.2-dB noise figure using inductor- and transformer-based

Hongchen Chen, Haoshen Zhu, Liang Wu, Wenquan Che, Quan Xue,hongdoublechen@gmail.com,zhuhs@scut.edu.cn,wuliang@cuhk.edu.cn,eewqche@scut.edu.cn,eeqxue@scut.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 4,   Pages 586-598 doi: 10.1631/FITEE.2000510

Abstract: At the architecture level, a topology based on (CG) cascading with a common-source (CS) amplifier is

Keywords： CMOS；跨导提升技术；低噪声放大器；变压器；共栅级    

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Wideband cryogenic amplifier for a superconducting nanowire single-photon detector Research Article

Lianming Li, Long He, Xu Wu, Xiaokang Niu, Chao Wan, Lin Kang, Xiaoqing Jia, Labao Zhang, Qingyuan Zhao, Xuecou Tu,Lianming.LI@seu.edu.cn

Frontiers of Information Technology & Electronic Engineering 2021, Volume 22, Issue 12,   Pages 1551-1684 doi: 10.1631/FITEE.2100525

Abstract: structure, theoretical analysis and simulations were undertaken, highlighting the relationship of the amplifier’s closed-loop stability and suppressing the amplifier overshoot.With good input and output matching, the measurement results showed that the amplifier achieved a 21-At 4.2 K, the gain of the amplifier can be tuned from 15 to 24 dB, achieving a 3-dB bandwidth spanningExcluding the chip pads, the amplifier chip core area was only about 0.073 mm.

Keywords： 超低温放大器；宽带放大器；超导纳米线单光子探测器    

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Title Author Date Type Operation

Experimental Study on the Piezoelectric Prestage Driver of Electrohydraulic Servo Valves

CHENG Guang-ming, SHEN Chuan-liang, YANG Zhi-gang

Journal Article

Robust control of

Xueyan TANG, I-Ming CHEN

Journal Article

A Large Range Flexure-Based Servo System Supporting Precision Additive Manufacturing

Zhen Zhang, Peng Yan, Guangbo Hao

Journal Article

High linearity U-band power amplifier design: a novel intermodulation point analysis method

Jie CUI, Peipei LI, Weixing SHENG,cuijie@njust.edu.cn

Journal Article

A novel method for extending the output power back-off range of an asymmetrical Doherty power amplifier

Mingyu LI, Xiaobing CHENG, Zhijiang DAI, Kang ZHONG, Tianfu CAI, Chaoyi HUANG

Journal Article

Analysis of stiffness and flexural strength of a reinforced concrete beam using an invented reinforcement system

Nazim Abdul NARIMAN, Martin HUSEK, Ilham Ibrahim MOHAMMAD, Kaywan Othman AHMED, Diyako DILSHAD, Ibrahim KHIDR

Journal Article

A modular design kit for task-adaptable low-cost robots based on BaPaMan design

G. BORCHERT, C. L?CHTE, G. CARBONE, A. RAATZ

Journal Article

Electronically enhancing the long-range nanopositioning accuracy of a Lorentz force actuator

Bimal Jeet GOTEEA, Qianjun ZHANG, Wei DONG,bj.goteea@gmail.com,zhang_qj@stu.hit.edu.cn,dongwei@hit.edu.cn

Journal Article

Energy-efficient power amplifiers and linearization techniques for massive MIMO transmitters: a review

Xin LIU, Guan-sheng LV, De-han WANG, Wen-hua CHEN, Fadhel M. GHANNOUCHI

Journal Article

A 17–26.5 GHz 42.5 dBm broadband and highly efficient gallium nitride power amplifier design

Ming LI, Zhiqun LI, Quan ZHENG, Lanfeng LIN, Hongqi TAO,liming_2018@seu.edu.cn,zhiqunli@seu.edu.cn

Journal Article

A microstrip filter direct-coupled amplifier based on active coupling matrix synthesis

Yang Gao, Fan Zhang, Yingying Qiao, Jiawei Zang, Lei Li, Xiaobang Shang,gaoyang678@outlook.com,lilei@zzu.edu.cn

Journal Article

Analysis and design of transformer-based CMOS ultra-wideband millimeter-wave circuits for wireless applications: a review

Yi-ming YU, Kai KANG

Journal Article

Multi-stage dual replica bit-line delay technique for process-variation-robust timing of lowvoltageSRAMsense amplifier

Shou-biao TAN,Wen-juan LU,Chun-yu PENG,Zheng-ping LI,You-wu TAO,Jun-ning CHEN

Journal Article

A 9.8–30.1 GHz CMOS low-noise amplifier with a 3.2-dB noise figure using inductor- and transformer-based

Hongchen Chen, Haoshen Zhu, Liang Wu, Wenquan Che, Quan Xue,hongdoublechen@gmail.com,zhuhs@scut.edu.cn,wuliang@cuhk.edu.cn,eewqche@scut.edu.cn,eeqxue@scut.edu.cn

Journal Article

Wideband cryogenic amplifier for a superconducting nanowire single-photon detector

Lianming Li, Long He, Xu Wu, Xiaokang Niu, Chao Wan, Lin Kang, Xiaoqing Jia, Labao Zhang, Qingyuan Zhao, Xuecou Tu,Lianming.LI@seu.edu.cn

Journal Article