A CMOS fifth-order 400MHz current-mode LF linear phase filter for hard disk read channels. - Xi Zhu 001; Yichuang Sun; James Moritz (ECCTD, 2007)

A 0.18µm CMOS 300MHz Current-Mode LF Seventh-order Linear Phase Filter for Hard Disk Read Channels. - Xi Zhu 001; Yichuang Sun; James Moritz (ISCAS, 2007)

Design of current-mode gm-C MLF elliptic filters for wireless receivers. - Xi Zhu 001; Yichuang Sun; James Moritz (ICECS, 2008)

A CMOS 80mW 400MHz seventh-order MLF FLF linear phase filter with gain boost. - Xi Zhu 001; Yichuang Sun; James Moritz (ICECS, 2008)

A CMOS 750MHz fifth-order continuous-time linear phase lowpass filter with gain boost. - Xi Zhu 001; Yichuang Sun; James Moritz (ISCAS, 2008)

Oscillation-based DFT for second-order OTA-C filters. - Masood ul-Hasan; Yichuang Sun; Xi Zhu 001; James Moritz (ISCAS, 2008)

Design of high-frequency Gm-C wavelet filters. - Wenshan Zhao; Yichuang Sun; Xi Zhu 001; Yigang He (ECCTD, 2009)

Explicit design formulas for current-mode leap-frog OTA-C filters and 300 MHz CMOS seventh-order linear phase filter. - Yichuang Sun; Xi Zhu 001; James Moritz (Int. J. Circuit Theory Appl., 2010)

Multistandard Analogue Baseband Filters for Software-Defined and Cognitive Radio Receivers. - Yichuang Sun; James Moritz; Xi Zhu 001 (Circuits Syst. Signal Process., 2011)

A folded-switching mixer in SOI CMOS technology. - Ayobami Iji; Xi Zhu 001; Michael Heimlich (MWSCAS, 2012)

A 3-5 GHz LNA in 0.25µm SOI CMOS process for implantable WBANs. - Ayobami Iji; Xi Zhu 001; Michael Heimlich (MWSCAS, 2012)

An OTA-C filter in SOI CMOS for UWB application. - Ayobami Iji; Xi Zhu 001; Michael Heimlich; Yichuang Sun (MWSCAS, 2012)

A low-noise amplifier with continuously-tuned input matching frequency and output resonance frequency. - Xi Zhu 001; Chirn Chye Boon; Ayobami Iji; Yichuang Sun; Michael Heimlich (ISCAS, 2013)

An elliptic filter based on MLF LF structure for wireless receiver. - Xi Zhu 001; Yichuang Sun (MWSCAS, 2013)

Heuristic receiver for implantable UWB applications. - Ayobami Iji; Xi Zhu 001; Michael Heimlich (Microelectron. J., 2014)

A 14-mW PLL-Less Receiver in 0.18-µm CMOS for Chinese Electronic Toll Collection Standard. - Xiaofeng He; Xi Zhu 001; Lian Duan; Yichuang Sun; Chengyan Ma 002 (IEEE Trans. Circuits Syst. II Express Briefs, 2014)

A wideband transformer-coupled frequency quadrupler using an asymmetrical balun in 0.25μm SiGe for backhaul communication. - Sudipta Chakraborty; Xi Zhu 001; Oya Sevimli; Michael Heimlich (ISCAS, 2015)

Cell-Based Variable-Gain Amplifiers With Accurate dB-Linear Characteristic in 0.18 µm CMOS Technology. - Hang Liu 006; Xi Zhu 001; Chirn Chye Boon; Xiaofeng He (IEEE J. Solid State Circuits, 2015)

Miniaturized millimeter-wave on-chip bandpass filter design in 0.13-μm SiGe BiCMOS technology. - Zhang Ju Hou; Quan Xue; Yang Yang 034; Xi Zhu 001; Eryk Dutkiewicz (ISCIT, 2017)

Design of fifth-order LF 0.05° equiripple linear phase lowpass filter with gain boost using nauta transcondutor. - Yichuang Sun; Xi Zhu 001; Meriam Gay Bautista (ISCIT, 2017)

Device-Free Sensing for Personnel Detection in a Foliage Environment. - Yi Zhong 002; Yang Yang 034; Xi Zhu 001; Eryk Dutkiewicz; Zheng Zhou; Ting Jiang (IEEE Geosci. Remote. Sens. Lett., 2017)

Cooperative spectrum sensing based on a modified shuffled frog leaping algorithm in 5G network. - Xunqian Tong; Yanju Ji; Jun Lin 003; Jinbao Zhu; Feng Sun 003; Yi Zhong 002; Yang Yang 034; Xi Zhu 001 (Phys. Commun., 2017)

Internet of Mission-Critical Things: Human and Animal Classification - A Device-Free Sensing Approach. - Yi Zhong 002; Eryk Dutkiewicz; Yang Yang 034; Xi Zhu 001; Zheng Zhou; Ting Jiang (IEEE Internet Things J., 2018)

An Efficient Neural-Network-Based Microseismic Monitoring Platform for Hydraulic Fracture on an Edge Computing Architecture. - Xiaopu Zhang; Jun Lin 003; Zubin Chen; Feng Sun 003; Xi Zhu 001; Gengfa Fang (Sensors, 2018)

A W-Band Balanced Power Amplifier Using Broadside Coupled Strip-Line Coupler in SiGe BiCMOS 0.13-µm Technology. - Zhang Ju Hou; Yang Yang 034; Leung Chiu; Xi Zhu 001; Eryk Dutkiewicz; John C. Vardaxoglou; Quan Xue (IEEE Trans. Circuits Syst. I Regul. Pap., 2018)

Miniaturized Resonator and Bandpass Filter for Silicon-Based Monolithic Microwave and Millimeter-Wave Integrated Circuits. - He Zhu 003; Yang Yang 034; Xi Zhu 001; Yichuang Sun; Sai-Wai Wong (IEEE Trans. Circuits Syst. I Regul. Pap., 2018)

Impact of Seasonal Variations on Foliage Penetration Experiment: A WSN-Based Device-Free Sensing Approach. - Yi Zhong 002; Yang Yang 034; Xi Zhu 001; Yan Huang 023; Eryk Dutkiewicz; Zheng Zhou; Ting Jiang (IEEE Trans. Geosci. Remote. Sens., 2018)

Simplified Over- Temperature Protection Circuit Structure for WSN/IoT Device Power Management. - Jefferson A. Hora; Xi Zhu 001; Eryk Dutkiewicz (ICST, 2019)

On-Chip Inductor-Less Indoor Light Energy Harvester with Improved Efficiency for WSN/IoT Device Design. - Jefferson A. Hora; Meilyssa A. Mayormita; John Raul C. Rebollos; Xi Zhu 001; Eryk Dutkiewicz (ICST, 2019)

Millimeter-Wave BPFs Design using Quasi-Lumped Elements in 0.13-μm (Bi)-CMOS Technology. - Meriam Gay Bautista; He Zhu 003; Xi Zhu 001; Yang Yang 034; Yichuang Sun; Eryk Dutkiewicz; Fan Zhang (ISCAS, 2019)

Design of Ultra-Wideband On-Chip Millimter-Wave Bandpass Filter in 0.13-μm (Bi)-CMOS Technology. - Feng Sun 003; He Zhu 003; Xi Zhu 001; Yang Yang 034; Yichuang Sun; Quan Xue (ISCAS, 2019)

Design of Miniaturized On-Chip Bandpass Filters using Inverting-Coupled Structure for Millimter-Wave Applications. - He Zhu 003; Xi Zhu 001; Yang Yang 034; Yichuang Sun; Viet-Hoang Le; Fan Zhang (ISCAS, 2019)

A Highly Linear OTA with 759 µS gm for RF Transceiver Application. - Jefferson A. Hora; Jim Darell Ang; Xi Zhu 001; Eryk Dutkiewicz (ISCIT, 2019)

An Efficient Seismic Data Acquisition Based on Compressed Sensing Architecture With Generative Adversarial Networks. - Xiaopu Zhang; Shuai Zhang; Jun Lin 003; Feng Sun 003; Xi Zhu 001; Yang Yang 034; Xunqian Tong; Hongyuan Yang (IEEE Access, 2019)

A Portable Microwave Interferometry Sensor for Permittivity Detection Based on CCMRC. - Shichang Chen; Feng Zhou; Kuiwen Xu; Peng Zhao 003; Yang Yang 034; Xi Zhu 001; Gaofeng Wang (IEEE Access, 2020)

Design of a Wideband Variable-Gain Amplifier With Self-Compensated Transistor for Accurate dB-Linear Characteristic in 65 nm CMOS Technology. - Lingshan Kong; Hang Liu 006; Xi Zhu 001; Chirn Chye Boon; Chenyang Li 008; Zhe Liu 038; Kiat Seng Yeo (IEEE Trans. Circuits Syst., 2020)

A Millimeter-Wave Reconfigurable On-Chip Coupler With Tunable Power-Dividing Ratios in 0.13- $ mu$ m BiCMOS Technology. - Yang Yang 034; Zhang Ju Hou; Xi Zhu 001; Wenquan Che; Quan Xue (IEEE Trans. Circuits Syst. I Fundam. Theory Appl., 2020)

Design of Miniaturized On-Chip Bandpass Filters Using Inverting-Coupled Inductors in (Bi)-CMOS Technology. - He Zhu 003; Xi Zhu 001; Yang Yang 034; Yichuang Sun (IEEE Trans. Circuits Syst. I Regul. Pap., 2020)

A Monolithically Integrated Single-Input Load-Modulated Balanced Amplifier With Enhanced Efficiency at Power Back-Off. - Lang Chen; Hang Liu 006; Jefferson A. Hora; J. Andrew Zhang; Kiat Seng Yeo; Xi Zhu 001 (IEEE J. Solid State Circuits, 2021)

A 90-GHz Asymmetrical Single-Pole Double-Throw Switch With >19.5-dBm 1-dB Compression Point in Transmission Mode Using 55-nm Bulk CMOS Technology. - Lisheng Chen; Lang Chen; Zeyu Ge; Yichuang Sun; Tara Julia Hamilton; Xi Zhu 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2021)

Exploiting Parasitic Capacitances in 3-D Inductors to Design RF CMOS Quasi-Elliptic-Type Broad-Band Bandpass Filters. - Xi Zhu 001; Roberto Gómez-García (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

An Edge-Coupled Marchand Balun With Partial Ground for Excellent Balance in 0.13 μm SiGe Technology. - Sudipta Chakraborty; Leigh E. Milner; Xi Zhu 001; Oya Sevimli; Anthony E. Parker; Michael C. Heimlich (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Millimeter-Wave Wide-Band Bandpass Filter in CMOS Technology Using a Two-Layered Highpass-Type Approach With Embedded Upper Stopband. - Zeyu Ge; Lisheng Chen; Roberto Gómez-García; Xi Zhu 001 (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

A 60 GHz 8-Way Combined Power Amplifier in 0.18 μm SiGe BiCMOS. - Hang Liu 006; Xi Zhu 001; Yisheng Wang; Kai Men; Kiat Seng Yeo (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Design of 74% Fractional Bandwidth Continuous-Mode Doherty Power Amplifier Using Compensation Susceptance. - Jia Xing Sun; Feng Lin 005; Xin Yu Zhou 001; Xi Zhu 001 (IEEE Trans. Circuits Syst. II Express Briefs, 2021)

Analysis and Comparison of Marchand and Transformer Baluns Applied in GaAs. - Sudipta Chakraborty; Leigh E. Milner; Xi Zhu 001; Anthony E. Parker; Michael Heimlich (IEEE Trans. Circuits Syst. II Express Briefs, 2022)

83.17% Power Conversion Efficiency, 13.5 dB Power Dynamic Range Rectifier for RF Energy Harvesting Applications in 22nm FDSOI Technology. - Mike Martin C. Diangco; Jefferson A. Hora; Xi Zhu 001 (ISCIT, 2023)

On the Synthesis of Lossy Analog Filter Networks With Lossless-Like Passband Shape. - Roberto Gómez-García; José M. Muñoz-Ferreras; Li Yang 011; Xi Zhu 001 (NEWCAS, 2023)

A 40-GHz Load Modulated Balanced Power Amplifier Using Unequal Power Splitter and Phase Compensation Network in 45-nm SOI CMOS. - Lang Chen; Lisheng Chen; Zeyu Ge; Yichuang Sun; Xi Zhu 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2023)

A Wideband Balanced Amplifier Using Edge-Coupled Quadrature Couplers in 0.13-μm SiGe HBT Technology. - Lisheng Chen; Lang Chen; He Zhu 003; Roberto Gómez-García; Xi Zhu 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2023)

A 88.6%-Efficient Multi-Input Capacitive-Based Energy Combiner with Adaptive Path Control for WSN-IoT Applications. - Trisha Isobelle V. Arboleda; Klenn Louie P. Laure; Mike Martin C. Diangco; Jefferson A. Hora; Xi Zhu 001 (APCCAS, 2024)

Triple-Band RF Energy Harvesting System Using TDM Combiner Drawing 1.5 μW in 22nm FDSOI Technology. - Mike Martin C. Diangco; Jefferson A. Hora; Xi Zhu 001 (APCCAS, 2024)

A Millimeter-Wave Input-Reflectionless Amplifier in 45-nm SOI CMOS Technology. - Jim Darrell Ang; Li Yang 011; Roberto Gómez-García; Xi Zhu 001 (ISCAS, 2024)

High-Order Multilayer Input-Absorptive RF Filter With Wideband Quasi-Flat Group Delay and Multiple Stopband Transmission Zeros. - Li Yang 011; Mohamed Malki; José Maria Muñoz-Ferreras; Xi Zhu 001; Roberto Gómez-García (ISCAS, 2024)

32.1 dB Gain D-Band Line-Based Power Amplifier for 5G-Advanced Applications in 22nm FDSOI Technology. - Jerwin D. Cañeda; Jefferson A. Hora; Xi Zhu 001 (ISCIT, 2024)

Zero Loss Active Rectifier with Op-Amp for Piezoelectric Acoustic Energy Harvesting Applications in 22nm FDSOI Technology. - Grace Melanie Martha J. Ramos; Jefferson A. Hora; Xi Zhu 001 (ISCIT, 2024)

A 146 GHz Low Noise Amplifier with 19.65 dB Gain Using YZ-Embedding Gain Boosting Technique in 22-nm FDSOI Technology. - Johnny R. Tugahan; Jefferson A. Hora; Xi Zhu 001 (ISCIT, 2024)

1 μA Quiescent All-MOS Subthreshold Design Technique of Voltage Reference for Biomedical and IoT Device Applications. - John Michael A. Gorospe; Jefferson A. Hora; Xi Zhu 001 (TENCON, 2024)

A 9.94dBm IIP3 Inductorless Differential Low Noise Amplifier for Geofencing Applications. - Chris Miguel Retorta; Raf Rohan Villacarlos; Gene Fe P. Palencia; Jefferson A. Hora; Xi Zhu 001 (TENCON, 2024)

A 39 GHz Doherty-Like Power Amplifier With 22dBm Output Power and 21% Power-Added Efficiency at 6dB Power Back-Off. - Lang Chen; Lisheng Chen; Depeng Sun; Yichuang Sun; Yulin Pan; Xi Zhu 001 (IEEE J. Emerg. Sel. Topics Circuits Syst., 2024)

Low-Loss and Compact Millimeter-Wave Silicon-Based Filters: Overview, New Developments in Silicon-on-Insulator Technology, and Future Trends. - Robert Nericua; Ke Wang; He Zhu 003; Roberto Gómez-García; Xi Zhu 001 (IEEE J. Emerg. Sel. Topics Circuits Syst., 2024)

Guest Editorial: Integrated Devices, Circuits, and Systems for the 6G Era. - Xi Zhu 001; Roberto Gómez-García; Chun-Hsing Li; Bryan Schwitter (IEEE J. Emerg. Sel. Topics Circuits Syst., 2024)

C-/Ka-Band Aperture-Shared Dual Circularly Polarized Heterogeneous Reflectarray for Vehicular Communications. - Jianfeng Zhu 003; Shaowei Liao; Xi Zhu 001; Yang Yang 034; Quan Xue (IEEE Trans. Veh. Technol., 2024)

Multilayer Reflectionless RF Bandpass Filters With Wideband Quasi-Constant Group-Delay Responses. - Li Yang 011; Mohamed Malki; José Maria Muñoz-Ferreras; Xi Zhu 001; Roberto Gómez-García (IEEE Trans. Circuits Syst. I Regul. Pap., 2024)

ANNs-SaDE: A Machine-Learning-Based Design Automation Framework for Microwave Branch-Line Couplers. - Tianqi Chen; Wei Huang; Qiang Wu; Li Yang 011; Roberto Gómez-García; Xi Zhu 001 (ISCAS, 2025)

Passive-Integrated Two-Port-Quasi-Reflectionless RF Bandpass Filters With Beyond-3-dB-Bandwidth Flat Group Delay. - Nasrin Iranpour; Li Yang 011; Roberto Gómez-García; Xi Zhu 001 (ISCAS, 2025)

Multilayer RF Dual-Band Bandpass Filters With Quasi-Flat Group-Delay Behavior and Multiple Stopband Transmission Zeros. - Zekai Luo; Li Yang 011; Tao Su; Xi Zhu 001; Roberto Gómez-García (ISCAS, 2025)

Design and Analysis of Passive-Integrated Absorptive Flat-Group-Delay RF Bandpass Filters in GaAs Technology for Digital Communications. - Nasrin Iranpour; Li Yang 011; Roberto Gómez-García; Xi Zhu 001 (IEEE Trans. Circuits Syst. I Regul. Pap., 2025)