Keum-Cheol Hwang

According to our database1, Keum-Cheol Hwang authored at least 55 papers between 2010 and 2021.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of four.



In proceedings 
PhD thesis 




Retroreflective Transceiver Array Using a Novel Calibration Method Based on Optimum Phase Searching.
IEEE Trans. Ind. Electron., 2021

A Low-Power 12-Bit 20 MS/s Asynchronously Controlled SAR ADC for WAVE ITS Sensor Based Applications.
Sensors, 2021

A Design of Adaptive Control and Communication Protocol for SWIPT System in 180 nm CMOS Process for Sensor Applications.
Sensors, 2021

2.4 GHz GaN HEMT Class-F Synchronous Rectifier Using an Independent Second Harmonic Tuning Circuit.
Sensors, 2021

Bandwidth-Enhanced Low-Profile Magneto-Electric Dipole Antenna With Shorting Parasitic Elements.
IEEE Access, 2021

Analysis of Received Power in RF Wireless Power Transfer System With Array Antennas.
IEEE Access, 2021

5.8 GHz 4-Channel Beamforming Tx IC for Microwave Power Transfer.
IEEE Access, 2021

Mid-Range Wireless Power Transfer System for Various Types of Multiple Receivers Using Power Customized Resonator.
IEEE Access, 2021

Circularly Polarized Dielectric Resonator Antenna With Two Annular Vias.
IEEE Access, 2021

A Low-Power Multichannel Time-to-Digital Converter Using All-Digital Nested Delay-Locked Loops With 50-ps Resolution and High Throughput for LiDAR Sensors.
IEEE Trans. Instrum. Meas., 2020

Cavity-Backed Patch Filtenna for Harmonic Suppression.
IEEE Access, 2020

A Design of 8 fJ/Conversion-Step 10-bit 8MS/s Low Power Asynchronous SAR ADC for IEEE 802.15.1 IoT Sensor Based Applications.
IEEE Access, 2020

Single-Fed Circularly Polarized Dielectric Resonator Antenna With an Enhanced Axial Ratio Bandwidth and Enhanced Gain.
IEEE Access, 2020

An Efficient Reconfigurable RF-DC Converter With Wide Input Power Range for RF Energy Harvesting.
IEEE Access, 2020

LUT-Based Focal Beamforming System Using 2-D Adaptive Sequential Searching Algorithm for Microwave Power Transfer.
IEEE Access, 2020

A High Performance Adaptive Digital LDO Regulator With Dithering and Dynamic Frequency Scaling for IoT Applications.
IEEE Access, 2020

An Ultra-Low Power, Adaptive All-Digital Frequency-Locked Loop With Gain Estimation and Constant Current DCO.
IEEE Access, 2020

Octave Bandwidth Doherty Power Amplifier Using Multiple Resonance Circuit for the Peaking Amplifier.
IEEE Trans. Circuits Syst. I Regul. Pap., 2019

A Low-Profile High-Gain and Wideband Log-Periodic Meandered Dipole Array Antenna with a Cascaded Multi-Section Artificial Magnetic Conductor Structure.
Sensors, 2019

A Fully Integrated Bluetooth Low-Energy Transceiver with Integrated Single Pole Double Throw and Power Management Unit for IoT Sensors.
Sensors, 2019

5.8 GHz High-Efficiency RF-DC Converter Based on Common-Ground Multiple-Stack Structure.
Sensors, 2019

Design of a 900 MHz Dual-Mode SWIPT for Low-Power IoT Devices.
Sensors, 2019

A design of a 5.6 GHz frequency synthesizer with switched bias LIT VCO and low noise on-chip LDO regulator for 5G applications.
Int. J. Circuit Theory Appl., 2019

High-Efficiency Stacked Power Amplifier IC With 23% Fractional Bandwidth for Average Power Tracking Application.
IEEE Access, 2019

A Design of Fast-Settling, Low-Power 4.19-MHz Real-Time Clock Generator With Temperature Compensation and 15-dB Noise Reduction.
IEEE Trans. Very Large Scale Integr. Syst., 2018

A Highly Linear, AEC-Q100 Compliant Signal Conditioning IC for Automotive Piezo-Resistive Pressure Sensors.
IEEE Trans. Ind. Electron., 2018

A 39.5-dB SNR, 300-Hz Frame-Rate, 56 × 70-Channel Read-Out IC for Electromagnetic Resonance Touch Panels.
IEEE Trans. Ind. Electron., 2018

A 3.9 mW Bluetooth Low-Energy Transmitter Using All-Digital PLL-Based Direct FSK Modulation in 55 nm CMOS.
IEEE Trans. Circuits Syst. I Regul. Pap., 2018

260-µW DCO With Constant Current Over PVT Variations Using FLL and Adjustable LDO.
IEEE Trans. Circuits Syst. II Express Briefs, 2018

Broadband Circularly Polarized Slot Antenna Loaded by a Multiple-Circular-Sector Patch.
Sensors, 2018

A High Noise Immunity, 28 × 16-Channel Finger Touch Sensing IC Using OFDM and Frequency Translation Technique.
Sensors, 2018

A Design of Small Area, 0.95 mW, 612-1152 MHz Open Loop Injection-Locked Frequency Multiplier for IoT Sensor Applications.
Sensors, 2018

A 3-D Meandered Probe-Fed Dual-Band Circularly Polarized Dielectric Resonator Antenna.
Sensors, 2018

Design of a Low-Power, Small-Area AEC-Q100-Compliant SENT Transmitter in Signal Conditioning IC for Automotive Pressure and Temperature Complex Sensors in 180 Nm CMOS Technology.
Sensors, 2018

A 6-bit 4 MS/s 26fJ/conversion-step segmented SAR ADC with reduced switching energy for BLE.
Int. J. Circuit Theory Appl., 2018

Self-Energy Recycling for RF Powered Multi-Antenna Relay Channels.
IEEE Trans. Wirel. Commun., 2017

An Inductive 2-D Position Detection IC With 99.8% Accuracy for Automotive EMR Gear Control System.
IEEE Trans. Very Large Scale Integr. Syst., 2017

Symmetric Three-Way Doherty Power Amplifier for High Efficiency and Linearity.
IEEE Trans. Circuits Syst. II Express Briefs, 2017

Vertical-Strip-Fed Broadband Circularly Polarized Dielectric Resonator Antenna.
Sensors, 2017

A 10-bit 1 MS/s segmented Dual-Sampling SAR ADC with reduced switching energy.
Microelectron. J., 2017

A design of 10-bit, 10 MS/s Pipelined ADC with Time-interleaved SAR.
Microelectron. J., 2017

Low-profile ferrite loaded conical antenna.
Proceedings of the International Conference on Information and Communication Technology Convergence, 2017

CMOS Power Amplifier Integrated Circuit With Dual-Mode Supply Modulator for Mobile Terminals.
IEEE Trans. Circuits Syst. I Regul. Pap., 2016

A Wideband Circularly Polarized Antenna with a Multiple-Circular-Sector Dielectric Resonator.
Sensors, 2016

A Wideband Circularly Polarized Pixelated Dielectric Resonator Antenna.
Sensors, 2016

Performance analysis of DOA estimation in the presence of mutual coupling for UAV.
Proceedings of the IEEE International Conference on Network Infrastructure and Digital Content, 2016

Circuit Design for Wireless Energy Harvesting.
Proceedings of the Wireless-Powered Communication Networks: Architectures, 2016

A Wide-Locking-Range Dual Injection-Locked Frequency Divider With an Automatic Frequency Calibration Loop in 65-nm CMOS.
IEEE Trans. Circuits Syst. II Express Briefs, 2015

Broadband Doherty Power Amplifier Based on Asymmetric Load Matching Networks.
IEEE Trans. Circuits Syst. II Express Briefs, 2015

GA-Enhanced Thin Square Array with Cyclic Difference Sets.
IEICE Trans. Electron., 2013

Uniplanar EBG structure based on a modified Spidron fractal and meander-line configuration.
IEICE Electron. Express, 2013

Ultra-Wideband Folded Monopole Antenna for WiBro/WLAN/WiMAX/UWB Wireless USB Dongles.
IEICE Trans. Commun., 2012

Meandered UC-EBG structure for a reduction of the mutual coupling in a patch antenna array.
IEICE Electron. Express, 2012

Circular hook-shaped wireless USB dongle antenna with an open stub.
IEICE Electron. Express, 2010

Novel hexaband folded meander-patch antenna for wireless USB dongles.
IEICE Electron. Express, 2010