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Prof. Keum Cheol Hwang
Prof. Keum Cheol Hwang
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Title
Cited by
Cited by
Year
Triple-band unidirectional circularly polarized hexagonal slot antenna with multiple L-shaped slits
JG Baek, KC Hwang
IEEE Transactions on Antennas and Propagation 61 (9), 4831-4835, 2013
972013
A design of a 92.4% efficiency triple mode control DC–DC buck converter with low power retention mode and adaptive zero current detector for IoT/wearable applications
YJ Park, JH Park, HJ Kim, H Ryu, SY Kim, YG Pu, KC Hwang, Y Yang, ...
IEEE Transactions on Power Electronics 32 (9), 6946-6960, 2016
862016
A design of a wireless power receiving unit with a high-efficiency 6.78-MHz active rectifier using shared DLLs for magnetic-resonant A4 WP applications
HG Park, JH Jang, HJ Kim, YJ Park, SJ Oh, YG Pu, KC Hwang, Y Yang, ...
IEEE Transactions on Power Electronics 31 (6), 4484-4498, 2015
792015
Octave bandwidth Doherty power amplifier using multiple resonance circuit for the peaking amplifier
H Kang, H Lee, W Lee, H Oh, W Lim, H Koo, C Park, KC Hwang, KY Lee, ...
IEEE Transactions on Circuits and Systems I: Regular Papers 66 (2), 583-593, 2018
772018
Design of a high efficiency DC–DC buck converter with two-step digital PWM and low power self-tracking zero current detector for IoT applications
SY Kim, YJ Park, I Ali, TTK Nga, HC Ryu, ZHN Khan, SM Park, YG Pu, ...
IEEE Transactions on Power Electronics 33 (2), 1428-1439, 2017
772017
Circularly polarized Spidron fractal dielectric resonator antenna
A Altaf, Y Yang, KY Lee, KC Hwang
IEEE Antennas and Wireless Propagation Letters 14, 1806-1809, 2015
742015
A Sidelobe-Reduced, Four-Beam Array Antenna Fed by a Modified Butler Matrix for 5G Applications
S Trinh-Van, JM Lee, Y Yang, KY Lee, KC Hwang
IEEE Transactions on Antennas and Propagation 67 (7), 4528-4536, 2019
712019
Design and optimization of a broadband waveguide magic-T using a stepped conducting cone
KC Hwang
IEEE Microwave and Wireless Components Letters 19 (9), 539-541, 2009
612009
An efficient reconfigurable RF-DC converter with wide input power range for RF energy harvesting
D Khan, SJ Oh, K Shehzad, M Basim, D Verma, YG Pu, M Lee, KC Hwang, ...
IEEE Access 8, 79310-79318, 2020
602020
Circularly polarized semi-eccentric annular dielectric resonator antenna for X-band applications
JM Lee, SJ Kim, G Kwon, CM Song, Y Yang, KY Lee, KC Hwang
IEEE Antennas and Wireless Propagation Letters 14, 1810-1813, 2015
572015
CMOS power amplifier integrated circuit with dual-mode supply modulator for mobile terminals
J Ham, J Bae, H Kim, M Seo, H Lee, KC Hwang, KY Lee, C Park, D Heo, ...
IEEE Transactions on Circuits and Systems I: Regular Papers 63 (1), 157-167, 2016
562016
Broadband Doherty Power Amplifier Based on an Asymmetric Load Matching Networks
J Kwon, M Seo, H Lee, J Gu, J Ham, KC Hwang, KY Lee, C Park, Y Yang
IEEE, 0
55*
Doherty power amplifier based on the fundamental current ratio for asymmetric cells
H Oh, H Kang, H Lee, H Koo, M Kim, W Lee, W Lim, CS Park, KC Hwang, ...
IEEE Transactions on Microwave Theory and Techniques 65 (11), 4190-4197, 2017
542017
Optimization of a shared-aperture dual-band transmitting/receiving array antenna for radar applications
G Kwon, JY Park, DH Kim, KC Hwang
IEEE Transactions on Antennas and Propagation 65 (12), 7038-7051, 2017
532017
Compact loop-coupled spiral antenna for multiband wireless USB dongles
SJ Jeong, KC Hwang
Electronics letters 46 (6), 388-390, 2010
492010
Symmetric three-way Doherty power amplifier for high efficiency and linearity
H Kang, H Lee, H Oh, W Lee, CS Park, KC Hwang, KY Lee, Y Yang
IEEE Transactions on Circuits and Systems II: Express Briefs 64 (8), 862-866, 2016
482016
Broadband circularly-polarised Spidron fractal slot antenna
KC Hwang
Electronics letters 45 (1), 3-4, 2009
472009
A-20 to 30 dBm input power range wireless power system with a MPPT-based reconfigurable 48% efficient RF energy harvester and 82% efficient A4WP wireless power receiver with …
SY Kim, H Abbasizadeh, BS Rikan, SJ Oh, BG Jang, YJ Park, D Khan, ...
IEEE Transactions on Power Electronics 34 (7), 6803-6817, 2018
462018
Dual‐band circularly‐polarised Spidron fractal microstrip patch antenna for Ku‐band satellite communication applications
T Nguyen Thi, KC Hwang, HB Kim
Electronics letters 49 (7), 444-445, 2013
432013
A CMOS RF energy harvester with 47% peak efficiency using internal threshold voltage compensation
D Khan, SJ Oh, K Shehzad, D Verma, ZHN Khan, YG Pu, M Lee, ...
IEEE Microwave and Wireless Components Letters 29 (6), 415-417, 2019
402019
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