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					H. J. Lim, H. -B. Park and K. C. Hwang | 
					A Low-Scattering Pixelated Dielectric Rod Waveguide Probe for Near-Field Measurement | 
					IEEE Transactions on Antennas and Propagation | 
					vol. 69, no. 12, pp. 8920 | 
					2021-12 | 
					SCIE(IF:4.824) | 
					AADL | 
				
								
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					H. Oh, J. Shin, W. Choi, Y. Chen, H. Jeon, Y. C. Choi, H. Koo, K. C. Hwang, K. -Y. Lee and Y. Yang | 
					Dual-mode Supply Modulator IC With an Adaptive Quiescent Current Controller for Its Linear Amplified in LTE Mobile Power Amplifier | 
					IEEE Access | 
					vol. 9, pp. 1447768 | 
					2021-11 | 
					SCIE(IF:3.476) | 
					AADL,MCS,IC lab | 
				
								
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					M. R. Ur. Rehman, A. Hejazi, I. Ali, M. Asif, S. Oh, P. Kumar, Y. Pu, S. -S. Yoo, K. C. Hwang, Y. Ya… | 
					An Ultra-Low Power 2.4 GHz All-Digital Phase-Locked Loop with injection-Locked Frequency Multiplier and Continous Frequency Tracking | 
					IEEE Access | 
					vol. 9, pp. 152 984 | 
					2021-10 | 
					SCIE(IF:3.476) | 
					AADL,MCS,IC lab | 
				
								
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					D. Khan, S. -J. Oh, S. Yeo, Y. Ryu, S. -H. In, R. E. Rad, I. Ali, Y. -G. Pu, S. -S. Yoo, M. Lee, K. … | 
					A High-Efficient Wireless Power Receiver for Hybrid Energy-Harvesting Sources | 
					IEEE Transactions on Power Electronics | 
					vol. 36, no. 10, pp. 11148 | 
					2021-10 | 
					SCIE(IF:5.967) | 
					AADL,MCS,IC lab | 
				
								
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					H. J. Lim, D. H. Lee, H. B. Park and K. C. Hwang | 
					Near-Field-Based 5G sub-6 GHz Array Antenna? Diagno sis Using Transfer Learning | 
					Appl. Sci | 
					vol. 11, no. 21, pp. 10164 | 
					2021-10 | 
					SCIE(IF:2.838) | 
					AADL | 
				
								
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					D. Khan, S. J. Oh, S. Yeo, Y. Ryu, S. In, R. E. Rad, I. Ali, Y. G. Pu, S. -S. Yoo, M. Lee,?K. C. Hwa… | 
					A Solar/Triboelectric/RF Hybrid Energy Harvesting based High Efficiency Wireless Power Receiver | 
					IEEE Transactions on Power Electronics | 
					vol. 36, no. 8, pp. 11148 | 
					2021-10 | 
					SCIE(IF:5.967) | 
					AADL,MCS,IC lab | 
				
								
										| 77 | 
					D. Verma, B. S. Rikan, K. Shehzad, S. J. Kim, D. Khan, V. Kommangunta, S. A. A. Shah, Y. G. Pu, S. -… | 
					A Design of 44.1 fJ/Conv-Step 12-Bit 80 ms/s Time interleaved Hybrid Type SAR ADC With Redundancy Capacitor and On-Chip Time-Skew Calibration | 
					IEEE Access | 
					vol. 9. pp. 133143 | 
					2021-09 | 
					SCIE(IF:3.476) | 
					AADL,MCS,IC lab | 
				
								
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					A. Hejazi, B. G. Jang, R. E. Rad, J. W. Jo, B. S. Rikan, Y. G. Pu, S. -S. Yoo, K. C. Hwang, Y. Yang … | 
					A 2.4 GHz Power Receiver Embedded With a Low-Power Transmitter and PCE of 53.8%, for Wireless Charging of IoT/Wearable Devices | 
					IEEE Transactions on Microwave Theory and Techniques | 
					vol. 69, no. 9, pp. 4315 | 
					2021-09 | 
					SCIE(IF:4.381) | 
					AADL,MCS,IC lab | 
				
								
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					R. E. Rad, A. Hejazi, S. -A. H.Asi, K. Shehzad, D. Verma, S. J. Kim, B. S. Rikan, Y. G. Pu, J. T. Ki… | 
					A 77-dB Dynamic-Range Analog Front-End for Fine-Dust Detection Systems with Dual-Mode Ultra-Low Noise TIA† | 
					Sensors | 
					vol. 21, no. 19, pp. 6360 | 
					2021-09 | 
					SCIE(IF:3.847) | 
					AADL,MCS,IC lab | 
				
								
										| 74 | 
					M. Elahi, S. Trihn-Van, Y. Yang, K. -Y. Lee and K. C. Hwang | 
					Compact and High Gain 4?× 4 Circularly Polarized Microstrip Patch Antenna Array for Next Generation Small Satellite | 
					Appl. Sci | 
					vol. 11, no. 19, pp. 8869 | 
					2021-09 | 
					SCIE(IF:2.838) | 
					AADL,MCS,IC lab |