Electrical and Electronic Engineering

Electrical and Electronic Engineering is an open access journal that provides rapid publication of articles in all areas of the subject. The journal welcomes the submission of manuscripts that meet the general criteria of significance and scientific excellence.

Choon Sik Cho

Editorial Board Member of Electrical and Electronic Engineering

Associate Professor, Korea Aerospace University, South Korea

Research Areas

High Frequency Circuit Design

Education

1998Ph.DElectrical and Computer Engineering, University of Colorado at Boulder
1995M.ScElectrical and Computer Engineering, University of South Carolina
1987B.ScControl and Instrumentation Engineering, Seoul National University, Korea

Experience

2010-presentAssociate Professor, School of Electronics, Telecommunication and Computer Engineering, Korea Aerospace University
2004-2010Assistant Professor, School of Electronics, Telecommunication and Computer Engineering, Korea Aerospace University
2001-2004A venture company in NJ, USA, Lead R&D Center for CDMA Cellular Phone Development as the Principal Engineer
1999-2001Pantec & Curitel, Staff Engineer in Developing Cellular Phone
1987-1993LG Electronics, Senior Engineer in Developing Communication Systems

Publications: Journals

[1]  Dong-Yeon Kim, Jae W. Lee, T. K. Lee, and Choon Sik Cho, "Design of SIW Cavity-Backed Circular-Polarized Antennas Using Two Different Feeding Transitions," IEEE Transactions on Antennas and Propagation, Vol. 59, No. 4, pp. 1398-1403, Apr. 2011.
[2]  Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, Haeng S. Lee and Yeon-Choon Chung, "Indirect evaluation of radiated emissions from a bent signal line on a printed circuit board with two attached cables," Microwave and Optical Technology Letters, Vol. 53, No.8, pp. 1832-1837, Aug. 2011.
[3]  Choon Sik Cho and Jae W. Lee, "Linearity Enhanced Doherty Power Amplifier Using Analog Predistortion," Microwave and Optical Technology Letters, Vol. 53, No.2, pp. 403-404, Feb. 2011.
[4]  Eun-young Jung, Jae W. Lee, and Choon Sik Cho, "Signal Distortion Analysis of L-Shaped UWB Antenna," IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 9, pp. 775-778, 2010.
[5]  Woosung Lee, Jaeheung Kim, Choon Sik Cho, and Young Joong Yoon, "Beamforming Lens Antenna on a High Resistivity Silicon Wafer for 60 GHz WPAN," IEEE Transactions on Antennas and Propagation, Vol. 58, No. 3, pp. 706-713, Mar. 2010.
[6]  Seung Yoon Yang, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A novel dual-band balun using branch-lines with open stubs," Microwave and Optical Technology Letters, Vol. 52, No. 3, pp. 642-644, Mar. 2010.
[7]  Hyo Rim Bae, Soon Won So, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "A Crooked U-Slot Dual-Band Antenna With Radial Stub Feeding," IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 8, pp. 1345-1348, 2009.
[8]  Sung-hwan Ahn, Jae W. Lee, Choon Sik Cho and Taek. K. Lee, "A Dual-Band Unequal Wilkinson Power Divider With Arbitrary Frequency Ratios," IEEE Microwave and Wireless Components Letters, Vol.19, No.12, p. 783-784, Dec. 2009.
[9]  D. Kim, Jae W. Lee, Choon Sik Cho and Taek. K. Lee, "X-band circular ring-slot antenna embedded in single-layered SIW for circular polarisation," IEE Electronics Letters, Vol. 45, No. 13, pp. 668-669, June 2009.
[10]  K. K. Kang, Jae W. Lee, Choon Sik Cho and Taek. K. Lee, "Compact Six-Band Internal Antenna with Stacked Periodic-Grooved Planes," Microwave and Optical Technology Letters, Vol. 50, No. 10, pp. 2718-2722, Oct. 2008.
[11]  Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Comments on "The Design of Coupled Resonator Bandpass Filter with Wide Stop-Band"," IEEE Microwave and Wireless Components Letters, Vol.18, No.9, p. 650, Sept. 2008.
[12]  Seung Hun Ji, Sang Ki Eun, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Linearity Improved Doherty Power Amplifier Using Composite Right/Left-Handed Transmission Lines," IEEE Microwave and Wireless Components Letters, Vol.18, No.8, pp. 533-535, Aug. 2008.
[13]  Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, "Design of a Compact Tri-Band PIFA Based on Independent Control of the Resonant Frequencies," IEEE Transactions on Antennas and Propagation, vol. 56, no. 5, pp. 1428-1436, May 2008.
[14]  Jaehyung Kim, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Linearity improvement of class-E Doherty amplifier using gm3 cancellation," IEE Electronics Letters, Vol. 44, No. 5, pp. 359-360, Feb. 2008.
[15]  Kyung K. Kang, Jae W. Lee, Choon Sik Cho and Taek K. Lee, "An Improved Bandwidth of Modified UWB Antenna with Staircased Parasitic Rings," IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 6, pp. 521-524, 2007.
[16]  Seung Hun Ji, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Concurrent Dual-Band Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines," IEEE Transactions on Microwave Theory and Techniques , Vol.55, No. 6, pp. 1341-1347, Jun. 2007.
[17]  Jun-Sik Choi, Kyung K. Kang, Jae W. Lee, Choon Sik Cho, and Jaeheung Kim "A Performance Investigation of an Internal Quad-Band Antenna With Double-Spiral Structures," IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, Vol. 5, pp. 552-555, 2006.
[18]  Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Dual-and Triple-Mode Branch-Line Ring Resonators and Harmonic Suppressed Half-Ring Resonators," IEEE Transactions on Microwave Theory and Techniques , Vol.54, No. 11, pp. 3968-3974 , Nov. 2006.
[19]  Mi Jung Kim, Choon Sik Cho, Jaeheung Kim, "A Novel CPW-Fed Wideband Antenna Using Ring Growth Configuration," International Journal of Microwave and Optical Technology, Vol.1, No.2, pp. 840-844, Aug. 2006.
[20]  Jaeheung Kim, Choon Sik Cho and Jae W. Lee, "5.2GHz Notched Ultra Wideband Antenna Using a Slot-Type SRR," IEE Electronics Letters, Vol. 42, No. 6, pp. 315-316, Mar. 2006.
[21]  Mi Jung Kim, Choon Sik Cho, Jaeheung Kim, "A Dual Band Printed Dipole Antenna with Spiral Structure for WLAN Application," IEEE Microwave and Wireless Components Letters, Vol.15, No.12, pp. 910-912, Dec. 2005.
[22]  Jaeheung Kim, Choon Sik Cho and Jae W. Lee, "CPW Band Stop Filter Using Slot-Type SRRs," IEE Electronics Letters, Vol. 41, No. 24, pp. 1333-1334, Nov. 2005.
[23]  Jaeheung Kim, Choon-Sik Cho and Frank S. Barnes, "Dielectric Slab Rotman Lens for Micro/Millimeter-wave Applications," IEEE Transaction on Microwave Theory and Techniques, Vol.53, No. 8, pp.2622-2627, Aug. 2005.
[24]  Jae W. Lee, Choon Sik Cho and Jaeheung Kim, "A New Vertical Half Disc-Loaded Ultra-Wideband Monopole Antenna (VHDMA) with a Horizontally Top-Loaded Small Disc," IEEE Antennas and Wireless Propagation Letters, Vol.4, pp.198-201, 2005.
[25]  Jaeheung Kim, Choon-Sik Cho and Frank S. Barnes, "Dielectric Slab Rotman Lens at Micro/Millimeter-wave Frequency," IEEE Microwave and Wireless Components Letters, Vol.15, No.5, pp.348-350, May 2005.

Publications: Conferences/Workshops/Symposiums

[1]  Hyo Rim Bae, Choon Sik Cho, and Jae W. Lee, "Efficiency Enhanced Class-E Power Amplifier Using the Second Harmonic Injection at the Feedback Loop," IEEE European Microwave Conference, pp. 1042-1045, Sept. 2010.
[2]  Seung Yoon Yang, Choon Sik Cho and Jae W. Lee, "Sub-THz Printed Log-Periodic Dipole Array Antenna for Enhanced Bandwidth and High Gain," IEEE European Microwave Conference, pp. 1349-1352, Sept. 2010.
[3]  Hyo Rim Bae, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A 24GHz Dual-Gate Mixer Using Sub-Harmonic in 0.18μm CMOS Technology," IEEE Asia Pacific Microwave Conference, Dec. 2009.
[4]  Ji Hoon Jeong, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Novel K-Band Self-Oscillating Mixer Based on Push-Push Topology," IEEE Asia Pacific Microwave Conference, Dec. 2009.
[5]  Sun Young Kim, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "A Novel Feedback Low Phase Noise Ka-band Push-Push CMOS VCO," IEEE Asia Pacific Microwave Conference, Dec. 2009.
[6]  Sang-Ki Eun, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Low Power VCO Using Active Inductor for Low Phase Noise and Wide Tuning Range," IEEE European Microwave Conference, pp. 125-128, Sept. 2009.
[7]  Tae Yoon Seo, Jae W. Lee, Choon Sik Cho, and Taek K. Lee "An Embedded Filtering Antenna Using Multiple Layers with Dielectric Lens," IEEE European Microwave Conference, pp. 751-754, Sept. 2009.
[8]  Tak Su Moon, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Novel Millimeter Wave Super Lens Using Split-Ring Resonator and Complementary Split-Ring Resonator," Proceedings of IRMMW-THz, Sept. 2009.
[9]  Seung Yoon Yang, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "Design of Sub-THz Log-Periodic Antenna for High Input Impedance," Proceedings of IRMMW-THz, Sept. 2009.
[10]  Soon One So, Sang-Ki Eun , Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Dumbbell U-Slot Wide Band Antenna Using Radial Stub Feeding for Millimeter-Wave Application," Proceedings of IRMMW-THz, Sept. 2009.
[11]  Cheong Won Ryu, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Low Power 45dB Dynamic-Range Variable Gain Mixer in 0.18μm CMOS," IEEE International Microwave Symposium, pp. 585-588, June 2009.
[12]  Woosung Lee, Jaeheung Kim, Choon Sik Cho, and Young Joong Yoon, "A 60 GHz Rotman Lens on a Silicon Wafer for System-on-a-Chip and System-in-Package Applications," IEEE International Microwave Symposium, pp. 1189-1192, June 2009.
[13]  Sun Young Kim, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "A Novel Feedback Phase Noise CMOS Voltage Controlled Oscillator," Korea-Japan Microwave Conference, pp. 45-48, Apr. 2009.
[14]  Jin-Gul Lee , Choon Sik Cho , Jae W. Lee, Sang-Ki Eun, "A Novel Dual-Band Wilkinson Power Divider Using Branch-line," IEEE Asia Pacific Microwave Conference, Dec. 2008.
[15]  Tak Su Moon, Choon Sik Cho, Jae W. Lee, and Young Ho Jung, "Adaptive Digital Predistortion for The Power Amplifiers Based on Look-up Table with Tanh as a Nonlinear Indexing Function," IEEE Asia Pacific Microwave Conference, Dec. 2008.
[16]  Daehan Kim, Choon Sik Cho, Jae W. Lee, Jaeheung Kim, "A Dual Band Radial Stub Antenna with Tapered Radial Slot on Backside," IEEE Asia Pacific Microwave Conference, Dec. 2008.
[17]  Cheong Won Ryu, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "A Triple-Folded Frequency Push-Push Oscillator Using DGS Resonator and Composite Right/Left-Handed Transmission Lines," IEEE Asia Pacific Microwave Conference, Dec. 2008.
[18]  Dong-yeon Kim, Jae W. Lee, Choon Sik Cho, and Yeon-Choon Chung, "Alternative Investigation of Common-Mode Radiated Emission from PCB with a Bent Signal Line and Attached Cables," IEEE Asia Pacific Microwave Conference, Dec. 2008.
[19]  Sang-Ki Eun, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "Linearity Enhancement for the RF Class-E Power Amplifiers Using Duty-Cycle Modulation at the Feed-Forward Path," IEEE European Microwave Conference, pp. 1675-1678, Oct. 2008.
[20]  Kyu Seok Hwang,Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "High Quality-Factor and Inductance of Symmetric Differential-Pair Structure Active Inductor Using a Feedback Resistance Design," IEEE International Microwave Symposium, pp.1059-1062, June 2008.
[21]  Sung-Hwan Ahn, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, "A Wilkinson Power Divider with Different Power Ratios at Different Frequencies," IEEE Asia Pacific Microwave Conference, pp. 781-784, Dec. 2007.
[22]  Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, "Time-Domain Signal Investigations of Notched VHDMA for UWB Communications," IEEE Asia Pacific Microwave Conference, pp. 1201-1204, Dec. 2007.
[23]  Jinse Jung, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "An Ultra Wide Band pHEMT Low Noise Amplifier With Darlington Stage," International SOC Conference, pp. 568-570, Nov. 2007.
[24]  Sang-Ki Eun, Seung Hun Ji, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "A High Linearity Chireix Outphasing Power Amplifier Using Composite Right/Left-Handed Transmission Lines," IEEE European Microwave Conference, pp. 1622-1625, Oct. 2007.
[25]  Cheong Won Ryu, Choon Sik Cho, Jae W. Lee, and Jaeheung Kim, "New Balanced Self Oscillating Mixer Using DGS Resonator," IEEE European Microwave Conference, pp. 648-651, Oct. 2007.
[26]  Woon-Gi Yeo, Tae-Yoon Seo, Jae W. Lee, and Choon Sik Cho, "H-Plane Sectoral Filtering Horn Antenna in PCB Substrates Using Via Fences at Millimetre-Wave," IEEE European Microwave Conference, pp. 818-821, Oct. 2007.
[27]  Dong-Yeon Kim, Jae W. Lee, Choon Sik Cho, and Jaeheung Kim, "A Compact Tri-Band PIFA with Multiple-Folded Parasitic Elements," IEEE International Microwave Symposium, pp.259-262, June 2007.
[28]  J. W. Lee, K. K. Kang, C.S. Cho, and J. Kim, "An Enhancement of Input Impedance Bandwidth of Circular-Disc Loaded Monopole Antenna with Horizontal and Vertical Parasitic Strips," IEEE Asia Pacific Microwave Conference, Dec. 2006.
[29]  Jinse Jung, Duk-Jae Woo, Choon Sik Cho and Taek-Kyung Lee, "Power Enhancement of Microwave Oscillator Using a High-Q Spiral-Shaped DGS Resonator," IEEE Asia Pacific Microwave Conference, Dec. 2006.
[30]  Sung Hwan Ahn, Jae W. Lee, Taek K. Lee and Choon Sik Cho, "Even-Odd Mode Analysis of Unequal Dual-Band Wilkinson Power Divider," Korea-Japan Joint Conference on AP/EMC/EMT, pp. 305-308, Sept. 2006.
[31]  Mi Jung Kim, Choon Sik Cho and Jaeheung Kim, "Miniaturized Antenna Using a Planar Mobius Strip Bisected Along the Circumferential Direction," IEEE European Microwave Conference, pp. 827-830, Sept. 2006.
[32]  Seung Hoon Ji, Gyu Seok Hwang, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "836 MHz/1.95GHz Dual-Band Class-E Power Amplifier Using Composite Right/Left-Handed Transmission Lines," IEEE European Microwave Conference, pp. 356-359, Sept. 2006.
[33]  Jinse Jung, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Low Phase Noise Microwave Oscillator Using Split Ring Resonators," IEEE European Microwave Conference, pp. 95-98, Sept. 2006.
[34]  Kyoung G. Kang, Jae W. Lee, Choon Sik Cho, and Taek K. Lee, "A Dual-Band Planar Inverted-F Antenna with Periodic Grooves," IEEE European Microwave Conference, pp. 1465-1468, Sept. 2006.
[35]  Pil Sung Park, Jae W. Lee, Taek K. Lee, Choon Sik Cho and Jaeheung Kim, "Reduction of Radiated Emission from Signal Traces Using Modified Small-Sized Ground Patterns," IEEE Proceedings of International Symposium on Electromagnetic Compatibility, pp. 368-371, July 2006.
[36]  Mi Jumg Kim, Choon Sik Cho and Jaeheung Kim, "Miniaturized Resonator Using a Planar Möbius Strip Bisected Along the Circumferential Direction," IEEE International Microwave Symposium, pp. 1385-1388, June 2006.
[37]  Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "Double Half-Ring Resonatorsfor Bandpass Filter Applications with Suppression of Multiple Harmonics and Size Reduction," IEEE Asia Pacific Microwave Conference, Dec. 2005.
[38]  Jae W. Lee, Choon Sik Cho and Taek K. Lee, "A New Vertically Half Disc-Loaded UWB Filtering Antenna with Horizontally Top-Loaded Small Disc," ISAP, Aug. 2005.
[39]  Tae Hwan Kim, Choon Sik Cho and Jae W. Lee, "Inset CPW-Fed UWB Antenna," ISAP, Aug. 2005.
[40]  Mi-Jung Kim, Choon Sik Cho and Jaeheung Kim, "A Novel CPW-Fed Wideband Antenna Using Ring Growth Configuration," ISMOT, Aug., 2005.
[41]  Jung Woo Ha, Choon Sik Cho, Jae W. Lee and Jaeheung Kim, "A Ku-Band Class-E High Efficiency Frequency Tripler," ISMOT, Aug. 2005.
[42]  Tae Hwan Kim, Jae W. Lee, and Choon Sik Cho, "A CPW-Fed Self-affine Fractal Antenna," IEEE AP-S International Symposium, July 2005.
[43]  Jung Woo Ha, Choon Sik Cho, and Jae W. Lee, "A Triple-Band Antenna using CPW-Fed and Meander-line for PCS/IMT-2000/Bluetooth Applications," IEEE AP-S International Symposium, July 2005.