Chul Dong Kim

Efficiency Enhancement of Feedforward Amplifiers by Employing a Negative Group-Delay Circuit

Heungjae Choi, Yongchae Jeong, Chul Dong Kim et al. · IEEE Transactions on Microwave Theory and Techniques · 2010 · 123 citations

Negative Group-delay Circuit, Feedforward Amplifier, Electrical Engineering +5

BANDWIDTH ENHANCEMENT OF AN ANALOG FEEDBACK AMPLIFIER BY EMPLOYING A NEGATIVE GROUP DELAY CIRCUIT

Heungjae Choi, Yongchae Jeong, Chul Dong Kim et al. · Electromagnetic waves · 2010 · 58 citations · Full text

Synthesis of reflection type negative group delay circuit using transmission line resonator

Heungjae Choi, Young-Gyu Kim, Yongchae Jeong et al. · 2009 · 24 citations

Electrical Engineering, Engineering, Design Equation +6

Tunable impedance transformer using a transmission line with variable characteristic impedance

Hyeong Tae Jeong, J. Kim, Ik Soo Chang et al. · IEEE Transactions on Microwave Theory and Techniques · 2005 · 19 citations

Variable Characteristic Impedance, Electrical Engineering, Engineering +6

A compact DGS load-network for highly efficient class-E power amplifier

Heungjae Choi, Sungun Shim, Yongchae Jeong et al. · 2009 · 18 citations

Electrical Engineering, Ground Structure, Engineering +5