Home » Authors » JIN-KUK LEE, SU-TAE KIM AND YONG-CHAE JEONG Chonbuk National University, JONG-SIK LIM Soonchunhyang University, Asan, Korea, CHUL-DONG KIM, Sewon Tele

JIN-KUK LEE, SU-TAE KIM AND YONG-CHAE JEONG Chonbuk National University, JONG-SIK LIM Soonchunhyang University, Asan, Korea, CHUL-DONG KIM, Sewon Tele

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Design of an Amplifier Using a Harmonic Termination Matching Tuner and Harmonic Blocking Bias Line

In this article, a new 3 dB branch line hybrid, using an asymmetric defected ground structure (DGS) microstrip, is proposed. The proposed branch line coupler suppresses the second and third harmonic components effectively. If transmission lines having ...

April 4, 2006

JIN-KUK LEE, SU-TAE KIM AND YONG-CHAE JEONG Chonbuk National University, JONG-SIK LIM Soonchunhyang University, Asan, Korea, CHUL-DONG KIM, Sewon Tele

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Harmonic load-pull systems have gained importance recently, because such setups allow the appropriate harmonic terminations for a transistor to be determined in order to obtain high efficiency and high linearity. Harmonic load-pull can also make the verification of transistor models possible. However, the active load-pull systems that are presently...