A fully matched N-way Doherty amplifier with optimized linearity
Yang, Youngoo, Cha, Jeonghyeon, Shin, Bumjae, Kim, Bumman
Published in IEEE transactions on microwave theory and techniques (01.03.2003)
Published in IEEE transactions on microwave theory and techniques (01.03.2003)
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Journal Article
Highly linear three-way Doherty amplifier with uneven power drive for repeater system
Ildu Kim, Jeonghyeon Cha, Hong, S., Jangheon Kim, Young Yun Woo, Cheon Seok Park, Bumman Kim
Published in IEEE microwave and wireless components letters (01.04.2006)
Published in IEEE microwave and wireless components letters (01.04.2006)
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Journal Article
Optimum design of a predistortion RF power amplifier for multicarrier WCDMA applications
Jeonghyeon Cha, Jaehyok Yi, Kim, J., Bumman Kim
Published in IEEE transactions on microwave theory and techniques (01.02.2004)
Published in IEEE transactions on microwave theory and techniques (01.02.2004)
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Journal Article
Weighted Polynomial Digital Predistortion for Low Memory Effect Doherty Power Amplifier
Hong, S., Young Yun Woo, Kim, J., Jeonghyeon Cha, Ildu Kim, Junghwan Moon, Jaehyok Yi, Bumman Kim
Published in IEEE transactions on microwave theory and techniques (01.05.2007)
Published in IEEE transactions on microwave theory and techniques (01.05.2007)
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Journal Article
New linearization method for the modulated signals with high peak-to-average ratio: peak-to-average ratio reduction and expansion
Yang, Youngoo, Woo, Young Yun, Cha, Jeonghyeon, Yi, Jaehyok, Kim, Bumman
Published in 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278) (2002)
Published in 2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278) (2002)
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Conference Proceeding
Journal Article
Microwave Doherty Power Amplifier for High Efficiency and Linearity
Bumman Kim, Jangheon Kim, Ildu Kim, Jeonghyeon Cha, Sungchul Hong
Published in 2006 International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits (01.01.2006)
Published in 2006 International Workshop on Integrated Nonlinear Microwave and Millimeter-Wave Circuits (01.01.2006)
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Conference Proceeding
Predistortion Power Amplifier for Base-Station using a Feedforward Loop Linearizer
Ildu Kim, Jeonghyeon Cha, Sungchul Hong, Young Yun Woo, Jangheon Kim, Bumman Kim
Published in 2006 European Microwave Conference (01.09.2006)
Published in 2006 European Microwave Conference (01.09.2006)
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Conference Proceeding
A new adaptive feedforward amplifier using imperfect signal cancellation
Bumman Kim, Young Yun Woo, Youngoo Yang, Jaehyok Yi, Joonjin Nam, Jeonghyeon Cha
Published in 2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002 (2002)
Published in 2002 3rd International Conference on Microwave and Millimeter Wave Technology, 2002. Proceedings. ICMMT 2002 (2002)
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Conference Proceeding
Highly efficient envelope tracking transmitter by utilizing sinking current
Jungjoon Kim, Junghwan Moon, Junghwan Son, Seunghoon Jee, Juyeon Lee, Jeonghyeon Cha, Ildu Kim, Bumman Kim
Published in 2011 41st European Microwave Conference (01.10.2011)
Published in 2011 41st European Microwave Conference (01.10.2011)
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Conference Proceeding
Highly efficient envelope tracking transmitter by utilizing sinking current
Jungjoon Kim, Junghwan Moon, Junghwan Son, Seunghoon Jee, Juyeon Lee, Jeonghyeon Cha, Ildu Kim, Bumman Kim
Published in 2011 6th European Microwave Integrated Circuit Conference (01.10.2011)
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Published in 2011 6th European Microwave Integrated Circuit Conference (01.10.2011)
Conference Proceeding