• Publications
  • Influence
Adaptive Digital Feedback Predistortion Technique for Linearizing Power Amplifiers
  • Y. Woo, J. Kim, +4 authors B. Kim
  • Computer Science
  • IEEE Transactions on Microwave Theory and…
  • 7 May 2007
TLDR
We have developed a new adaptive digital predistortion (DPD) linearization technique based on analog feedback predistort (FBPD). Expand
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Analysis of a Fully Matched Saturated Doherty Amplifier With Excellent Efficiency
  • J. Kim, J. Moon, +4 authors B. Kim
  • Engineering
  • IEEE Transactions on Microwave Theory and…
  • 1 February 2008
A saturated Doherty amplifier based on class-F amplifiers is analyzed in terms of its load modulation behavior, efficiency, and linearity. Simulations included the amplitude ratio and phaseExpand
  • 98
  • 3
The elementary symmetric functions of reciprocals of elements of arithmetic progressions
Let a, b and n be positive integers. Erdős and Niven [4] proved that there are only finitely many positive integers n for which one or more of the elementary symmetric functions of 1/b, 1/(a + b), .Expand
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  • PDF
High efficiency hybrid EER transmitter for WCDMA application using optimized power amplifier
TLDR
We have developed a "hybrid" envelope elimination and restoration (EER) transmitter using power amplifier (PA) which is optimized for high efficiency of the EER operation. Expand
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High Efficiency GaN HEMT Power Amplifier optimized for OFDM EER Transmitter
  • S. Hong, Y. Woo, +5 authors B. Kim
  • Materials Science
  • IEEE/MTT-S International Microwave Symposium
  • 3 June 2007
We have proposed a highly efficient power amplifier (PA) for the envelope elimination and restoration (EER) transmitter using gallium nitride (GaN) HEMT. The class AB, B, C and F mode PAs have beenExpand
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Production, optimization and characterization of silver oxide nanoparticles using Artocarpus heterophyllus rind extract and their antifungal activity
For the first time, the phytochemical fabrication of noble silver oxide nanoparticles was reported using Artocarpus heterophyllus rind extract as well as their characterization. The UV-vis absorptionExpand
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  • PDF
Microwave Doherty Power Amplifier for High Efficiency and Linearity
This paper explains the basic circuit configuration of microwave Doherty amplifier and additional design methods for wide bandwidth and high power applications. This paper also presents the recentExpand
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Analog Predistortion High Power Amplifier Using Novel Low Memory Matching Topology
This paper represents an analog predistortion linearizer for the high power amplifier with low memory effect. The high power amplifier is implemented using a 90-W peak envelope power(PEP) LDMOSFET atExpand
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A highly efficient class‐F power amplifier for wideband linear power amplifier applications
In this letter, a highly efficient class-F power amplifier (PA) is developed as a new main block of the wideband base-station linear power amplifier. The class-F PA is implemented using EudynaExpand
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GaN HEMT based Doherty amplifier for 3.5-GHz WiMAX applications
We have implemented a Doherty amplifier for 3.5- GHz world interoperability for microwave access (WiMAX) applications using Eudyna 90-W (P3dB) gallium-nitride (GaN) high electron mobility transistorExpand
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