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Bumman Kim

Researcher at Pohang University of Science and Technology

Publications -  395
Citations -  10494

Bumman Kim is an academic researcher from Pohang University of Science and Technology. The author has contributed to research in topics: Amplifier & RF power amplifier. The author has an hindex of 54, co-authored 395 publications receiving 9960 citations. Previous affiliations of Bumman Kim include Texas Instruments & Carnegie Mellon University.

Papers
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Proceedings ArticleDOI

Millimeter-wave AlGaAs/InGaAs/GaAs quantum well power MISFET

TL;DR: In this article, double-quantum-well MISFETs with maximum currents of 700 mA/mm for the single-well and 900 mA /mm for double-well devices have been developed for millimeter-wave power transistors.
Proceedings ArticleDOI

Linear CMOS power amplifier at Ka-band with ultra-wide video bandwidth

TL;DR: A deep class-AB topology with 2nd harmonic control circuits is employed, reducing the 3rd order nonlinearity, and an efficient low-drop out (LDO) regulator is proposed to suppress the memory effect generated by the envelope and fundamental nonlinear mixing.
Proceedings ArticleDOI

A New Adaptive Digital Predistortion Technique Employing Feedback Technique

TL;DR: By combining the feedback linearization and digital predistortional linearization techniques, the performance of the predistorter is enhanced significantly compared to the conventional digital PD.
Journal ArticleDOI

Low dissipation power and high linearity PCS power amplifier with adaptive gate bias control circuit

TL;DR: In this article, a new personal communication service (PCS) power amplifier with gate bias control circuit has been developed for high efficiency at low output power level: and for high linearity at high output power levels.
Proceedings ArticleDOI

Highly linear envelope tracking power amplifier with simple correction circuit

TL;DR: In this article, an envelope tracking (ET) power amplifier with a simple correction circuit (SCC) for linear operation is proposed. But the performance of the ET PA is limited by the fact that the SCC is fabricated on chip.