C
Chin Hsia
Researcher at University of California, San Diego
Publications - 22
Citations - 1312
Chin Hsia is an academic researcher from University of California, San Diego. The author has contributed to research in topics: Amplifier & RF power amplifier. The author has an hindex of 15, co-authored 20 publications receiving 1261 citations.
Papers
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Journal ArticleDOI
High-Efficiency Envelope-Tracking W-CDMA Base-Station Amplifier Using GaN HFETs
Donald F. Kimball,Jinho Jeong,Chin Hsia,Paul Draxler,Sandro Lanfranco,W. Nagy,K. Linthicum,Lawrence E. Larson,Peter M. Asbeck +8 more
TL;DR: In this paper, a high-efficiency wideband code-division multiple access (W-CDMA) base station amplifier is presented using high-performance GaN heterostructure field effect transistors to achieve high gain and efficiency with good linearity.
Journal ArticleDOI
Digital Predistortion for Envelope-Tracking Power Amplifiers Using Decomposed Piecewise Volterra Series
TL;DR: In this paper, a piecewise Volterra model based on a vector threshold decomposition technique was introduced to compensate the distortion induced by power amplifiers by employing conventional digital predistortion techniques.
Journal ArticleDOI
Wideband Envelope Tracking Power Amplifiers With Reduced Bandwidth Power Supply Waveforms and Adaptive Digital Predistortion Techniques
TL;DR: In this article, the bandwidth of the power supply waveform is reduced from 20 to 4 MHz, and a linearization method is proposed to correct the nonlinearity caused by the bandwidth reduction.
Journal ArticleDOI
High-Efficiency WCDMA Envelope Tracking Base-Station Amplifier Implemented With GaAs HVHBTs
Jinseong Jeong,Donald F. Kimball,Myoungbo Kwak,Paul Draxler,Chin Hsia,Craig Steinbeiser,Thomas Landon,Oleh Krutko,Lawrence E. Larson,Peter M. Asbeck +9 more
TL;DR: A high-performance GaAs HVHBT WCDMA/WiMAX base-station power amplifier is presented, which uses an envelope tracking bias system to achieve high linearity and efficiency.
Journal ArticleDOI
Digitally Assisted Dual-Switch High-Efficiency Envelope Amplifier for Envelope-Tracking Base-Station Power Amplifiers
Chin Hsia,Anding Zhu,Jonmei J. Yan,Paul Draxler,Donald F. Kimball,Sandro Lanfranco,Peter M. Asbeck +6 more
TL;DR: In this article, a dual-switch envelope amplifier for wideband high-efficiency envelope tracking (ET) base-station power amplifiers (PAs) is proposed, which comprises two switching buck converters to provide the high-power ET signal to the RF stage and a wideband linear stage to maintain the envelope signal accuracy.