High power, high conversion gain microwave frequency doublers using wide bandgap semiconductor devices are developed. A method of determining the optimal harmonic terminations using accurate nonlinear computer models and load- and source-pull simulat
By Kelvin Yuk Description of Antenna Testing A detailed block diagram of the test setup illustrating the signal path is shown in Figure 1. A photograph of the antenna setup is shown in Figure 2. The antenna range was set up on the roof of Kemper
Kelvin Yuk EEC282 Akella June 4, 2002 I. Introduction What is the problem? The problem is dealing with a high-level description of a system and finding an efficient way of co-synthesizing that system into hardware and software such that performance
As reduced order modeling of large scale systems by using Pade approximation has become an important part of improving the computation speed of circuit simulation, more methods are being explored. Pade approximation by moment matching (AWE)
By Kelvin Yuk and G. R. Branner Originally appears: 2011 Midwest Symposium on Circuits and Systems Microwave frequency multipliers provide a high performance means of generating microwave and millimeter-wave signals in a wide variety of
A high-voltage (HV) integrated circuit has been demonstrated to transport fluidic droplet samples on programmable paths across the array of driving electrodes on its hydrophobically coated surface. This exciter chip is the engine for dielectrophoresi
An empirical large-signal model for high power microwave SiC MESFETs capable of predicting self-heating thermal behavior is presented. A generalized drain current equation based on pulsed-gate IV characteristics measuring up to 2A and 58V is presente
By Kelvin Yuk Date: June 5, 2002 Class: EEC282 – Akella Like Dislike
By Kelvin Yuk and Jorge Campos Written: June 7, 2002 Even though research on Silicon-on-Insulator (SOI) devices has proven it to be the next technology that will significantly improve the performance of digital integrated circuits, many skeptics have
By Kelvin Yuk for the completion of EEC218A Originally published Dec 6, 2001 Abstract For the project, I propose to do the design and layout of a 4-bit serial adder. The serial adder is composed of two shift registers, one used as an accumulator for
Published at WAMICON on April 25, 2017 J. Tan, K. S. Yuk, and G.R. Branner Dept. of Electrical and Computer Engineering University of California at Davis Davis, USA Abstract A wideband Gallium Nitride (GaN) HEMT power amplifier (PA) achieving 7.6W
Microwave frequency multipliers provide a high performance means of generating microwave and millimeter-wave signals in a wide variety of communications and radar systems. The advances in active microwave frequency multipliers due to improvements in
