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Two kinds of novel converter circuits containing single-electron transistors and MOS transistors are proposed. The proposed Digital to Analog Converter (DAC) circuit and Analog to Digital Converter (ADC) circuit are both improved in the base of the pure SET and SET/MOS hybrid circuits that were designed by other research groups, so they possess the merits of both SET and MOS circuits. Through the...
A novel inductor model, which considers the magnetic and capacitive substrate coupling comprehensively, and a new fast approach for substrate network parameter extraction are presented in this paper. The introduction of substrate parasitic inductance (SPI) and the mutual inductance is based on the resonance characteristic of the measured substrate's Y-parameter and their physical meaning. A series...
This paper presented a RF model of an accumulation-mode MOS varactor for RF applications. Based on this model, simple and continuous equation has been used for describing the characteristics of the device in all operation regions. With a single topology composed of lumped elements, this model can be easily used in commercial circuit simulators. Based on S-parameter measurement, excellent agreement...
In this paper, a new model for interleaved planar symmetric balun in CMOS radio frequency integrated circuits (RFICs) is developed. The model uses a “2-Π” sub-circuit to represent each inductor coil in the balun, and a novel substrate inductance is introduced to describe the substrate eddy-current effect. Verification with the measured data from a CMOS process demonstrates the model's accurate performance...
This paper presents a new lumped element model for conventional Marchand baluns. Analyzed by even- and odd-mode method, the equivalent equations are derived for λ/4 coupled lines. Based on the proposed 5th-order equivalent circuit for λ/4 coupled lines, the model parameters can be easily calculated by the derived equations. A GaAs monolithic wideband Marchand balun was implemented to verify the model...
For speedy robust object recognition, our model builds on Serre’s standard model and modifies it by additional biological characteristics, such as introducing the manner of neuron firing, feature localization, and merging unit features in the higher layers. According to the four-layer architecture of standard model, we first apply Gabor filters on a higher intermediate frequency band of original image,...
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