A dual RF-receiver preceded by discrete-step attenuators is implemented in 65nm CMOS and operates from 0.3– 1.0 GHz. The noise of the receivers is reduced by cross-correlating the two receiver outputs in the digital baseband, allowing attenuation of the RF input signal to increase linearity. With this technique a displayed average noise level below -169 dBm/Hz is obtained with +25 dBm IIP3, giv...

A 0.18 μm CMOS low noise amplifier using RCfeedback topology is proposed with optimized matching, gain, noise, linearity and area for UWB applications. The IC prototype achieved 9.5 dB of average power gain, low 3.4 dB noise figure (NF), -9.2 dB input match, -13.5 dB return loss, -6 dBm of IIP3 and only 0.54 mm size with 15 mW power consumption. Good agreement between the simulated and measured...

This work reveals the design for broadband high-power high-efficiency GaN HEMT power amplifier, operating in frequency band ranging from 2.15 GHz to 2.65 GHz. The proposed structure is implemented using Cree CGH40010 transistor. and performances over bandwidth are achieved load-pull technique. amplifier unconditionally stable entire band. With neatly designed matching circuits, introduced shows...

Basic theory and operation of low noise amplifiers and mixers are presented. Important figures of merits of these two devices such as gain, noise figure, compression point, and third order intercept point are introduced and derived. Measurement methods of these figures of merit are also described.

Basic theory and operation of low noise amplifiers and mixers are presented. Important figures of merits of these two devices such as gain, noise figure, compression point, and third order intercept point are introduced and derived. Measurement methods of these figures of merit are also described.

This work presents a simple implementation of reinforcement learning, using the temporal difference algorithm and a neural network, applied to the board game of Chung Toi, which is a challenging variation of Tic-Tac-Toe. The implementation of this learning algorithm is fully described and includes all parameter settings and various techniques to improve the ability of the network to learn the b...

Cover and yield are two of the most commonly monitored plant attributes in rangeland vegetation surveys. These variables are usually highly correlated and many previous authors have suggested point-intercept estimates of plant cover could be used as a surrogate for more expensive and destructive methods of estimating plant biomass. When measurement variables are highly correlated, double sampli...

A wideband CMOS variable gain low noise amplifier suitable for multi-standard radio applications between 75 MHz and 3 GHz is presented. Wideband matching to 50 Ohm (single ended) is achieved using a common-drain feedback stage whereas variable gain is realized using a resistive attenuator. The circuit has been designed in a 65 nm CMOS process and achieves 22 dB maximum gain, 29 dB gain range, 3...

Merci également à tous les membres de la troupe de l'ATQL, qui m'ont apporté un cadre d'éva-sion unique. J'adresse en particulier une pensée émue et infiniment reconnaissante à M. Claude Coulon, qui m'a transmis l'amour du théâtre. Merci enfin à tous ceux qui m'ont aidé et soutenu durant ces années de thèse : ma famille, mes amis, et surtout Anne, pour son soutien inconditionnel, sa patience et...

In this paper, a highly linear and low noise CMOS active RF tracking filter for a digital TV tuner is presented. The Gm cell of the Gm − C filter is based on a dynamic source degenerated differential pair with an optimized transistor size ratio, thereby providing good linearity and high-frequency operation. The proposed RF tracking filter architecture includes two complementary parallel paths, ...