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In this work, a low noise figure, high linearity cross-coupled negative feedback common gate (CG) low noise amplifier (LNA) in 1.2 V, 65 nm CMOS technology with a unique output conductance optimization method is proposed. Traditionally, CG-LNAs are known for their good linearity at the cost of a poor noise figure, making them limited to few applications where high linearity is the primary goal. The...
A low-noise amplifier (LNA) employing novel self-biased shunt-feedback mechanism for X band applications is presented. The shunt-shunt feedback impedance is not only used to eliminate the use of gate-biased voltage, but also neutralize the miller capacitor of the input transistor. With combining current-reused technique into the amplifier, it is benefit to boost power gain and maintain low power consumption...
Class D amplifiers are becoming the most feasible solution for embedded audio application. However, distortions due to the non-linear nature of switching stage are the main drawback for this amplifier topology. This paper discusses the design and implementation of high fidelity audio class D using sliding mode control scheme. This design method proves to be a cost effective solution for industrial...
In this paper, a cascode bipolar low noise amplifier (LNA) employing a shunt feedback capacitor is presented, for which the linearity and the noise figure (NF) can be optimized by reducing the transistor size and degeneration inductance. We also show that the second-order interaction, which affects the third-order nonlinearity, becomes insensitive to low-frequency input termination as the DC current...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
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