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This paper presents the design of a low noise CMOS Gilbert cell mixer in 180 nm technology with the help of cadence tool. The switched biasing technique is used to improve the noise performance by splitting the tail current source into two small transistors. The proposed mixer produces a simulated conversion gain (CG) of 9.95 dB with a noise figure (NF) of about 8.12 dB. The supply voltage required...
Geometric Scaling and high channel doping incorporate loss in mobility. To compensate this, substrate engineering innovations like SOI(Silicon On Insulator) and strained silicon technologies are introduced. In this paper NMOS is designed on Strained Si/relaxed Si0.8Ge0.2 heterostructure using TCAD. Electrical analysis of Strained-Si nMOSFET has been done by the ATLAS 2D simulator using low field Arora...
This paper presents the design of a low noise amplifier (LNA) for the ultra wideband (UWB) signals which lies in the frequency range 3.1–10.6 GHz. This method uses resistive feedback gain enhanced noise cancelling technique. It is an inductor less LNA design which consumes less power and improves the noise Fig. By using this technique, we achieve a power gain of 10.7 dB, a noise Fig. of 2.2 dB at...
In most of the digital signal processing (DSP) applications the critical operations are the multiplication and accumulation. Real-time signal processing requires high speed and high throughput Multiplier-Accumulator (MAC) unit that consumes low power, which is always a key to achieve a high performance digital signal processing system. In this paper, design of MAC unit is proposed. The multiplier...
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