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A new fully differential ultra low-voltage, ultra low-power down-converter mixer for ultra wideband application is presented in this paper. This mixer is designed using four-terminal MOS transistors. The radio frequency is applied to source and local-oscillator signal is applied to the gate with body of devices simultaneously. A DTMOS common source amplifier is employed increasing conversion gain...
All oscillators are periodically time varying systems, so to accurate phase noise calculation and simulation, time varying model should be considered. Phase noise is an important characteristic of oscillator design. It defined as the spectral density of the oscillator spectrum at an offset from the center frequency of the oscillator relative to the power of the oscillator. In this paper we study linear...
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