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A 2nd order RF bandpass filter with Q-enhancement active inductor is presented. In the filter, a design technique for a tunable Q-enhancement CMOS active inductor operating in the wide RF-band is described. Moreover, issues related to noise and stability of the active inductor is addressed. Simulated performance presented shows that the filter has about 50.6dB spurious free dynamic range (SFDR) at...
This paper reviews filter implementation alternatives. A 2nd 1.8V 2.14GHz Q-enhanced LC filter with 36MHz bandwidth is reported. The filter uses a resonator built with spiral inductors and inversion-mode PMOS capacitors that provide frequency tuning. The Q tuning is through an adjustable negative-conductance generator. As such, noise and stability analysis demonstrate the design tradeoffs involved...
This paper presents a 4th order RF bandpass filter based on active inductor. In the filter, a design technique for a high-Q CMOS active inductor operating in the wide RF-band is described. Simulated performance is shown that the center frequency of filter using a 0.25-mum CMOS process can be operated at the 1.81-2.45GHz frequency band under a 1.8V power supply
This paper presents a 6th order RF bandpass filter using low-voltage based on active inductor. In the filter, a design technique for a high-Q CMOS active inductor operating in the RF-band is described. Simulated performance presented is shown that the center frequency of filter using a 0.25-mum CMOS process can be operated at the 2.05-2.45 GHz frequency band under a 1.8V power supply and suitable...
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