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In this paper, a new area-effective complex-filter topology which can be used as an image-reject filter in low-IF receiver is proposed. A first-order image-reject filter obtained according to a new topology which corresponds to a complex shunt RC circuit. To demonstrate the usefulness of filter, simulation results of the filter are obtained by using SPECTRE in the CADENCE design tool.
In this paper, a new active-only integrator which can be used to realize low frequency filters with small chip area is presented. The circuit can be effectively implemented using transconductance elements and its integration frequency is electronically controllable. In order to illustrate its usefulness, a second-order multifunction filter with low cut-off frequency, yet which occupy a small chip...
In this paper, a simple filter topology that can be used to implement first-order MOS-only allpass filter is proposed. The proposed MOS-only allpass filter offers inherently very accurate magnitude and phase characteristics at very high frequencies. However, MOS-only active filter suffers from an inherent low frequency limitation. In order to address this issue, the modification technique allowing...
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