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2004•Unpublished venueOpen access

An active-RC reconfigurable lowpass-polyphase tow-thomas biquad filter

A. Yamazaki, Arun Ravindran, Ömer Can Akgun, M. Ismail

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Abstract

A novel active-RC biquad is presented which can be reconfigured as a polyphase filter for a low IF wireless receiver architecture, and as a lowpass filter for a zero IF wireless receiver architecture. A second order lowpass-polyphase reconfigurable filter is implemented to illustrate the technique. A 1.8 V fully differential operational amplifier in 0.18 /spl mu/ CMOS technology is used as the active element.

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What this paper is about

A novel active-RC biquad is presented which can be reconfigured as a polyphase filter for a low IF wireless receiver architecture, and as a lowpass filter for a zero IF wireless receiver architecture. A second order lowpass-polyphase reconfigurable filter is implemented to illustrate the technique. A 1.8 V fully differential operational amplifier in 0.18 /spl mu/ CMOS technology is used as the active element.

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OpenAlex reports 6 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

A novel active-RC biquad is presented which can be reconfigured as a polyphase filter for a low IF wireless receiver architecture, and as a lowpass filter for a zero IF wireless receiver architecture. A second order lowpass-polyphase reconfigurable filter is implemented to illustrate the technique. A 1.8 V fully differential operational amplifier in 0.18 /spl mu/ CMOS technology is used as the active element.

Key concepts: Digital biquad filter, Polyphase system, Low-pass filter, Active filter, Electronic engineering, High-pass filter, Computer science, Amplifier

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