A Highly Linear Low Pass Filter for Low Voltage Reconfigurable Wireless Applications

• Autorzy: Csipkes G. , Hintea S. , Csipkes D. , Rus C. , Festila L. , Fernandez-Canque H.
• Języki publikacji: EN

Abstrakty

EN

This paper presents a reconfigurable and programmable analogue low pass filter for low voltage wireless applications. The proposed filter may be used for channel or band selection in multi-mode receiver front ends employing direct frequency conversion. The circuit has been synthesized using state variables and leapfrog OTA-C techniques, features programmable order, digitally variable frequency parameters and wide linear range. The fundamental OTA cell has been implemented with fully balanced second-generation current conveyors, suitable for operating with low supply voltages. Transistor level simulations based on a 180 nm digital CMOS technology have demonstrated the functionality of the design.

Słowa kluczowe

EN

software radio; reconfigurable filters

• Wydawca: Łukasiewicz Industrial Research Institute for Automation and Measurements PIAP
• Czasopismo: Journal of Automation Mobile Robotics and Intelligent Systems
• Rocznik: 2009
• Tom: Vol. 3, No. 2
• Strony: 76--81
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Csipkes G.

autor

Hintea S.

autor

Csipkes D.

autor

Rus C.

autor

Festila L.

autor

Fernandez-Canque H.

• Technical University of Cluj-Napoca, Str. Daicoviciu 17, 400027, Romania,

Bibliografia

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• [4] “Reconfigurable SDR Equipment and supporting Networks.Reference Models and Architectures”,Wireless World Research Forum, white paper, 2004.
• [5] Csipkes D., , “Synthesis method for state variable Gm-C filters with a reduced number of active components”,MIXDES 2003, pp. 292-297.
• [6] Hintea S., , “On the Design of a Reconfigurable OTA-C Filter for Software Radio”. On:NASA/ESA Conference on Adaptive Hardware and Systems (AHS2007).
• [7] K. Koli, K. Halonen,Cmos Current Amplifiers: Speed Versus Nonlinearity, Kluwer, 2002.
• [8] Liu S., Tsao H., Wu J., “CCII Based Continuous-Time Filters with Reduced Gain-Bandwidth Sensitivity”,IEE Proceedings-G, vol.138, 1991, pp. 210-216.
• [9] Kardontchik J.E.,Introduction to the Design of Transconductor-Capacitor Filters, Kluwer, 1992.
• [10] Forghani-Zadeh H.P., Rincon-Mora G.A., “A Continuous,Low-Glitch, Low-Offset, Programmable Gain and Bandwidth Gm-C Filter”, 48 Midwest Symposium on Circuits and Systems, vol. 2, 7 -10 August 2005, pp. 1629-1632.