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An Active Recursive RF Filter in 0.35 μm BiCMOS

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Abstract

An active recursive filter approach is proposed for the implementaion of an inductorless, tuneable RF filter in BiCMOS. A test circuit was designed and manufactured in a 0.35 μm SiGe BiCMOS technology. In simulations, the feasibility of this type of filter was demonstrated and reasonably good performance was obtained. The simulations show a center frequency tuning range from 6 to 9.4 GHz and a noise figure of 8.8 to 10.4 dB depending on center frequency. Gain and Q-value are tunable in a wide range. Simulated IIP-3 and 1-dB compression point is −26 and −34 dBm respectively, simulated at the center frequency 8.5 GHz and with 15 dB gain. Measurements on the fabricated device shows a center frequency tuning range from 6.6 to 10 GHz, i.e. slightly higher center frequencies were measured than the simulated.

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Authors and Affiliations

  1. Electronic Devices, Department of Electrical Engineering, Linköping University, SE-58183, Linköping, Sweden

    Stefan Andersson & Christer Svensson

Authors
  1. Stefan Andersson
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  2. Christer Svensson
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Corresponding author

Correspondence to Stefan Andersson.

Additional information

Stefan Andersson was born in Vetlanda, Sweden in 1975. He received his M.Sc. in Applied Physics and Electronics from Linking University in 2000. In 2000 he joined Ericsson Microelectronics AB as designer of analog and mixed-signal circuits. Since 2001 he is working towards his Ph.D. degree at Electronic Devices, Linking University. His research interests are in the area of RF in silicon for wideband communication and radar applications.

Christer Svensson is professor in Electronic Devices, Linköping University. He was born in Borå s, Sweden in 1941 and received the M.S. and Ph.D. degrees from Chalmers University of Technology, Sweden, in 1965 and 1970 respectively. He was with Chalmers University from 1965 to 1978, where he performed research on MOS transistors, nonvolatile memories and gas sensors. He joined Linköping University 1978, and is since 1983 professor in Electronic Devices there. He initiated a new research group on integrated circuit design. Svenssons present interests are high performance and low power analog and digital CMOS circuit techniques for computing, signal processing and sensors. Svensson has published more than 170 papers in international journals and conferences and holds ten patents. He was awarded the Solid-State Circuits Council 1988–89 best paper award. He is a member of the Royal Swedish Academy of Engineering Sciences. He is a cofunder of several companies, most recently Switchcore AB and Optillion AB.

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Andersson, S., Svensson, C. An Active Recursive RF Filter in 0.35 μm BiCMOS. Analog Integr Circ Sig Process 44, 213–218 (2005). https://doi.org/10.1007/s10470-005-3002-2

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  • DOI: https://doi.org/10.1007/s10470-005-3002-2

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