Tunable Universal Filter in ±0.5 V 32 nm CNFET for ISM 2.4 GHz Bluetooth/Zigbee Transceivers

  • Jyoti SharmaEmail author
  • Mohd. Samar Ansari
  • Sudip Kundu
Conference paper
Part of the Advances in Intelligent Systems and Computing book series (AISC, volume 624)


Carbon nanotube field-effect transistors (CNFETs) have emerged as practicable replacements to conventional MOSFETs for contemporary analog/digital design. This work highlights a current-mode tunable universal filter (CMUF), which can provide band-reject, low-, band-, and high-pass filtering functions, by making use of a new CNFET-based second-generation current-controlled conveyor (CCCII) and grounded capacitors only. The circuit operates on lower power supply and bias currents, and uses smaller capacitors as compared to CMOS counterparts. Corner frequencies (for LPF and HPF) and center frequency (for BPF) have been obtained in the GHz range. Tunability of filter outputs with respect to bias current has been demonstrated. This CMUF is suitable for operation in 868–915 MHz, and 2.4–5 GHz bands used by Zigbee and Bluetooth, respectively. Noise and Monte Carlo analyses have also been performed. The performance of both the CCCII and the CMUF is verified with extensive SPICE simulations.


Carbon nanotube FET CNFET Current-controlled conveyor Universal filter Bluetooth Zigbee 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Jyoti Sharma
    • 1
    Email author
  • Mohd. Samar Ansari
    • 2
  • Sudip Kundu
    • 3
  1. 1.Department of Electronics and Communication EngineeringBIT MesraJaipurIndia
  2. 2.Department of Electronics EngineeringAMUAligarhIndia
  3. 3.Department of Electronics and Communication EngineeringBIT MesraRanchiIndia

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