Title :
A 1V active-RC complex filter for wireless sensor networks application
Author :
Yi, Zeng ; Li, Zhiqun
Author_Institution :
Inst. of RF- & OE-ICs, Southeast Univ., Nanjing, China
Abstract :
A 1V active-RC complex filter with on-chip automatic frequency tuning circuits for wireless sensor networks RF transceiver chip is designed using TSMC 0.18μm CMOS process. The filter is synthesized from a low-pass 3rd-order Chebyshev RLC ladder filter prototype. The filter is centered at 2MHz with a bandwidth of 3MHz. The simulated results show that the filter provides more than 30dB image rejection ratio while the ripple in the pass-band is less than 0.4dB. The filter consumes 3.9mA with 1V single supply voltage.
Keywords :
Chebyshev filters; RC circuits; RLC circuits; active filters; circuit tuning; ladder filters; low-pass filters; radio transceivers; wireless sensor networks; RF transceiver chip; TSMC CMOS process; active-RC complex filter; bandwidth 3 MHz; current 3.9 mA; image rejection ratio; low-pass 3rd-order Chebyshev RLC ladder filter prototype; on-chip automatic frequency tuning circuits; size 0.18 mum; voltage 1 V; wireless sensor networks application; Arrays; Band pass filters; Capacitors; Low pass filters; Resistors; Tuning; Wireless sensor networks; Leapfrog; Wireless sensor networks; active-RC complex filter; digital tuning; low-voltage;
Conference_Titel :
Wireless Communications and Signal Processing (WCSP), 2011 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4577-1009-4
Electronic_ISBN :
978-1-4577-1008-7
DOI :
10.1109/WCSP.2011.6096704
