Title :
An inductorless 3–5 GHz band-pass filter with tunable center frequency in 90 nm CMOS
Author :
Tuan Anh Vu ; Sudalaiyandi, Shanthi ; Hjortland, Hakon A. ; Nass, Oivind ; Lande, Tor Sverre
Author_Institution :
Dept. of Inf., Univ. of Oslo, Oslo, Norway
Abstract :
A novel inductorless tunable switched-capacitor band-pass filter based on N-path periodically time-variant networks is presented. The proposed UWB band-pass filter is complete with ring-oscillator used for multi-phase clock generation suitable for power-efficient IR-UWB systems. The filter prototype was fabricated in TSMC 90 nm CMOS, and occupies a chip area of 0.004 mm2. It archives a -3 dB bandwidth of 2 GHz while the center frequency can be tuned from 4 GHz to 4.4 GHz. Power consumption is 1.1 mW from 1.2 V supply voltage, and the performance was verified experimentally.
Keywords :
CMOS analogue integrated circuits; MMIC oscillators; band-pass filters; field effect MMIC; switched capacitor filters; ultra wideband communication; N-path periodically time-variant networks; TSMC CMOS; UWB band-pass filter; bandwidth 2 GHz; frequency 3 GHz to 5 GHz; inductorless tunable switched-capacitor band-pass filter; multiphase clock generation; power 1.1 mW; power-efficient IR-UWB systems; ring-oscillator; size 90 nm; tunable center frequency; voltage 1.2 V; Band-pass filters; Bandwidth; CMOS integrated circuits; Clocks; Generators; MOS devices; Tuning; Band-Pass Filter; Frequency Tuning; Multiphase Clock; N-Path Filter; Switched-Capacitor Circuits; UWB Filter;
Conference_Titel :
Circuits and Systems (ISCAS), 2013 IEEE International Symposium on
Conference_Location :
Beijing
Print_ISBN :
978-1-4673-5760-9
DOI :
10.1109/ISCAS.2013.6572088
