Title :
Centre-tapped spiral inductors for monolithic bandpass filters
Author :
Kuhn, W.B. ; Elshabini-Riad, A. ; Stephenson, F.W.
Author_Institution :
Bradley Dept. of Electr. Eng., Virginia Polytech. Inst. & State Univ., Blacksburg, VA, USA
fDate :
4/13/1995 12:00:00 AM
Abstract :
A centre-tapped spiral inductor is proposed for use in fully balanced monolithic bandpass filters. The design consumes only 63% of the area required by two traditional spirals and delivers a common-mode rejection ratio approaching 40 dB. Moreover, the self-resonance frequency is twice that of a traditional grounded spiral of the same inductance value. Enabling higher reactances and Q-values to be achieved
Keywords :
Q-factor; active filters; analogue integrated circuits; band-pass filters; inductors; monolithic integrated circuits; radiofrequency filters; Q-values; centre-tapped spiral inductor; common-mode rejection ratio; fully balanced filter; monolithic bandpass filters; reactances; self-resonance frequency;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19950411
