1403/01/10
محمد غلامی

محمد غلامی

مرتبه علمی: دانشیار
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس:
دانشکده: دانشکده مهندسی و فناوری
نشانی:
تلفن: 01135302904

مشخصات پژوهش

عنوان
Increasing frequency of ring oscillators by using negative capacitors
نوع پژوهش
JournalPaper
کلیدواژه‌ها
.
سال
2019
مجله ELECTRONICS LETTERS
شناسه DOI
پژوهشگران Mohammad Gholami ، Mohammad Fallah

چکیده

A new method is proposed for increasing the oscillation frequency of resistive load ring oscillators. Frequency increment is achieved by decreasing of the output equivalent capacitor. That is, a negative capacitor circuit is used to decrease the output equivalent capacitor. Oscillation frequency will be increased, even if capacitors in output nodes are only due to internal capacitors of transistors. The advantages of this new structure are examined by simulating a three-stage ring oscillator in TSMC 0.18 m technology. Simulation results show a nine times increase in oscillation frequency of the proposed structure. The results of using this structure are even better than the situation in which the ideal negative capacitor is used.