ACCURATE Q-PREDICTION FOR RFIC SPIRAL INDUCTORS USING THE 3DB BANDWIDTHIlango Jeyasubramanian
• Analyzed and extracted the inductance, parasitic resistance and capacitance for a spiral inductor layout in IBM 130nm technology using MATLAB code.
• Analyzed the improved Q-prediction accuracy by measuring Q factor as Wo/dW at different resonant frequencies from the inductor self-resonant frequency by numerically adding a capacitor (Cnum ) in parallel to the measured Y11 data of spiral inductor equivalent model using MATLAB codes.
• Measurement from new method showed significant Q-value to be useful enough all the way up to the self-resonance frequency at 1-5Ghz when compared to unreasonable results from conventional [-Imag(Y11)/ Re(Y11)] value.
ACCURATE Q-PREDICTION FOR RFIC SPIRAL INDUCTORS USING THE 3DB BANDWIDTHIlango Jeyasubramanian
• Analyzed and extracted the inductance, parasitic resistance and capacitance for a spiral inductor layout in IBM 130nm technology using MATLAB code.
• Analyzed the improved Q-prediction accuracy by measuring Q factor as Wo/dW at different resonant frequencies from the inductor self-resonant frequency by numerically adding a capacitor (Cnum ) in parallel to the measured Y11 data of spiral inductor equivalent model using MATLAB codes.
• Measurement from new method showed significant Q-value to be useful enough all the way up to the self-resonance frequency at 1-5Ghz when compared to unreasonable results from conventional [-Imag(Y11)/ Re(Y11)] value.