Novel Control Techniques of Input-Match and Output-Match for an Inductively Degenerated Low Noise Amplifier

This paper presents two novel techniques to control the input match and the output match for 2.45 GHz CMOS inductively degenerated Low Noise Amplifier (LNA). These control techniques allow the compensation of all deviation of these parameters caused by the undesirable factors such as Process-Temperature-Voltage (PVT) variations, parasitic elements, etc. These techniques are studied theoretically and through simulation to be validated. Moreover, we investigated the effects of the parameters tuning in the other LNA performances and we showed that these effects are not important. The simulation results present a control of the input match S11 between -33.12dB and -56.23dB. The input match center frequency can be controlled between 2.361GHz and 2.603GHz. The tuning of the output match S22 can be made between -17.98dB and -53.65dB. The center frequency of the output match can be controlled between 2.336GHz and 2.540GHz. Also, we proved that the control of the input match quality and its center frequency are independent. The same result was shown for the output match quality and its center frequency.