A Self Calibrated, Dynamic Voltage Scaled Reconfigurable RF LNA
نویسندگان
چکیده
This work presents a 2.4 GHz, reconfigurable RF Low Noise Amplifier (LNA) using on-chip peak detection and calibration, to mitigate the deleterious effects of process, voltage and temperature (PVT) variations. The LNA can reconfigure its input impedance matching, as well as its gain. On-chip detection of optimal input/output impedance matching is performed using an amplitude peak detector. The feature of dynamic power supply scaling trades power for gain and can be used in short range, low power wireless applications. Measurement results show that the calibration of the LNA improves the input matching (S11) by a maximum of 5 dB , and power gain (S21) by 3dB, while not significantly degrading the Noise Figure (NF) and the linearity (IIP3).
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