Suppression of Microwave High-Speed Circuit Noise by Using a 10 GHz Transimpedance Amplifier at 30 oC

A 10 GHz low noise transimpedance amplifier (TIA) is designed in which a new high-speed Angelov transistor model was employed. Thermal circuit components were simulated for noise measurement at 30C at which a typical microwave noise of 20 pA/Hz was applied as the TIA input. A form of feedback topology helped to reduce the minimum noise figure to 3 dB, while the |S21| parameter gain proved to be 21.7 dB. A noise voltage at the TIA output was 3.23 x 10-15 V2/Hz. The designed circuit showed a stability factor value of 0.36 which is considered as conditionally stable.