Microwave selective amplifiers with paraphase output

Microwave selective amplifiers (SA) with paraphase output that provide high Q-factor and voltage gain (K
₀
) on quasi-resonance frequency f
₀
at low parametric sensibility are considered. The results of the mathematical analysis and simulation of SA on 0.25 μm SiGe process are given. Presented SA, along with selective properties has phase splitter feature and allow current control of Q-factor.