Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
the S21 is a ratio of energy and not power. So if you are work in a matched world, the answer is yes, they are the same, but if you work in un-matched condition the answer is no, they are not the same.
The S21 measurement is based on a reference impedance, usually 50 ohms. The source and load impedance as seen by the circuit can be changed with LC-transmission line circuits to values that may possibly increase the gain and reduce the noise figure.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.