rf1008
Full Member level 2
Hi all,my team member is just simulating one RFIC design and need to know the impedance of the chip model to confirm the Vrms of RF carrier.From some papers, he has got the input impedance of the differential ports of the chip model, but the impedance has two values which are in r+j type and Rin//Cin type of course two types are the same and could be transfered to each other.BUT,BUT,the problem is which type impedance is better or correct to be used as the denominator of V^2/R.
For the formula P=V^2/R, P is got from known input RF power in dBm,then the numerator V(Vrms of RF carrier)will be calculated when denominator R is confirmed. The question is R=r or R=Rin? j and Cin could be cancelled by matching.
thank u!
For the formula P=V^2/R, P is got from known input RF power in dBm,then the numerator V(Vrms of RF carrier)will be calculated when denominator R is confirmed. The question is R=r or R=Rin? j and Cin could be cancelled by matching.
thank u!