IQ_DemodTuned (I/Q Demodulator, Tuned)
Available in ADS
Parameters
Name |
Description |
Units |
Default |
|---|---|---|---|
Fnom |
Nominal input frequency |
GHz |
1 |
Rout |
Output resistance |
Ohm |
50 |
Notes/Equations
- This is a tuned demodulator that selects the input harmonic closest to the specified Fnom frequency and generates two baseband output signals equal to the instantaneous in-phase and quadrature-phase components of the selected carrier frequency.
If there is no analysis harmonic frequency close enough to the Fnom frequency, a warning is issued and the output is 0. Input impedance is infinite; output impedance is set by Rout, and is limited to a minimum value of 0.1 Ohm. The open circuit output voltages are defined simply by
where
k represents the value at the analysis harmonic frequency closest to the Fnom value
0 represents the baseband component of the output voltages.
All non-baseband output frequency components are 0. - In transient and baseband envelope simulations, because the imaginary part of baseband signals is 0, this model replicates the input on the I output only.