tdr_sp_imped()
Returns step response. This function calculates time domain response from the S-parameter measurement directly. Normalization is taken into account
Syntax
y = tdr_sp_imped(Sii, delay, zRef, Tstart, Tstop, NumPts, window)
Arguments
| Name | Description | Range | Type | Default | Required |
|---|---|---|---|---|---|
| Sii | Complex reflection coefficient | (-∞, ∞) | complex | yes | |
| delay | delay value | [0, ∞) | real | yes | |
| zRef | Reference impedance | [0, ∞) | real | yes | |
| Tstart | Start Time | [0, ∞) | real | 0 | no |
| Tstop | Stop Time | [0, ∞) | real | 2 cycles | no |
| NumPts | Number of points | [0, ∞) | real ot string | 101 | no |
| Window | Windowing to be applied | [0, 7]† | real | 0 | no |
| † The window types allowed and their default constants are: 0 = None 1 = Hamming 0.54 2 = Hanning 0.50 3 = Gaussian 0.75 4 = Kaiser 7.865 5 = 8510 6.0 (This is equivalent to the frequency-to-time transformation with normal gate window setting in the 8510 series network analyzer.) 6 = Blackman 7 = Blackman-Harris 8 = 8510-Minimum 0 9 = 8510-Maximum 13 | |||||
Examples
x = tdr_sp_imped(S(1,1), 0.05ns, 50, -0.2 ns, 3.8 ns, 401, "Hamming")
Defined in
$HPEESOF_DIR/expressions/ael/DesignGuide_fun.ael
See Also
tdr_sp_gamma(), tdr_step_imped()
Notes/Equations
This function takes an S-parameter dataset and changes it to a step response. The step response is normalized and used to calculate reflection coefficient vs. time. This gamma is then used to calculate impedance versus time.
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