DPDT_Static (Double Pole Double Throw Switch, Static)
Symbol
Available in ADS
Parameters
Name |
Description |
Units |
Default |
---|---|---|---|
State |
State of switch: |
None |
1 |
F1 |
First frequency breakpoint |
||
F2 |
Second frequency breakpoint |
||
F3 |
Third frequency breakpoint |
||
Loss1 |
Attenuation for frequency ≤ F1 |
dB |
0 |
Loss2 |
Attenuation for F1 < frequency ≤ F2 |
dB |
0 |
Loss3 |
Attenuation for F2 < frequency ≤ F3 |
dB |
0 |
Loss4 |
Attenuation for frequency > F3 |
dB |
0 |
VSWR1 |
Voltage standing wave ratio at both ports for frequencies ≤ F1 |
None |
1 |
VSWR2 |
Voltage standing wave ratio at both ports for frequencies > F1, ≤ F2 |
None |
1 |
VSWR3 |
Voltage standing wave ratio at both ports for frequencies > F2, ≤ F3 |
None |
1 |
VSWR4 |
Voltage standing wave ratio at both ports for frequencies > F3 |
None |
1 |
Isolat |
Isolation |
dB |
100 |
ZRef |
Reference impedance for all ports |
Ohm |
50 |
Temp |
Temperature |
°C |
None |
Notes/Equations
- This model works in transient and circuit envelope simulation.
- Up to three frequency break points can be used to define four bands, with different losses and VSWR for each frequency band. Losses are entered as a positive attenuation. In other words, a 0.5 dB loss is entered as L1=0.5, not L1=−0.5.
Isolation is assumed to be constant across all frequency bands.
When using this device in a transient simulation, the switch setting must be constant.
If loss values are specified versus frequency via a dataset and using the component DATASETVARIABLE, then a time delay through the device will be introduced when using transient analysis.
Transient Analysis Time Delay = (1/(2 × MAX_FREQUENCY)) × POINTS
where
POINTS = (FILTER_ORDER/2) − 1 for FILTER_ORDER even
= (FILTER_ORDER + 1)/2 − 1 for FILTER_ORDER odd