LOS_Link (Line-Of-Sight Antenna Link)
Symbol
Available in ADS
Parameters
Name |
Description |
Units |
Default |
|---|---|---|---|
CenterFreq |
Link center frequency |
GHz |
1 |
BW |
Link bandwidth |
MHz |
100 |
TxGain |
Transmitting antenna gain |
dB |
0 |
TxVSWR |
Transmitting antenna VSWR |
None |
1 |
TxParabolaD |
Transmitting parabolic antenna diameter; overwrites TxGain |
|
|
TxEfficiency |
Transmitting parabolic antenna efficiency; overwrites TxGain |
None |
None |
RxGain |
Receiving antenna gain |
dB |
0 |
RxVSWR |
Receiving antenna VSWR |
None |
1 |
RxParabolaD |
Receiving parabolic antenna diameter; overwrites RxGain |
|
|
RxEfficiency |
Receiving parabolic antenna efficiency; overwrites RxGain |
None |
None |
RxNoiseTemp |
Receiving antenna noise temperature |
K |
150 |
PathLength |
Line-of-sight path length |
km |
10 |
NotchFreq |
Notch frequency due to ground reflection path interference |
|
|
NotchDepth |
Power of reflected ray relative to direct ray |
dB |
None |
DeltaDelay |
Time delay of ground reflection path w.r.t. LOS path |
|
|
Z1 |
Transmitting antenna reference impedance |
Ohm |
50 |
Z2 |
Transmitting antenna reference impedance |
Ohm |
50 |
Range of Usage
PathLength > 10 wavelengths
Notes/Equations
- Pathloss is infinite outside a window defined by BW.
- Transmitting antenna gain can be defined by TxGain or by TxParabolaD and TxEfficiency. If all three parameters are specified, TxParabolaD and TxEfficiency will overwrite TxGain. The same applies to receiving antenna as well.
- The S-Parameter and noise implementation of this model is as follows. S11, S22, S12, S21, and I_Noise are derived from the user-specified LOS_link parameters.
