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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
  1. Pathloss is infinite outside a window defined by BW.
  2. 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.
  3. 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.
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