How to input a time signal in Feko

Jaehoon

In the time signal example (attached), a monopole antenna works as a sinusoidal wave transmitter and a dipole does as a receiver.

Step 1: Model setup in CADFEKO and solving in frequency domain

• Monopole (Tx): Voltage source (1V)
• Dipole (Rx): 50 Ohm Load
• Request: Near field distribution between Tx and Rx

Step 2: Define a input time signal in POSTFEKO

• Input time signal: Sinusoidal wave of 300 MHz
• Time analysis > New time signal
• Signal type = Define pulse mathematically
• Time axis unit= ns
• Total signal duration = 10 ns
• f(t)= sin(2*3.14*300*10^6*t)

Step 3: Post-process the time domain output from “Time analysis” tab

• Put the near-field distribution in 3D view

• Add the voltages measured at Tx and Rx ports to Rectangular graph