blob: bf91cf69e021f0983dff90abb48f92beace1c2e7 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
// Chapter 3 example 8
//------------------------------------------------------------------------------
clc;
clear;
// Given data
f = 100*10^6; // operating frequency in Hz
v = 2*10^8 ; // propagation velocity in m/s
Zo = 300; // charecteristic impedance in ohm
Zin = 300; // input impedance in ohm
l = 1; // length in m
V = 100;
// Calculations
lamda = v/f // wavelength in m
if lamda/2 ==l then
Zl = Zin;
end
k = (V*Zin)/(Zin+Zl)
//Vin = k*cos(2*%pi*f*t)
// since the line is lamda/2 long ,the signal undergoes a phase delay of βl = (2*π)/lamda *(lamda/2) = π
// Output
mprintf('Vin = %dcos(2π*%3.0et)\n Vl = %dcos(2π*%3.0et-π)',k,f,k,f );
//------------------------------------------------------------------------------
|