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{
"cells": [
{
"cell_type": "markdown",
"metadata": {},
"source": [
"# Chapter 7: Transmission Lines"
]
},
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.1: Inductance_and_outer_conductor_diameter.sci"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Determine inductance per meter and outer conductor diameter\n",
"\n",
"Z0 = 75;\n",
"C = 69e-12;\n",
"k = 2.23;\n",
"d = 0.584;\n",
"\n",
"L = Z0^2*C;\n",
"D = d * 10^(Z0/(138/sqrt(k)));\n",
"\n",
"disp(L, 'Inductance per meter (in H/m)')\n",
"disp(D, 'Outer conductor diameter (in mm)')"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.2: Minimum_value_of_characteristic_impediance.sci"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Determine the minimum value that the characteristic impediance of an air-dielectric parallel-wire line\n",
"\n",
"Zmin = 276*log10(2*1);\n",
"\n",
"disp(Zmin, 'Min. value that char. impd. of an air-dielectric parallel-wire line is (in ohms)')"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.3: Outer_conductor_diameter.sci"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Determine the outer conductor diameter of a coaxial cable\n",
"\n",
"Z0 = 2000;\n",
"k = 2.56;\n",
"d = 0.025;\n",
"\n",
"\n",
"D = d * 10^(Z0/(138/sqrt(k)));\n",
"D1 = D/1e+6;\n",
"D2 = D1/9.44e+12;\n",
"\n",
"disp(D2, 'Outer conductor diameter is (in light years)')"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.4: Charactericstic_impediance.sci"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Determine the charactericstic impediance of the quarter-wave transfomer\n",
"\n",
"Z0 = 200;\n",
"Zl = 300;\n",
"\n",
"Z01 = sqrt(Z0*Zl);\n",
"\n",
"disp(Z01, 'Charactericstic impediance of the quarter-wave transfomer is (in ohms)')"
]
}
,
{
"cell_type": "markdown",
"metadata": {},
"source": [
"## Example 7.5: Reactance_and_characteristic_impedance.sci"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {
"collapsed": true
},
"outputs": [],
"source": [
"//Determine reactance of the stub and the characteristic impedance of the quater-wave transformer, both connected directly to the load\n",
"\n",
"Z0 = 300;\n",
"Zl = 200 + 75*%i;\n",
"Bstub = 1.64e-3;\n",
"\n",
"Yl = 1/Zl;\n",
"X = -1/Bstub;\n",
"Gl = 4.38e-3;\n",
"Rl = 1/Gl;\n",
"\n",
"Z01= sqrt(Z0*Rl);\n",
"\n",
"disp(X, 'Reactance of quarter-wave transformer is (in ohms)')\n",
"disp(Z01, 'Char. imp. of quarter-wave transformer (in ohms)')"
]
}
],
"metadata": {
"kernelspec": {
"display_name": "Scilab",
"language": "scilab",
"name": "scilab"
},
"language_info": {
"file_extension": ".sce",
"help_links": [
{
"text": "MetaKernel Magics",
"url": "https://github.com/calysto/metakernel/blob/master/metakernel/magics/README.md"
}
],
"mimetype": "text/x-octave",
"name": "scilab",
"version": "0.7.1"
}
},
"nbformat": 4,
"nbformat_minor": 0
}
|
