Added(A)/Deleted(D) following books

 A  Engineering_Mechanics_of_Solids_by_Popov_E_P/Chapter1.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter10.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter11.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter12.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter2.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter4.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter5.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter6.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter7.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter8.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/chapter9.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/charpter_3.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/charpter_3_1.ipynb
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/screenshots/Untitled.png
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/screenshots/cap2.png
A  Engineering_Mechanics_of_Solids_by_Popov_E_P/screenshots/cap3.png
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch1.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch10.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch11.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch12.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch2.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch3.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch4.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch5.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch6.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch7.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch8.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/Ch9.ipynb
A  Microwave_Engineering_by_G._S._Raghuvanshi/screenshots/12refCoeff.png
A  Microwave_Engineering_by_G._S._Raghuvanshi/screenshots/1RefCoeff.png
A  Microwave_Engineering_by_G._S._Raghuvanshi/screenshots/6axialPhasVel.png

1 files changed, 258 insertions, 0 deletions

diff --git a/Microwave_Engineering_by_G._S._Raghuvanshi/Ch3.ipynb b/Microwave_Engineering_by_G._S._Raghuvanshi/Ch3.ipynb
new file mode 100644
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+++ b/Microwave_Engineering_by_G._S._Raghuvanshi/Ch3.ipynb
@@ -0,0 +1,258 @@
+{
+ "metadata": {
+  "name": "",
+  "signature": "sha256:cae0ff7581c3b5c12e11b4f1b44c3beb02347fef7d7d6837104f81f1c4303c1b"
+ },
+ "nbformat": 3,
+ "nbformat_minor": 0,
+ "worksheets": [
+  {
+   "cells": [
+    {
+     "cell_type": "heading",
+     "level": 1,
+     "metadata": {},
+     "source": [
+      "Ch-3 : Microwave Network Analysis"
+     ]
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Page Number: 142 Example 3.4"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from __future__ import division\n",
+      "from numpy import array, linalg, mat, set_printoptions\n",
+      "\n",
+      "#Given\n",
+      "\n",
+      "z=mat('[4 2 ;2 4]')\n",
+      "I=mat('[1 0;0 1]') \n",
+      "\n",
+      "\n",
+      "#Scattering matrix\n",
+      "s=(z-I)*linalg.inv(z+I)\n",
+      "set_printoptions(precision=3)\n",
+      "print 'Scattering Matrix:\\n' ,s"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Scattering Matrix:\n",
+        "[[ 0.524  0.19 ]\n",
+        " [ 0.19   0.524]]\n"
+       ]
+      }
+     ],
+     "prompt_number": 12
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Page Number: 142 Example 3.5"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "from math import sqrt, pi \n",
+      "from cmath import exp\n",
+      "#Given\n",
+      "P=12.8e-3  #W\n",
+      "l=3  #cm\n",
+      "lamb=4.2  #cm\n",
+      "vswr=2.2 \n",
+      "jfi=1J*4.49 \n",
+      "\n",
+      "#ap\n",
+      "ap=sqrt(2*P) \n",
+      "\n",
+      "#Phase shift\n",
+      "bl=(2*pi*l)/lamb \n",
+      "#bp\n",
+      "bp=(ap*(vswr-1))/(vswr+1) \n",
+      "\n",
+      "a=ap*exp(jfi) \n",
+      "b=bp*exp(jfi) \n",
+      "print 'Required Waves:\\n{:.3}'.format(a),'\\n{:.3}'.format(b)"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Required Waves:\n",
+        "(-0.0353-0.156j) \n",
+        "(-0.0132-0.0585j)\n"
+       ]
+      }
+     ],
+     "prompt_number": 13
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Page Number: 143 Example 3.6"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      " from math import log10\n",
+      "#Given\n",
+      "S11=0.10 \n",
+      "S12=0.90 \n",
+      "A12=-45 \n",
+      "S21=0.90 \n",
+      "A21=45 \n",
+      "S22=0.3 \n",
+      "\n",
+      "#(i) Network is reciprocal\n",
+      "if(A12==A21):\n",
+      "    print 'Network is reciprocal' \n",
+      "else:\n",
+      "    \n",
+      "    print 'Network is not reciprocal' \n",
+      "\n",
+      "\n",
+      "#(ii) Network is lossles\n",
+      "x=(S11**2)+(S12**2) \n",
+      "if(x==1):\n",
+      "    print 'Network is lossless' \n",
+      "else:\n",
+      "    \n",
+      "    print 'Network is not lossless' \n",
+      "\n",
+      "\n",
+      "#(iii)Return loss\n",
+      "T=S11-((S12*S21)/(1+S22)) \n",
+      "Tm=-T  #mod of T\n",
+      "L=-20*log10(Tm) \n",
+      "print 'Return Loss: %0.3f'%L,'dB'"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Network is not reciprocal\n",
+        "Network is not lossless\n",
+        "Return Loss: 5.629 dB\n"
+       ]
+      }
+     ],
+     "prompt_number": 17
+    },
+    {
+     "cell_type": "heading",
+     "level": 2,
+     "metadata": {},
+     "source": [
+      "Page Number: 163 Example 3.12"
+     ]
+    },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [
+      "#Given\n",
+      "S11=0.6 \n",
+      "S12=0.045 \n",
+      "S21=2.5 \n",
+      "S22=0.50 \n",
+      "TS=0.5 \n",
+      "TL=0.4 \n",
+      "Z0=50  #ohm\n",
+      "Vrms=10  #V\n",
+      "\n",
+      "#(i) Gain Parameters\n",
+      "#(i)Reflection coefficients of input and output\n",
+      "Tin=S11+((S12*S21*TL)/(1-(S22*TL))) \n",
+      "Tout=S22+((S12*S21*TS)/(1-(S22*TS))) \n",
+      "\n",
+      "#Transducer Gain\n",
+      "x=(1-(TS)**2)/((1-(S11*TS))**2) \n",
+      "y=(S21*S21) \n",
+      "z=(1-(TL)**2)/((1-(Tout*TL))**2) \n",
+      "GT=x*y*z \n",
+      "print 'Transducer Gain: %0.3f'%GT\n",
+      "\n",
+      "#Available Power Gain\n",
+      "z1=1-(Tout)**2 \n",
+      "GA=(x*y)/z1 \n",
+      "print 'Available power Gain: %0.3f'%GA\n",
+      "\n",
+      "#Power Gain\n",
+      "z2=1-(Tin)**2 \n",
+      "GP=(x*y)/z2 \n",
+      "print 'Power Gain: %0.3f'%GP\n",
+      "\n",
+      "#(ii) Power levels\n",
+      "#Power available at source\n",
+      "Pavs=(sqrt(2)*Vrms)**2/(8*Z0) \n",
+      "print 'Power available at source: %0.3f'%Pavs,'W'\n",
+      "\n",
+      "Pl=9.4*Pavs \n",
+      "#Power available at input\n",
+      "Pin=Pl/13.5 \n",
+      "print 'Power available at input: %0.3f'%Pin,'W'\n",
+      "\n",
+      "#(iii) VSWRs\n",
+      "M1=Pin/Pavs \n",
+      "M2=Pl/(9.6*Pavs) \n",
+      "\n",
+      "Tin1=sqrt(1-M1) \n",
+      "Tout1=sqrt(1-M2) \n",
+      "\n",
+      "vswrin=(1+Tin1)/(1-Tin1) \n",
+      "print 'Input VSWR: %0.3f'%vswrin\n",
+      "vswrout=(1+Tout1)/(1-Tout1) \n",
+      "print 'Output VSWR: %0.3f'%vswrout\n",
+      "\n",
+      "#Calculations for gain are done wrong in book, hence answers dont match"
+     ],
+     "language": "python",
+     "metadata": {},
+     "outputs": [
+      {
+       "output_type": "stream",
+       "stream": "stdout",
+       "text": [
+        "Transducer Gain: 13.553\n",
+        "Available power Gain: 14.291\n",
+        "Power Gain: 16.803\n",
+        "Power available at source: 0.500 W\n",
+        "Power available at input: 0.348 W\n",
+        "Input VSWR: 3.455\n",
+        "Output VSWR: 1.337\n"
+       ]
+      }
+     ],
+     "prompt_number": 20
+    }
+   ],
+   "metadata": {}
+  }
+ ]
+}
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