Merge pull request #1 from prashantsinalkar/masterHEADmaster

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diff --git a/Transmission_Lines_And_Networks_by_U_Sinha/7-Waveguides.ipynb b/Transmission_Lines_And_Networks_by_U_Sinha/7-Waveguides.ipynb
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+{
+"cells": [
+ {
+		   "cell_type": "markdown",
+	   "metadata": {},
+	   "source": [
+       "# Chapter 7: Waveguides"
+	   ]
+	},
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.1: Calculating_critical_and_guide_wavelengths.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc;\n",
+"c=3*(10^8);\n",
+"f=3000*(10^8);\n",
+"lo=c/f;\n",
+"l=lo*(10^4);\n",
+"m=1;n=0;a=7.62;\n",
+"lc=2*a;\n",
+"printf('-Critical wavelength = %f cm\n',lc);\n",
+"lg=sqrt((l*l*lc*lc)/((lc*lc)-(l*l)));\n",
+"printf('-Guide wavelength = %f cm',round(lg*10)/10);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.2: Finding_the_value_of_the_dominant_mode.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc\n",
+"a=3;\n",
+"lc=2*a;\n",
+"Zs=500;n=377;c=3*(10^8);\n",
+"lo=sqrt(1-((n/Zs)^2))*lc;\n",
+"f=c/lo;\n",
+"f1=f/(10^7);\n",
+"printf('Frequency of dominant mode = %f GHz',round(f1*100)/100);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.3: EX7_3.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc\n",
+"a=4.5;b=3;f=9*(10^9);c=3*(10^8);n=377\n",
+"lo=c/f;\n",
+"l=lo*(10^2);\n",
+"lc=2*a;\n",
+"printf('(i)Cutoff wavelegth = %f cm\n',lc);\n",
+"lg=l /(sqrt(1-((l/lc)^2)));\n",
+"printf('(ii)Guide wavelength = %f cm\n',fix(lg*100)/100);\n",
+"Vp=(lg/l)*c*10^-8;\n",
+"printf('(iii)Phase velocity = %f * 10^8 m/sec\n',fix(Vp*100)/100);\n",
+"Vg=(l/lg)*c*10^-8;\n",
+"printf('   Group velocity = %f * 10^8 m/sec\n',round(Vg*100)/100);\n",
+"Z=n/(sqrt(1-((l/lc)^2)));\n",
+"printf('(iv)Characteristic impedance = %f ohm',fix(Z));"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.4: Calculating_voltage_attenuation.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc;\n",
+"a=1;c=3*(10^8);f=(10^9);d=25;\n",
+"lc=2*a;\n",
+"lo=c/f;\n",
+"l=lo/(10^2);\n",
+"att=(54.55/lc)*d;\n",
+"printf('Total attenuation = %f db',round(att*100)/100);\n",
+"//the difference in result  is due to erroneous value in textbook.\n",
+"disp('The difference in result is due to erroneous value in textbook')"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.5: Calculating_group_and_phase_velocities_and_phase_constant.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc;\n",
+"c=3*(10^8);f=3000*(10^6);a=.0722;\n",
+"lo=c/f;\n",
+"lc=2*a;\n",
+"lg=lo/(sqrt(1-((lo/lc)^2)));\n",
+"Vp=(lg/lo)*c*10^-8;\n",
+"printf('-Phase velocity Vp = %f * 10^8 m/sec\n',round(Vp*10)/10);\n",
+"Vg=(lo/lg)*c*10^-8;\n",
+"printf('-Group velocity Vg = %f * 10^8 m/sec\n',round(Vg*10)/10);\n",
+"b=(2*%pi)/lg;\n",
+"printf('-Phase constant = %f radians/m',round(b));"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.6: Calculating_cut_off_frequencies.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc\n",
+"d=5;c=3*(10^8);\n",
+"lo=1.706*d;\n",
+"f=c/lo;\n",
+"ff=f/(10^7);\n",
+"printf('(i)Cutoff frequency for TE11 = %f GHz\n',round(ff*100)/100);\n",
+"l=1.306*d;\n",
+"fc=c/l;\n",
+"ffc=fc/(10^7);\n",
+"printf('(ii)Cutoff frequency for TE01 = %f GHz',round(ffc*10)/10);"
+   ]
+   }
+,
+{
+		   "cell_type": "markdown",
+		   "metadata": {},
+		   "source": [
+			"## Example 7.7: EX7_7.sce"
+		   ]
+		  },
+  {
+"cell_type": "code",
+	   "execution_count": null,
+	   "metadata": {
+	    "collapsed": true
+	   },
+	   "outputs": [],
+"source": [
+"clear;\n",
+"clc;\n",
+"c=3*(10^8);f=8*(10^9);r=2.5;h=1.84;n=377;\n",
+"l=c/f;\n",
+"lo=l*(10^2);\n",
+"lc=2*%pi*r/h;\n",
+"printf('-Cutoff wavelength = %f cm\n',round(lc*100)/100);\n",
+"lp=lo/(sqrt(1-((lo/lc)^2)));\n",
+"printf('-Guide wavelength = %f cm\n',round(lp*100)/100);\n",
+"Zo=n/(sqrt(1-((lo/lc)^2)));\n",
+"printf('-Characteristic wave impedance = %f ohm',fix(Zo*10)/10);"
+   ]
+   }
+],
+"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
+}