initial commit / add all books

2 files changed, 33 insertions, 0 deletions

diff --git a/2863/CH6/EX6.1/ex6_1.sce b/2863/CH6/EX6.1/ex6_1.sce
new file mode 100755
index 000000000..e18dc42bb
--- /dev/null
+++ b/2863/CH6/EX6.1/ex6_1.sce
@@ -0,0 +1,20 @@
+//chapter 6

+//horn antenna

+printf("\n");

+Ae=10;

+del=0.2;

+p=Ae^2/(8*del);

+del1=0.375;

+Thetae=2*atan((Ae/(2*p)))*180/(%pi);//flare angle

+Thetah=2*acos(p/(p+del1))*180/(%pi);

+Ah=2*p*tan(((Thetah*(%pi)/180)/2));

+printf(" the length is %gm",p);

+printf("\n the angle ThetaE is %g degree",Thetae);

+printf("\n the angle ThetaH is %g degree",Thetah);

+printf("\n the H plane aperture is %g",Ah);

+HPBWH=67/Ah;

+HPBWE=56/Ae;

+Ddb=10*log10((7.5*Ae*Ah));

+printf("\n the HPBWE is %g degree",HPBWE);

+printf("\n the HPBWH is %g degree",HPBWH);

+printf("\n the Directive gain in db is %gdb",Ddb);   

diff --git a/2863/CH6/EX6.2/ex6_2.sce b/2863/CH6/EX6.2/ex6_2.sce
new file mode 100755
index 000000000..fffc3c682
--- /dev/null
+++ b/2863/CH6/EX6.2/ex6_2.sce
@@ -0,0 +1,13 @@
+//chapter 6

+//may june 2009

+//parabolic reflector antenna

+printf("\n");

+BWFN=10;

+f=3*10^9;

+c=3*10^8;

+lamda=c/f;

+d=140*lamda/(BWFN);

+printf("the diameter d is %gm",d);

+//For circular parabolidal antenna

+Ae=((%pi)*(d^2))/4;

+printf("\nthe effective aperture is %gm^2",Ae);