initial commit / add all books

1 files changed, 29 insertions, 0 deletions

diff --git a/728/CH4/EX4.11/Ex4_11.txt b/728/CH4/EX4.11/Ex4_11.txt
new file mode 100755
index 000000000..b9df1fc2e
--- /dev/null
+++ b/728/CH4/EX4.11/Ex4_11.txt
@@ -0,0 +1,29 @@
+//Caption:Find all modes that can propagate at 5000MHz.

+//Exa:4_11

+clc;

+clear;

+close;

+a=4;//in cm

+b=3;//in cm 

+f=5*10^9;//in Hz

+c=3*10^10;//in cm/s

+wl_o=c/f;

+//For TE waves:

+wl_c_TE01=2*b;//for TE01

+wl_c_TE10=2*a;//for TE10

+wl_c_TE11=2*a*b/sqrt(a^2+b^2);//for TE11

+if(wl_c_TE01>wl_o)

+    disp('TE01 can propagate');

+else

+    disp('TE01 cannot propagate');

+end

+if(wl_c_TE10>wl_o)

+    disp('TE10 can propagate');

+else

+    disp('TE10 cannot propagate');

+end

+if(wl_c_TE11>wl_o)

+    disp('TE11 can propagate');

+else

+    disp('TE11 cannot propagate');

+end