initial commit / add all books

1 files changed, 22 insertions, 0 deletions

diff --git a/608/CH44/EX44.17/44_17.sce b/608/CH44/EX44.17/44_17.sce
new file mode 100755
index 000000000..12e9fcee1
--- /dev/null
+++ b/608/CH44/EX44.17/44_17.sce
@@ -0,0 +1,22 @@
+//Problem 44.17: A low-loss transmission line has a mismatched load such that the reflection coefficient at the termination is 0.2/_-120°. The characteristic impedance of the line is 80 ohm. Calculate (a) the standing-wave ratio, (b) the load impedance, and (c) the incident current flowing if the reflected current is 10 mA.
+
+//initializing the variables:
+rp = 0.2; 
+thetap = -120; // in degrees
+Zo = 80; // in ohm
+Ir = 0.01; // in Amperes
+
+//calculation:
+//reflection coefficient
+p = rp*cos(thetap*%pi/180) + %i*rp*sin(thetap*%pi/180)
+//standing-wave ratio,
+s = (1 + rp)/(1 - rp)
+//load impedance ZR 
+ZR = Zo*(1 - p)/(1 + p)
+//incident current
+Ii = Ir*(s + 1)/(s - 1)
+
+printf("\n\n Result \n\n")
+printf("\n standing-wave ratio, s is %.1f",s)
+printf("\n load impedance ZR is %.2f +(%.2f)i ohm",real(ZR), imag(ZR))
+printf("\n incident current is %.3f A",Ii)