1 files changed, 18 insertions, 0 deletions
diff --git a/605/CH2/EX2.2/2_2.sce b/605/CH2/EX2.2/2_2.sce
new file mode 100755
index 000000000..dc5944006
--- /dev/null
+++ b/605/CH2/EX2.2/2_2.sce
@@ -0,0 +1,18 @@
+//impedance of transmission line
+Za=73
+//impedance of antenna
+Zo=50
+//radiation efficiency
+ecd=1
+I=integrate('(sin(x))^4','x',0,%pi)*2*%pi
+Do=4*%pi/I
+printf("\nDo=%.4f=%.4f dB",Do,10*log10(Do))
+//voltage reflection coefficient
+F=(Za-Zo)/(Za+Zo)
+printf("\nvoltage reflection coefficient\nF=(Za-Zo)/(Za+Zo)=%f",F)
+//mismatch efficiency of antenna
+er=1-F^2
+printf("\nmismatch efficiency of antenna\ner=1-F^2=%.4f=%.4f dB",er,10*log10(er))
+//overall gain
+Go=10*log10(Do)+10*log10(er)+10*log10(ecd)
+printf("\noverall gain\nGo=Do+er+ecd=%.4f dB",Go)
+\ No newline at end of file