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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /2219/CH7/EX7.2 | |
| download | Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.gz Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.tar.bz2 Scilab-TBC-Uploads-b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b.zip | |
initial commit / add all books
Diffstat (limited to '2219/CH7/EX7.2')
| -rwxr-xr-x | 2219/CH7/EX7.2/Ex7_2.sce | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/2219/CH7/EX7.2/Ex7_2.sce b/2219/CH7/EX7.2/Ex7_2.sce new file mode 100755 index 000000000..3a8f569d5 --- /dev/null +++ b/2219/CH7/EX7.2/Ex7_2.sce @@ -0,0 +1,17 @@ +// chapter 7 example 2
+//-----------------------------------------------------------------------------
+clc;
+clear;
+// given data
+Rr = 72; // Radiation resistance in ohms
+Rl = 8; // Loss resistance in ohms
+Ap = 27; // power gain
+
+// Calculations
+n = Rr/(Rr + Rl); // radiation efficiency
+D = Ap/n; // Directivity
+D_dB = 10*log10(D); // directivity in dB
+
+// Output
+mprintf('Directivity = %3.2f dB',D_dB );
+//------------------------------------------------------------------------------
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