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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/EX7.8/Ex7_8.sce | |
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initial commit / add all books
Diffstat (limited to '2219/CH7/EX7.8/Ex7_8.sce')
| -rwxr-xr-x | 2219/CH7/EX7.8/Ex7_8.sce | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/2219/CH7/EX7.8/Ex7_8.sce b/2219/CH7/EX7.8/Ex7_8.sce new file mode 100755 index 000000000..bd4dabfed --- /dev/null +++ b/2219/CH7/EX7.8/Ex7_8.sce @@ -0,0 +1,29 @@ +// chapter 7 example 8
+//-----------------------------------------------------------------------------
+clc;
+clear;
+// given data
+a_l = 6; // Azimuth length in m
+n_a = 0.7; // Azimuth length efficiency
+n_e = 0.5; // elevation length efficiency
+e_l = 4; // elevation length in m
+w = 6; // width of antenna
+h = 4; // height of antenna
+lamda = 3*10^-2; // wavelength
+
+// Calculations
+Eff_A_l = a_l*n_a; // effective azimuth length
+Eff_E_l = e_l*n_e; // effective elevation length
+A = w*h // actual area
+n = n_a*n_e; // aperture efficiency
+Ae = A*n; // effective aperture
+Az_BW = lamda/Eff_A_l // Azimuth beam width
+E_BW = lamda/Eff_E_l // elevation beam width
+Az_BW_d = Az_BW*180/%pi // rad to deg conv
+E_BW_d = E_BW*180/%pi; // rad to deg conv
+G = (4*%pi*Ae)/(lamda^2); //Gain
+G_dB = 10*log10(G); // gain in dB
+
+// Output
+mprintf('Azimuth Beamwidth = %3.2f degrees\n Elevation Beamwidth = %3.2f degrees\n Gain = %3.1f dB',Az_BW_d,E_BW_d,G_dB);
+//-------------------------------------------------------------------------------
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