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Diffstat (limited to '3773/CH15/EX15.1/Ex15_1.sce')
-rw-r--r-- | 3773/CH15/EX15.1/Ex15_1.sce | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/3773/CH15/EX15.1/Ex15_1.sce b/3773/CH15/EX15.1/Ex15_1.sce new file mode 100644 index 000000000..505688201 --- /dev/null +++ b/3773/CH15/EX15.1/Ex15_1.sce @@ -0,0 +1,23 @@ +//Chapter 15: Antennas for Special Applications +//Example 15-2.1 +clc; + +//Variable Initialization +frequency = 100e3 //Frequency (Hz) +height = 150 //Height of antenna(m) +RL = 2 //Loss resistance (ohm) +c = 3e8 //Speed of light (m/s) + +//Calculations +wave_lt = c/frequency //Wavelength (m) +hp = height/wave_lt //Antenna (physical) height (lambda) +he = hp/2 //Effective height (lambda) + +Rr = 400*(hp**2) //Radiation resistance (ohm) + +R_E = Rr/(Rr+RL) //Radiation efficiency (unitless) + +//Results +mprintf("The Effective height of the antenna is %.3f lambda", he) +mprintf("\nThe Radiation resistance for 150m vertical radiator is %d ohm", Rr) +mprintf("\nThe radiation efficiency is %.2f or %.2f percent", R_E,R_E*100) |