SUGGESTED GUIDELINES

1. Choose a specific value of the angle 8. Now plot the gain as a function of the height kd. Repeat

the same for some other values. Specifically take 0 = 45°, 90°, 135º and choose 0 ≤ kd ≤

200 for each of these three values of the angle 9. Plot the gain at each of these three values vs. kd

and choose about 200 datapoints. (Use MATLAB to do the calculations.) You can choose any

frequency between 1 and 5 GHz which shall determine wavenumber k.

2. Model the geometry in FEKO. To do so, take the same frequency as in question 1, and select the

dipole length to be ≤ and carrying a constant current. Repeat the case of question 1 but now

the full-wave solver FEKO is used which is assumed to be more accurate than the analytical model.

Now present your results for part 1 and 2 (analytical vs. full-wave FEKO) and comment on the

accuracy of the analytical results.

3. Use the "Sommerfeld ground" option in FEKO and choose some specific values of the parameters

for the lossy ground. You can use a value for the conductivity 10-03 ≤ ≤ 12 × 10-03

Siemens/meter, and, the relative permittivity as & = 15; the permeability is Mo = 4π x

10-07 Henries/meter. (These are the data one needs to enter when using the Sommerfeld ground

option in FEKO.) Repeat the results of part 1 using the lossy ground option and compare your

results in part 3 against the ones obtained in parts 1 and 2.

4. Generate a PowerPoint document that demonstrates the limitation and validation of the analytical

formulations in the antenna height-gain factor. (For your analysis you can benchmark the FEKO

results as accurate.)