EE 532 Project
To be submitted the last day of classes January 15th, 2008.
You know that a line source (continuous) or an array (discrete source)
have far-field patterns that are highly affected by the current excitation
distribution (or coefficient excitation). Search the literature (or use
MATLAB) to study the effect of different windows (amplitude
distribution) on the far-field parameters (HPBW, Directivity, side lobe
levels…). Take N=11 equally spaced elements for the array.
1. For uniform line source distribution/uniform array, you know that
the SLL is 13 dB,…
Hint: in MATLAB at the prompt type help window and then use these
windows to compute the following parameters from the far-field radiation
pattern:
1. Draw the radiation pattern
2. compute the directivity
3. compute the SLL
4. compute the HPBW
5. do the above for both 11 equally spaced array elements spaced 0.35
lamda and a line source with the same length. Tabulate the
computed parameters and give your opinion about the application
of each design.