If an antenna has a main beam with both half-power beamwidths equal to 20°, its directivity (D) is nearly:

If an antenna has a main beam with both half-power beamwidths equal to

1.	If an antenna has a main beam with both half-power beamwidths equal to 20°, its directivity (D) is nearly:
A.	90.6
B.	102.5
C.	205
D.	226
Answer» C. 205

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If an antenna has a main beam with both half-power beamwidths equal to 20°, its directivity (D) is nearly:

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