The directivity of 20 turn helix having a = 12¬∞ circumference equa – McqOptions

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1.	The directivity of 20 turn helix having a = 12¬∞ circumference equal to one wavelength, will be
A.	1.8 dB
B.	6 dB
C.	12 dB
D.	18 dB
Answer» E.

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