A rectangular horn antenna has an aperture area of 3λ × 2λ. If the – McqOptions

MCQOPTIONS

1.	A rectangular horn antenna has an aperture area of 3λ × 2λ. If the aperture efficiency of an antenna is 90%, then the directivity of the antenna is:
A.	19 dB
B.	17.1 dB
C.	13 dB
D.	21.1 dB
Answer» C. 13 dB

Discussion

No Comment Found

Related MCQs

Low is the G/T ratio of an antenna, higher is its efficiency.a) Trueb) False 10._________ has a constant power spectral density.
If an antenna has a directivity of 16 and is operating at a wavelength of λ, then the maximum effective aperture efficiency is:
A rectangular horn antenna has an aperture area of 3λ × 2λ. If the aperture efficiency of an antenna is 90%, then the directivity of the antenna is:
A rectangular horn antenna has an aperture area of 3λ × 2λ. Then the maximum directivity that can be achieved by this rectangular horn antenna is:
LOW_IS_THE_G/T_RATIO_OF_AN_ANTENNA,_HIGHER_IS_ITS_EFFICIENCY.?$
_________ has a constant power spectral density.$
The noise temperature of an antenna is given by the expression?
With an increase in operating frequency, the background noise temperature:
A resistor is operated at a temperature of 300 K, with a system bandwidth of 1 MHz then the noise power produced by the resistor is:
If an antenna has a directivity of 16 and is operating at a wavelength of ‚âà√≠¬¨‚Ñ¢, then the maximum effective aperture efficiency is:$