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Which of the following is used to reduce side lobe levels in aperture antenna?

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Which of the following is used to reduce side lobe levels in aperture antenna?

(a) Tapering

(b) Increasing the power

(c) Using repeaters

(d) Reducing power

I got this question in exam.

Query is from Radiation from Rectangular Aperture topic in section Aperture Antenna of Antennas

1 Answer

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Best answer
Right choice is (a) Tapering

Easiest explanation: The uniform aperture produces the high SLL under a constant phase amplitude excitation. To reduce this SLL effect, tapering is done. Tapering is done maximum at center and reduces to zero at the edges for anequivalent source distribution.

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