Phase array with lens array come under which feeding system?(a) Optical-feed system(b) Constrained feed system(c) Sub array feed(d) Phase shifterThis question was addressed to me in an internship interview.My doubt is from Phased Array topic in section Phased, Adaptive and Binomial Arrays of Antennas

Phase array with lens array come under which feeding system?(a) Optica

1.	Phase array with lens array come under which feeding system?(a) Optical-feed system(b) Constrained feed system(c) Sub array feed(d) Phase shifterThis question was addressed to me in an internship interview.My doubt is from Phased Array topic in section Phased, Adaptive and Binomial Arrays of Antennas
Answer» The correct option is (a) OPTICAL-feed system The best explanation: Phased array with lens or reflector arrays comes under the optical feed system. Proper aperture illumination is OBTAINED by the optical feed system. In CONSTRAINED the POWER is DIVIDED into many elements under different steps.

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