Which of the following feed line contains two different substrates separated by a ground plane?(a) Microstrip line feed(b) Coaxial feed(c) Aperture coupling(d) Proximity CouplingThe question was asked by my college director while I was bunking the class.The query is from Feed Methods in section Slot & Microstrip Antenna of Antennas

Which of the following feed line contains two different substrates sep

1.	Which of the following feed line contains two different substrates separated by a ground plane?(a) Microstrip line feed(b) Coaxial feed(c) Aperture coupling(d) Proximity CouplingThe question was asked by my college director while I was bunking the class.The query is from Feed Methods in section Slot & Microstrip Antenna of Antennas
Answer» The correct ANSWER is (c) Aperture COUPLING To ELABORATE: In Aperture coupling, the ground plane separates two different SUBSTRATES. In Microstripline feed, the feed is connected to the patch like a CONDUCTING strip. The coaxial feed consists an inner conductor attached to the patch and ground plane to the outer conductor. The length of stub and length to width ratio of patch is used for matching in proximity coupling.

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