What is the principle used in slot antennas?(a) Babinet’s principle(b) Archimedes principle(c) Geo-Optics(d) Image TheoryI have been asked this question by my college director while I was bunking the class.The query is from Types in division Slot & Microstrip Antenna of Antennas

What is the principle used in slot antennas?(a) Babinet’s principle(

1.	What is the principle used in slot antennas?(a) Babinet’s principle(b) Archimedes principle(c) Geo-Optics(d) Image TheoryI have been asked this question by my college director while I was bunking the class.The query is from Types in division Slot & Microstrip Antenna of Antennas
Answer» Right choice is (a) Babinet’s principle The best I can explain: Babinet’s principle is used in slot antenna. It relates the fields obtained directly by slot antenna with CORRESPONDING complementary strip dipoles. It relates transmission/reception characteristics like radiation PATTERN, gain, and INPUT impedance of those TWO complementary antennas. Geo-optics is used in reflectors and Image THEORY in Corner reflectors.

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