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G9C08:What is meant by the “main lobe” of a directive antenna?

G9C08G9C

What is meant by the “main lobe” of a directive antenna?

Direct answer summary (2023-2027 NCVEC pool)

The official correct answer for G9C08 is The direction of maximum radiated field strength from the antenna.

The key fact is The direction of maximum radiated field strength from the antenna. Match that fact to the exact condition in the question; the other choices describe a different rule, band, component, or operating situation.

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More questions in G9C

G9C01Which of the following would increase the bandwidth of a Yagi antenna?G9C02What is the approximate length of the driven element of a Yagi antenna?G9C03How do the lengths of a three-element Yagi reflector and director compare to that of the driven element?G9C04How does antenna gain in dBi compare to gain stated in dBd for the same antenna?G9C05What is the primary effect of increasing boom length and adding directors to a Yagi antenna?G9C07What does “front-to-back ratio” mean in reference to a Yagi antenna?