What is meant by the “main lobe” of a directive antenna?
The magnitude of the maximum vertical angle of radiation
The point of maximum current in a radiating antenna element
The maximum voltage standing wave point on a radiating element
The direction of maximum radiated field strength from the antenna✓Правильный ответ
Объяснение
The main lobe is a feature of the radiation pattern in space: the lobe containing the direction in which the radiated field strength is greatest. The choices about current and voltage maxima describe conditions on the element, not the pattern.