cardioid reception pattern

Игры ⚽ Нужна курсовая?

Loop antenna — A shortwave loop antenna A loop antenna is a radio antenna consisting of a loop (or loops) of wire, tubing, or other electrical conductor with its ends connected to a balanced transmission line. Within this physical description there are two very … Wikipedia
Driven element — Active element redirects here. For the devices used in electronic circuits, see active component. A Yagi antenna with one driven element (A) called a folded dipole, and 5 parasitic elements (B and C). A feed line leading to the receiver (not… … Wikipedia
Null (physics) — In physics a null is a point in a field where the field quantity is zero as the result of two or more opposing quantities completely cancelling each other. The field may be scalar, vector or tensor in nature. Common situations where nulls arise… … Wikipedia

Academic dictionaries and encyclopedias