a radar antenna consisting of an array of dipoles that are excited in or out of phase with each other to control beam direction and radiation pattern without moving the antenna.
Compare (def 3).
an array of radio antennae connected together to form a single antenna. The beam produced can be steered across the sky by adjusting the phases of the signals. The absence of moving parts enables the beams to be steered very rapidly, making it useful in radar
[feyz-doun] /ˈfeɪzˌdaʊn/ noun 1. an act or instance of phasing down; gradual reduction.
- Phase encoded
storage (PE) A recording method used for 1600 BPI magnetic tapes. Compare NRZI, GCR. (1996-02-03)
- Phase i block
phase I block n. Inhibition of nerve impulse transmission across the myoneural junction associated with depolarization of the motor endplate, as in the muscle paralysis produced by succinylcholine.
- Phase ii block
phase II block n. Inhibition of nerve impulse transmission across the myoneural junction unaccompanied by depolarization of the motor endplate, as in the muscle paralysis produced by tubocurarine.