coded passive reflector antenna

coded passive reflector antenna

[′kōd·əd ′pas·iv ri′flek·tər an‚ten·ə]
(electromagnetism)
An object intended to reflect Hertzian waves and having variable reflecting properties according to a predetermined code for the purpose of producing an indication on a radar receiver.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.