An arrangement of receivers and transmitters used in wideband holographic
imaging using a reduced number of physical antenna elements compared to
established techniques and systems. At least one of the receivers is
configured to receive the reflected signal from three or more of
transmitters, and at least one transmitter is configured to transmit a
signal to an object, the reflection of which will be received by at least
three receivers. The improved arrays are easily incorporated into
existing microwave and millimeter wave holographic imaging equipment
utilizing the existing mechanical features of this equipment, as well as
the existing wideband holographic imaging algorithms and electronics for
constructing images.