Ideally polarizable electrode is contrasted with ideally non-polarizable electrode, for which a faradic current can freely pass (without polarization).
By emitting a mixture of polarizations and using receiving antennas with a specific polarization, several images can be collected from the same series of pulses.
An elliptically polarized wave may be resolved into two linearly polarized waves in phase quadrature, with their polarization planes at right angles to each other.