The Astronautics Vocabulary is a glossary of terms that pertain to the science and technology of spaceflight. This alphabetical list can be navigated by clicking on the letters A-Z displayed on this page.
Definition: In antennas and propagation, term relating to two electric field polarisations at right angles to each other. In the case of circular or elliptical polarisation, the electric field can be resolved into vertical and horizontal components. The major and minor axes of an elliptical field represent orthogonal polarisation.