polar radiation pattern

polar radiation pattern

[′pō·lər ‚rād·ē′ā·shən ‚pad·ərn] (electromagnetism) Diagram showing the relative strength of the radiation from an antenna in all directions in a given plane. (engineering acoustics) Diagram showing the strength of sound waves radiated from a loudspeaker in various directions in a given plane, or a similar response pattern for a microphone.