cardioid pattern

cardioid pattern

[′kärd·ē‚ȯid ‚pad·ərn]
(engineering)
Heart-shaped pattern obtained as the response or radiation characteristic of certain directional antennas, or as the response characteristic of certain types of microphones.
References in periodicals archive ?
Better still, the Yeti Pro offers four recording modes - omni-directional, cardioid pattern, stereo and a bi-directional.
If there are several symmetrical pairs of outside antennas, switching among the pairs causes the cardioid pattern to rotate, allowing calculation of the DOA of the signal.
The TEM feed is terminated at the reflector's surface by a matching structure that maintains a cardioid pattern at low frequencies.
This excitation not only yields the cardioid pattern, but produces near-constant image impedance.