sense antenna

sense antenna

[′sens an‚ten·ə]
(electromagnetism)
An auxiliary antenna used with a directional receiving antenna to resolve a 180° ambiguity in the directional indication. Also known as sensing antenna.
References in periodicals archive ?
Influence of Side-lobe Level of the Sense Antenna on Directional Opportunity
The center antenna is a sense antenna, and the two outer antennas are approximately a quarter wavelength apart.
If the outside two antennas were rotated about the sense antenna, the rotating cardiod pattern would provide direction-of-arrival information on signals at any azimuth.