equiangular spiral antenna

equiangular spiral antenna

[¦ē·kwē¦aŋ·gyə·lər ¦spī·rəl an′ten·ə]
(electromagnetism)
A frequency-independent broad-band antenna, cut from sheet metal, that radiates a very broad, circularly polarized beam on both sides of its surface; this bidirectional radiation pattern is its chief limitation.
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References in periodicals archive ?
Dispersive or non-dispersive antennas have been commonly used for GPR systems, such as dipole antenna, Bow-tie antenna, TEM horn antenna, Vivaldi or tapered slot antenna (TSA), and equiangular spiral antenna [2].
An example for such a case is that shown in Figure 3 for a triangular patch model of a two-arm planar equiangular spiral antenna.
From a theoretical point of view (Maxwell's equations), the planar equiangular spiral antenna is one of the simplest types of wideband planar antennas.