Open AccessLinear four-element cylindrical helix antenna array in boreside and scanning radiation modes
Author(s) -
Yu. A. Andreev,
V. I. Koshelev
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1843/1/012001
Subject(s) - antenna (radio) , optics , helical antenna , radiation pattern , equidistant , physics , excitation , helix (gastropod) , pulse (music) , geometry , antenna factor , mathematics , electrical engineering , engineering , quantum mechanics , ecology , detector , snail , biology
A cylindrical equidistant helix antenna has been created. The helix geometry of the antenna determined its central frequency of the operating band, equal to 1 GHz. This frequency corresponds to the maximum spectra of a bipolar voltage pulse with duration of 1 ns. Helixes identical to those of a single antenna were used in horizontal four-element linear arrays. Antenna arrays with different periods of d were studied in the axial mode with simultaneous excitation of elements by a bipolar voltage pulse of 1 ns duration and in the mode of scanning at a fixed angle in the horizontal plane. Experimental measurements were carried out in the frequency and time domains.