Spiral antennas have been widely investigated over the last decades, thanks to wide operative frequency range with stable antenna parameters. With the recent advance of the additive manufacturing processes, the antenna design and realization techniques can be adapted to save production costs and time. In this contribution, a novel spiral antenna realization is investigated with an additive-oriented approach. A full-wave numerical comparison between the classical Equiangular and Archimedean spiral is presented. Wide operative bandwidth and stable antenna radiation pattern are achieved. A strong dependency of the antenna radiating efficiency by the material losses is found, thus imposing an accurate choice of the geometrical aspects of the spiral.
Additive-oriented spiral antennas with infinite Balun / Ciociola, A.; Baldazzi, E.; Madau, F.; Canestri, C.. - (2024), pp. 203-204. (Intervento presentato al convegno 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI) tenutosi a Florence; Italy) [10.1109/ap-s/inc-usnc-ursi52054.2024.10686012].
Additive-oriented spiral antennas with infinite Balun
Baldazzi, E.;
2024
Abstract
Spiral antennas have been widely investigated over the last decades, thanks to wide operative frequency range with stable antenna parameters. With the recent advance of the additive manufacturing processes, the antenna design and realization techniques can be adapted to save production costs and time. In this contribution, a novel spiral antenna realization is investigated with an additive-oriented approach. A full-wave numerical comparison between the classical Equiangular and Archimedean spiral is presented. Wide operative bandwidth and stable antenna radiation pattern are achieved. A strong dependency of the antenna radiating efficiency by the material losses is found, thus imposing an accurate choice of the geometrical aspects of the spiral.File | Dimensione | Formato | |
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