1.9-THz Multiflare Angle Horn Optimization for Space Instruments

N. Chahat (1) , T.J. Reck (1) , C. Jung-Kubiak (1) , T. Nguyen (2) , R. Sauleau (2) , G Chattopadhyay (1)

1 JPL - Jet Propulsion Laboratory
2 IETR - Institut d'Électronique et des Technologies du numéRique

A multiflare angle horn is optimized with an in-house software using Body of Revolution finite-difference time-domain solver (BoR-FDTD) combined with a genetic algorithm (GA). This antenna is optimized to demonstrate low cross polarization, low side-lobe level, good return loss, and excellent beam circularity over the 1700-2100-GHz frequency range. A prototype with a directivity of 31.7 dBi and a cross-polarization level below -22 dBi was measured at 1.9 THz with excellent agreement with calculation

Mots clés: Antenna; Antenna measurements; antenna radiation patterns; Arrays; body of revolution finite-difference time-domain (BoR-FDTD); body of revolution finite-difference time-domain solver; Bolometers; BoR-FDTD; BoR-MoM; finite difference time-domain analysis; frequency 1.9 THz; Gain; genetic algorithm; genetic algorithms; horn antenna; horn antennas; in-house software; low cross polarization; low side-lobe level; Measurement; multiflare angle horn optimization; Optimization; space instruments; submillimeter waves; submillimetre wave antennas; terahertz (THz); Time-domain analysis

Domaines: Electronique; Réseaux et télécommunications [cs.NI]

N. Chahat, T.J. Reck, C. Jung-Kubiak, T. Nguyen, R. Sauleau, et al.. 1.9-THz Multiflare Angle Horn Optimization for Space Instruments. IEEE Transactions on Terahertz Science and Technology, 2015, 5 (6), pp.914--921. ⟨10.1109/TTHZ.2015.2487781⟩. ⟨hal-01300893⟩