1.9-THz Multiflare Angle Horn Optimization for Space Instruments
Abstract
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
Keywords
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