Novel coaxial transition for shaped coaxial horn antennas operating at millimeter wave frequencies
2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)(2022)
Abstract
This work presents a novel optimized design and analysis of a coaxial coupling structure for standard and shaped horn antennas operating at millimeter wave frequencies. A novel dielectric support structure for the inner conductor and a transition to a 2.92 mm K connector are proposed. The horn’s performance was evaluated through full-wave electromagnetic finite element method analysis performed on Ansys EM. The dimensions of the dielectric structure and transition were optimized using a multi-objective Genetic Algorithm to enhance the horn’s performance. The final design presented a frequency bandwidth greater than 45% (25–40 GHz) with a return loss exceeding 20 dB.
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Key words
frequency bandwidth,coaxial transition,shaped coaxial horn antennas,millimeter wave frequencies,optimized design,coaxial coupling structure,standard horn antennas,shaped horn antennas,inner conductor,full-wave electromagnetic finite element method analysis,dielectric support structure,Ansys EM,multiobjective genetic algorithm,frequency 25.0 GHz to 40.0 GHz
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