SLA printed horn antenna with filtering network based on dual‐mode ellipsoid resonator

Abstract

This paper presents a horn antenna with a 5th-order dual-mode ellipsoid resonator filtering network, fabricated by stereo lithography apparatus 3-D printing technic. The filtering part employs two dimpled ellipsoid dual-mode resonators, operating at the fundamental TM 101 mode. Compared to the filters employing cylindrical resonators with tuning posts, the proposed filtering network is with lower loss (due to the high Q u resonator) and the performance is less sensitive to the fabrication errors. The antenna was demonstrated at Ku band (12-18 GHz), with a measured RL >10 dB across the passband of 14.6-15.4 GHz. The measured gain of the antenna is 11.4 dBi at 15 GHz and maximum in-band gain variation is 0.4 dB.

Investigation and Optimization of the Impact of Printing Orientation on Mechanical Properties of Resin Sample in the Low-Force Stereolithography Additive Manufacturing

“…Thus, SLA has been widely used in manufacturing dental prostheses by Yoo et al [ 9 ], and the overall 3D accuracy of all 3D-printed resin models showed clinically acceptable ranges. A horn antenna with a 5th-order dual-mode ellipsoid resonator filtering network was developed by Liang et al [ 10 ] through SLA, which achieved a lower loss and higher measured gain of antenna function. Zhao et al [ 11 ] fabricated the periodical and ordered polymer–nickel-coated composite materials with a diamond-structure microlattice and various contents of phosphorus via electroless nickel–phosphorus (Ni–P) coating onto the diamond-structured polymeric templates using SLA, the maximum compressive strength of which was 2.1 times higher than that of polymer templates.…”