@inproceedings{a9e0c259875d4ba787938be641cbe641,
title = "3D printed periodic structures in a horn antenna for side-lobe reduction using direct metal laser sintering",
abstract = "The research presents a 3D metal printed X-band (8.2-12.4 GHz) horn antenna with side-lobe reduction, achieved by printing pyramidal periodic structures on the inner faces of the antenna{\textquoteright}s E-plane. The 3D pyramidal periodic structures result in the suppression of the surface current and hence reduce the side-lobes of the horn antenna. The placement of the periodic structures has been optimized using commercially available electromagnetic simulation software, CST (Computer Simulation Technology), not only for reducing side-lobes, but also for successful 3D metal printing. The beam efficiency of the proposed antenna was measured to be 98.5% at the selected frequency of 12.4 GHz, with an improvement of 8% over the 90.4% simulated beam efficiency of the conventional horn antenna without any periodic structures. The antenna is fabricated using the Direct Metal Laser Sintering (DMLS) technique using Maraging Steel, MS1, on an EOSINT M280 system.",
keywords = "3D printing, Additive Manufacturing, Horn antenna, Periodic structures, Side-lobe reduction",
author = "Deepak Shamvedi and Cyril Danilenkoff and Sara Karam and Paul O{\textquoteright}Leary and Ramesh Raghavendra",
note = "Publisher Copyright: {\textcopyright} 2017 Institution of Engineering and Technology. All rights reserved.; Loughborough Antennas and Propagation Conference, LAPC 2017 ; Conference date: 13-11-2017 Through 14-11-2017",
year = "2017",
doi = "10.1049/cp.2017.0244",
language = "English",
isbn = "9781785615078",
series = "IET Conference Publications",
publisher = "Institution of Engineering and Technology",
number = "CP732",
booktitle = "IET Conference Publications",
address = "United Kingdom",
edition = "CP732",
}