Additively Manufactured Interdigital Filters for Ultra-Wideband Radar
In this paper, we present the development of two ultra-wideband (UWB) inter-digital cavity filters manufactured with an additive technique. We employed a selective laser melting process with stainless steel via a "flipping and fixturing"approach to achieve dimensional accuracy and frequency selectivity (no post-fabrication tuning) comparable to that of conventional micromachining. Both filters provide 2 GHz of instantaneous bandwidth. Their center operating frequencies are 3.75 GHz and 6 GHz, respectively. This paper presents design and fabrication details, a discussion of the measured characteristics of both filters, and a performance comparison with respect to subtractively manufactured parts.
F. Rodriguez-Morales et al., "Additively Manufactured Interdigital Filters for Ultra-Wideband Radar," Proceedings of the IEEE Radio and Wireless Symposium (2021, San Diego, CA), pp. 137-140, Institute of Electrical and Electronics Engineers (IEEE), Jan 2021.
The definitive version is available at https://doi.org/10.1109/RWS50353.2021.9360358
IEEE Radio and Wireless Symposium, RWS 2021 (2021: Jan. 17-22, San Diego, CA)
Mechanical and Aerospace Engineering
Keywords and Phrases
additive manufacturing; Interdigital filters; UWB radar
International Standard Book Number (ISBN)
International Standard Serial Number (ISSN)
Article - Conference proceedings
© 2021 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.
22 Jan 2021