Design and Additive Manufacture of Multi-Tapered Coaxial Baluns
Date
2022-11-16
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
IEEE Transactions on Components, Packaging and Manufacturing Technology
Abstract
In this article, a new design method is introduced for wideband transitions from an unbalanced coaxial feed to a balanced two wire port. The device expands upon the traditional tapered coaxial balun by allowing for variations of both the inner and outer conductor radii in addition to the slot width. This multi-tapered approach provides additional design freedoms useful for realizing a wide range of impedance ratios, satisfying fixed geometrical constraints, and reducing transmission losses. A multimaterial additive manufacturing (AM) approach is described for fabricating the balun’s complex 3-D geometry. Experimental validation was conducted within the Ku -band for printed back-to-back baluns and an integrated antenna feed that combined a printed connector, a multi-tapered coaxial balun, and a spiral antenna. Simulated and measured results showed good performance over the frequency band of interest.
Description
© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. This article was originally published in IEEE Transactions on Components, Packaging, and Manufacturing Technology. The version of record is available at: https://doi.org/10.1109/TCPMT.2022.3222444
Keywords
3-D printing, additive manufacturing (AM), antenna feed, balun, impedance transformer
Citation
K. P. McParland and M. S. Mirotznik, "Design and Additive Manufacture of Multi-Tapered Coaxial Baluns," in IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 12, no. 11, pp. 1806-1815, Nov. 2022, doi: 10.1109/TCPMT.2022.3222444.