A 3-D Printed Lightweight X-Band Waveguide Filter Based on Spherical Resonators

Cheng Guo; Xiaobang Shang; Michael J. Lancaster; Jun Xu

doi:10.1109/LMWC.2015.2427653

A 3-D Printed Lightweight X-Band Waveguide Filter Based on Spherical Resonators

Cheng Guo
, Xiaobang Shang
, Michael J. Lancaster
, Jun Xu

Research output: Contribution to journal › Article › peer-review

72 Citations (Scopus)

1303 Downloads (Pure)

Abstract

A fifth order X-band waveguide bandpass filter, based on spherical resonators, has been designed, and fabricated by 3-D printing. In comparison with rectangular waveguide, spherical resonators have a higher unloaded quality factor, but at the same time suffer from closer higher order modes. In this letter, a special topology has been proposed to relieve the impact of the first three higher order modes in the resonator and ultimately to achieve a good out-of-band rejection. Stereolithography based 3-D printing is used to build the filter structure from polymer and a 25 microns thick copper layer is deposited to the filter. The measurement result of the filter has an excellent agreement with the simulations. The filter is also considerably lighter than a similar metal filter.

Original language	English
Article number	7115191
Pages (from-to)	442-444
Number of pages	3
Journal	IEEE Microwave and Wireless Components Letters
Volume	25
Issue number	7
Early online date	1 Jun 2015
DOIs	https://doi.org/10.1109/LMWC.2015.2427653
Publication status	Published - Jul 2015

Bibliographical note

This paper won the 2017 Tatsuo Itoh Prize of the IEEE Microwave Theory and Techniques Society. This award recognizes the most significant contribution by a published paper in the IEEE Microwave and Wireless Components Letters Journal

Keywords

3-D printing
Filter
spherical resonators
stereolithography
waveguide

ASJC Scopus subject areas

Electrical and Electronic Engineering
Condensed Matter Physics

Access to Document

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Guo_et_al_A_3-D_printed_lightweight_X-band_waveguide_IEEE_Microwave_and_Wireless_Components_Letters_2015
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http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=7115191Licence: None: All rights reserved

Terahertz Micromachined Resonator Superstructures
Lancaster, M. (Principal Investigator), Gardner, P. (Co-Investigator) & Huang, F. (Co-Investigator)
Engineering & Physical Science Research Council
1/06/10 → 30/11/13
Project: Research Councils

Cite this

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title = "A 3-D Printed Lightweight X-Band Waveguide Filter Based on Spherical Resonators",

abstract = "A fifth order X-band waveguide bandpass filter, based on spherical resonators, has been designed, and fabricated by 3-D printing. In comparison with rectangular waveguide, spherical resonators have a higher unloaded quality factor, but at the same time suffer from closer higher order modes. In this letter, a special topology has been proposed to relieve the impact of the first three higher order modes in the resonator and ultimately to achieve a good out-of-band rejection. Stereolithography based 3-D printing is used to build the filter structure from polymer and a 25 microns thick copper layer is deposited to the filter. The measurement result of the filter has an excellent agreement with the simulations. The filter is also considerably lighter than a similar metal filter.",

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A 3-D Printed Lightweight X-Band Waveguide Filter Based on Spherical Resonators

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

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Projects

Terahertz Micromachined Resonator Superstructures

Cite this