Space Mapping Post-fabrication Tuning of 3D Printed Air-filled Waveguide Filter

Li, Song1,2; Fan, Xiaolin1; Laforge, Paul D.1; Cheng, Qingsha S.2

10.1109/MWSYM.2017.8058949

2017

0149-645X

978-1-5090-6361-1

2017 IEEE MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS)

0

1635-1637

4-9 June 2017

Honololu, HI, United states

345 E 47TH ST, NEW YORK, NY 10017 USA

IEEE

In this paper, a fast post-fabrication tuning process based on the space mapping technique is proposed for tuning 3D-printed air-filled waveguide filters with fabrication tolerances and insertion loss. The surrogate modelling and parameter extraction processes for post-fabricated filters are discussed. The tuning algorithm is presented in detail. To validate the proposed method, it is applied to a metallic air filled X-band iris waveguide filter fabricated using selective laser sintering (SLS) technology. The target filter is fabricated in an irregular process in which it is split into three sections with extra flanges for connection after fabrication. This process significantly reduces the time and cost to fabricate a 5 inch long filter using 3D printing. But it also results in extra alignment tolerances and deteriorated return loss. By applying the tuning algorithm, we are able to significantly improve the return loss in just one iteration.

space mapping 3D printing tunable filter waveguide filter post-fabrication tuning surrogate modeling

其他

英语

CPCI-S ; EI

Engineering ; Telecommunications

Engineering, Electrical & Electronic ; Telecommunications

WOS:000425241500441

20174404359590

3D printers ; Air filters ; Bandpass filters ; Circular waveguides ; Fabrication ; Fuel additives ; Iterative methods ; Laser heating ; Mapping ; Microwave filters ; Parameter extraction ; Sintering

Surveying:405.3 ; Air Pollution Control:451.2 ; Electric Filters:703.2 ; Waveguides:714.3 ; Laser Applications:744.9 ; Printing Equipment:745.1.1 ; Chemical Agents and Basic Industrial Chemicals:803 ; Numerical Methods:921.6 ; Statistical Methods:922

Web of Science

1.Univ Regina, Fac Engn & Appl Sci, Regina, SK, Canada
2.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China

Li, Song,Fan, Xiaolin,Laforge, Paul D.,et al. Space Mapping Post-fabrication Tuning of 3D Printed Air-filled Waveguide Filter[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2017:1635-1637.