A 3D Printed V-Band Twisted Monolithic Waveguide Bandpass Filter

Talal Skaik1; Daxin Wang1; Peter Hunyor2; Hui Wang2; Peter G. Huggard2; Thomas Starke3; Qingfeng Zhang4; Yi Wang1

10.23919/EuMC58039.2023.10290574

2023

53rd European Microwave Conference (EuMC)

979-8-3503-4739-5

2023 53rd European Microwave Conference (EuMC)

231-234

19-21 Sept. 2023

Berlin, Germany

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

IEEE

This paper presents a monolithic 3D printed twisted waveguide bandpass filter. The component integrates filtering and polarization rotation functionalities. It operates with a center frequency of 60 GHz and a fractional bandwidth (FBW) of 5%. The filter was made from stainless steel using micro laser sintering (MLS) process. It was designed and printed in such a way that no internal support structures are required. The measured response of the as-printed filter showed a very decent frequency response with a minimum insertion loss of 1.3 dB and a return loss better than 18.7 dB without any tuning. The filter was then gold coated using electroless process which significantly improved the insertion loss to a minimum of 0.3 dB. The results demonstrate the capability of the high-precision 3D metal printing technology in fabricating complex geometries that are challenging using conventional milling techniques, as well as an effective plating technique.

Band-pass filters Geometry Gold Three-dimensional displays Insertion loss Waveguide lasers Plating

其他

英语

EI ; CPCI-S

Engineering ; Physics ; Telecommunications

Engineering, Electrical & Electronic ; Physics, Applied ; Telecommunications

WOS:001101795000058

20234715101657

3D printing ; Bandwidth ; Frequency response ; Gold coatings ; Insertion losses ; Laser heating ; Sintering ; Waveguide filters

Electric Filters:703.2 ; Waveguides:714.3 ; Information Theory and Signal Processing:716.1 ; Laser Applications:744.9 ; Printing Equipment:745.1.1 ; Coating Materials:813.2

IEEE

1.School of Electronic, Electrical and Systems Engineering, University of Birmingham, UK
2.STFC Rutherford Appleton Laboratory, RAL Space, UK
3.3D MicroPrint GmbH, Germany
4.Department of Electrical and Electronic Engineering, Southern University of Science and Technology, China

Talal Skaik,Daxin Wang,Peter Hunyor,et al. A 3D Printed V-Band Twisted Monolithic Waveguide Bandpass Filter[C]. 345 E 47TH ST, NEW YORK, NY 10017 USA:IEEE,2023:231-234.