Abstract
This paper presents a waveguide cavity filter fabricated in metal by three-dimensional screen-printing technology. The bandpass filter operates at 300 GHz with a fractional bandwidth of 9%. The filter has a back-to-back structure formed of five capacitively coupled waveguide cavities and two right-angle bends. The filter was made of tungsten-copper (W-Cu) and it was additively built, forming a monolithic device. The as-printed filter initially had a slight curvature that was later straightened using heat treatment to allow better connection between the device and the flanges of the test ports. The measured minimum bandpass insertion loss was 3 dB, with a return loss better than 11 dB. This paper also presents characterization results of the manufactured samples using X-ray computer tomography and optical microscopy.
Original language | English |
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Title of host publication | 2022 52nd European Microwave Conference (EuMC) |
Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
Pages | 302-305 |
Number of pages | 4 |
ISBN (Electronic) | 9782874870699 |
ISBN (Print) | 9781665458818 (PoD) |
DOIs | |
Publication status | Published - 31 Oct 2022 |
Event | 52nd European Microwave Conference, EuMC 2022 - Milan, Italy Duration: 27 Sept 2022 → 29 Sept 2022 |
Publication series
Name | European Microwave Conference |
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ISSN (Print) | 2325-0305 |
Conference
Conference | 52nd European Microwave Conference, EuMC 2022 |
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Country/Territory | Italy |
City | Milan |
Period | 27/09/22 → 29/09/22 |
Bibliographical note
Publisher Copyright:© 2022 European Microwave Association (EuMA).
Keywords
- 3D screen printing
- additive manufacturing
- H-band
- mm-wave bandpass filter
- waveguide
ASJC Scopus subject areas
- Computer Networks and Communications
- Hardware and Architecture
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Radiation