Journal
FRONTIERS IN PHYSICS
Volume 9, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fphy.2021.696318
Keywords
Waveguide; micro metal additive manufacturing; low-loss slotted waveguide; millimeter wave measurement; micromachining
Categories
Funding
- National Natural Science Foundation of China [62001367, 61601360, 61801367]
- China Postdoctoral Science Foundation [2019M663715]
- NSFC of Shaanxi Province [2020JQ-076]
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This paper discusses the design, fabrication, and measurement techniques of low-loss slotted waveguides made using micro metal additive manufacturing. Straight waveguides in WR-3.4 and WR-2.2 bands were fabricated and tested, showing low insertion loss per unit length.
This paper reports the design, fabrication and measurement techniques for a set of low-loss slotted waveguides. The waveguides are fabricated based on a micro metal additive manufacturing technology. They were fabricated layer by layer in one piece without the need of post-fabrication assembly. As examples, straight waveguides in WR-3.4 (220-330 degrees GHz) and WR-2.2 (330-500 degrees GHz) bands were fabricated and tested. Measurement results show the insertion loss per unit length is 0.0615-0.122 degrees dB/mm and 0.116-0.281 degrees dB/mm, respectively.
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