Effects of extreme surface roughness on 3D printed horn antenna

3D printing is an emerging technology in manufacturing. It is the long-term goal of the industry to print complex and fully functional products from cell phones to vehicles. A drawback of many 3D printing technologies is rough surface finish. It is known that metals with high surface roughness sever...

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Bibliographic Details
Published in:Electronics letters 2013-06, Vol.49 (12), p.734-736
Main Authors: Garcia, C.R, Rumpf, R.C, Tsang, H.H, Barton, J.H
Format: Article
Language:English
Subjects:
3D printed horn antenna
3D printing technologies
Antennas
Antennas and propagation
Applied sciences
cell phones
electromagnetic impact
electromagnetic wave propagation
Exact sciences and technology
extreme surface roughness
frequency 12 GHz to 15 GHz
microstrip antennas
microwave antennas
Radiocommunications
surface roughness
Telecommunications
Telecommunications and information theory
three‐dimensional printing
vehicles
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Summary:3D printing is an emerging technology in manufacturing. It is the long-term goal of the industry to print complex and fully functional products from cell phones to vehicles. A drawback of many 3D printing technologies is rough surface finish. It is known that metals with high surface roughness severely degrade the propagation of electromagnetic waves. Presented is the first known evaluation of the electromagnetic impact of the typical surface roughness in metal parts produced by electron beam melting. Two Ku-band (12–15 GHz) horn antennas were 3D printed, with different surface roughness, and compared to a standard horn antenna purchased from Pasternack.
ISSN:0013-5194
1350-911X
1350-911X
DOI:10.1049/el.2013.1528