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Effective permittivity determination procedure for 3D-printed dielectric lenses
Publikationstyp
Conference Paper
Date Issued
2025-09
Sprache
English
Author(s)
Mentzer, Rasmus Bent
Bartels, Frederike
Start Page
407
End Page
410
Citation
55th European Microwave Conference, EuMC 2025
Contribution to Conference
Publisher DOI
Publisher
IEEE
ISBN of container
978-2-8748-7080-4
This work extends the usual design process of dielectric lenses by introducing a novel procedure for determining the effective permittivity of 3D-printed dielectric lenses. A determination lens with a significant side lobe characteristic is designed to determine the effective permittivity while accounting for the specific influences of the 3D-printing process. By using the obtained permittivity value, the lens design can be optimized to achieve a desired performance. A gain accuracy of 0.15 dBi and an SLL accuracy of less than 2.2 dBi is achieved. This procedure integrates seamlessly into the dielectric lens development process, enhancing its accuracy and reliability.
Subjects
3D-printing
dielectric lens
complex permittivity measurement
material characterization
Polylactic acid (PLA)
DDC Class
621.3: Electrical Engineering, Electronic Engineering