University of Oulu

Kokkonen, M., Myllymäki, S., & Jantunen, H. (2020). Focal length of a low permittivity plano-convex lens at frequencies 30–600 GHz. Electronics Letters. Volume 56, Issue 5, 05 March 2020, p. 223–225.

Focal length of a low permittivity plano-convex lens at frequencies 30—600 GHz

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Author: Kokkonen, M.1; Myllymäki, S.1; Jantunen, H.1
Organizations: 1Microelectronics, University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.6 MB)
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Language: English
Published: Institution of Engineering and Technology, 2020
Publish Date: 2019-12-19


Due to interest in lenses at telecommunicatons in the lower frequency range of 30—600 GHz (5G/6G applications) sub-terahertz range lenses have started to make their appearance. Geometrical optics is typically used due to its faster calculation speed, which is faster than finite element methods (FEMs). A 30-mm plano-convex lens was simulated with a COMSOL ray tracing module and CST was used to simulate 30, 60, 300 and 600 GHz FEM simulations. Focal points were 248, 189, 180, 118 and 131 mm with CST and 253 mm with COMSOL.

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Series: Electronics letters
ISSN: 0013-5194
ISSN-E: 1350-911X
ISSN-L: 0013-5194
Volume: 56
Issue: 5
Pages: 223 - 225
DOI: 10.1049/el.2019.3158
Type of Publication: A1 Journal article – refereed
Field of Science: 114 Physical sciences
213 Electronic, automation and communications engineering, electronics
Funding: This work was supported by Academy of Finland 6 Genesis Flagship (grant no. 318927).
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © Institution of Engineering and Technology 2019. The Definitive Version of Record can be found online at: