University of Oulu

S. Myllymäki, M. Sonkki, M. Kokkonen, A. Ghavidel, H. Ohsato and H. Jantunen, "Thermoplastic Laminate and Cordierite/Indialite Glass-Ceramic Hybrid Package for 15-GHz Operated Antennas," in IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 12, no. 4, pp. 700-703, April 2022, doi: 10.1109/TCPMT.2022.3163557

Thermoplastic laminate and cordierite/indialite glass-ceramic hybrid package for 15-GHz operated antennas

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Author: Myllymäki, S.1; Sonkki, M.1; Kokkonen, M.1;
Organizations: 1Microelectronics Research Unit, University of Oulu, 90014 Oulu, Finland
Format: article
Version: published version
Access: open
Online Access: PDF Full Text (PDF, 1.2 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2022-08-26


This work describes a novel antenna package, a combination of a four-element array and a lens antenna performing the gain of 13.5 dBi, the bandwidth of 1 GHz and the total efficiency of 72% at 15 GHz. The 2 × 2 elements array antenna was designed and fabricated using square patches with a substrate through vias and a capacitive feeding on the novel dielectric substrate combination: thermoplastic laminate and cordierite/indialite glass-ceramic. The ceramic substrate was selected regarding its impressive dielectric properties such as the relative permittivity of 6.3 and a quality factor Qf 55 400 GHz. The array antenna performed with a reflection coefficient −20 dB over the bandwidth. The cascaded array with an extended hemispherical lens antenna enhanced the gain into the certain direction with narrow beamwidth properties. The packaged antenna is demonstrated for the 5G telecommunication systems especially where low losses, high-temperature resistance, and high-temperature stability are required.

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Series: IEEE transactions on components, packaging, and manufacturing technology
ISSN: 2156-3950
ISSN-E: 2156-3985
ISSN-L: 2156-3950
Volume: 12
Issue: 4
Pages: 700 - 703
DOI: 10.1109/tcpmt.2022.3163557
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
216 Materials engineering
Funding: This work was supported by Academy of Finland 6 Genesis Flagship under Grant 318927.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
Copyright information: © 2022 The Author(s). This work is licensed under a Creative Commons Attribution 4.0 License. For more information, see