Characterization of PMMA/BaTiO3 Composite Layers Through Printed Capacitor Structures for Microwave Frequency Applications

Omodara Gbotemi , Sami Myllymäki , Jani Kallioinen , Jari Juuti , Merja Teirikangas , Heli Jantunen , Marjeta Maček Kržmanc , Danilo Suvorov , Marcin Słoma , Małgorzata Jakubowska


This paper presents the extraction of microwave properties of low-temperature cured inorganic composite materials based on barium titanate (BaTiO3). These composite materials exhibit attractive features such that when the volume fraction of the filler contents varied, its electrical properties of high permittivity and moderately low loss tangent can be manipulated to suit different areas of applications. For the extraction of the permittivity and the loss tangent, three different ink particles were developed and printed on the top of interdigital-shaped microwave capacitor. The properties of the inks were extracted from measured results through computer simulations. The obtained results were verified with several types of interdigital capacitor structures of different fingers and linewidths. The effect of the thickness of the ink layer materials on the top of the capacitor structures was likewise investigated. The results show relative permittivity (ε r) values of 30, 25, and 27 for composite layers printed using inks with Pr. A shape at 67.4 wt% (percentage by weight), Pr. B shape at 66.3 wt%, and Pr. C shape at 67.1 wt% of BaTiO3, respectively, at 2 GHz. Corresponding loss tangents (tan δ) were 0.065, 0.040, and 0.025. The dielectric properties of the composite materials are influenced by the thickness variation of the ink layers on the capacitor structures. This novel capacitor composite materials would be a promising candidate for printed application in mobile telecommunication operations, especially in the frequency range of 0.5-3 GHz.
Author Omodara Gbotemi - [Oulun Yliopisto]
Omodara Gbotemi,,
, Sami Myllymäki - [Oulun Yliopisto]
Sami Myllymäki,,
, Jani Kallioinen - [Tioxide Europe Ltd.]
Jani Kallioinen,,
, Jari Juuti - [Oulun Yliopisto]
Jari Juuti,,
, Merja Teirikangas - [Oulun Yliopisto]
Merja Teirikangas,,
, Heli Jantunen - [Oulun Yliopisto]
Heli Jantunen,,
, Marjeta Maček Kržmanc
Marjeta Maček Kržmanc,,
, Danilo Suvorov - [Jozef Stefan Institute]
Danilo Suvorov,,
, Marcin Słoma (FM / IMBE)
Marcin Słoma,,
- The Institute of Metrology and Biomedical Engineering
, Małgorzata Jakubowska (FM / IMBE)
Małgorzata Jakubowska,,
- The Institute of Metrology and Biomedical Engineering
Journal seriesIEEE Transactions on Microwave Theory and Techniques, ISSN 0018-9480, (A 35 pkt)
Issue year2018
Publication size in sheets0.5
ASJC Classification2208 Electrical and Electronic Engineering; 3104 Condensed Matter Physics; 3108 Radiation
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 23-09-2019, ArticleFromJournal
Publication indicators Scopus Citations = 0; WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.956; WoS Impact Factor: 2017 = 3.176 (2) - 2017=3.603 (5)
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