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Energies
Volume 12
Issue 21
10.3390/en12214194
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Article

An Adiabatic Coaxial Line for Microcalorimeter Power Measurements in Wireless Communication for Smart Grid †

by
Zeljko Martinovic
1,*,
Martin Dadic
2,
Branimir Ivsic
2,3 and
Roman Malaric
2
1
Valine Consulting, Zagreb 10000, Croatia
2
Department of Electrical Engineering and Fundamentals, Faculty of Electrical Engineering and Computing, University of Zagreb, Zagreb 10000, Croatia
3
Radio Development Unit, Research and Development Centre, Ericsson Nikola Tesla, Zagreb 10000, Croatia
*
Author to whom correspondence should be addressed.
†
This paper is an extended version of our paper published in 2019, 2nd International Colloquium on Smart Grid Metrology (SMAGRIMET), Split, 9–12 April 2019, pp. 131–134.
Energies 2019, 12(21), 4194; https://doi.org/10.3390/en12214194
Submission received: 16 September 2019 / Revised: 24 October 2019 / Accepted: 1 November 2019 / Published: 3 November 2019
(This article belongs to the Special Issue 2nd International Colloquium on Smart Grid Metrology (SmaGriMet 2019))
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Abstract

This paper presents the extended results and prototype of the adiabatic copper conductor constructed with two interruption points in the external conductor layer, for use as a microcalorimeter power standard in wireless communication for a smart grid frequency range. Gaps are intended to drive down the thermal transfer from the outer environment into microcalorimeter and to reduce measurement inaccuracies in the microcalorimeter. The proposed design method is based on the combination of thermal and electromagnetic finite-element method simulations by which the desired line performance has been tailored. A prototype of the proposed adiabatic line has been manufactured and measurements on the prototype are presented along with the design procedure. Measured results are in line with the ones predicted by numerical calculations.
Keywords: microcalorimeter; adiabatic coaxial line; flange-type gap; thermal flow calculations microcalorimeter; adiabatic coaxial line; flange-type gap; thermal flow calculations
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MDPI and ACS Style

Martinovic, Z.; Dadic, M.; Ivsic, B.; Malaric, R. An Adiabatic Coaxial Line for Microcalorimeter Power Measurements in Wireless Communication for Smart Grid. Energies 2019, 12, 4194. https://doi.org/10.3390/en12214194

AMA Style

Martinovic Z, Dadic M, Ivsic B, Malaric R. An Adiabatic Coaxial Line for Microcalorimeter Power Measurements in Wireless Communication for Smart Grid. Energies. 2019; 12(21):4194. https://doi.org/10.3390/en12214194

Chicago/Turabian Style

Martinovic, Zeljko, Martin Dadic, Branimir Ivsic, and Roman Malaric. 2019. "An Adiabatic Coaxial Line for Microcalorimeter Power Measurements in Wireless Communication for Smart Grid" Energies 12, no. 21: 4194. https://doi.org/10.3390/en12214194

APA Style

Martinovic, Z., Dadic, M., Ivsic, B., & Malaric, R. (2019). An Adiabatic Coaxial Line for Microcalorimeter Power Measurements in Wireless Communication for Smart Grid. Energies, 12(21), 4194. https://doi.org/10.3390/en12214194

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