JOURNAL / ISSUES / SHORT SEARCH     ISSN 2310-6697/ISSN-L 2310-6697

open transactions on independent scientific-engineering research

FUNKTECHNIKPLUS # JOURNAL

Théorie-Expérimentation-Métrologie-Logiciel-Applications

ISSUE 39 - SATURDAY 31 JANUARY 2026 - YEAR 13

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PAPERS

Attribution 4.0 International License CC BY 4.0

39-1

# Electrical Engineering - Théorie

Comments on RTV and HTV Materials for High Voltage Outdoor Insulation

M. G. Danikas and R. Sarathi

ABSTRACT

The purpose of this short paper is to point out and comment on some aspects of silicone rubber materials used for outdoor insulators. The present note does not analyze in detail the properties of such insulating materials but it emphasizes factors affecting their performance.

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MD5:45e463d78adadaac71ea8626e7375069

39-2

# Telecommunications Engineering - Théorie - Métrologie

A Conceptual Model for the Reflection Measurements of a Vector Network Analyzer System and its Practical Application

Nikolitsa I. Yannopoulou and Petros E. Zimourtopoulos

ABSTRACT

We present the gradual building of our conceptual model for the reflection measurements of a VNA Vector Network Analyzer System. In this way, we reveal the fundamental idea behind this kind of measurements and prepare the studier for a deeper comprehension of this subject. Moreover, since this abstract model is exclusively based on technical specifications supplied by the manufacturers of system components, it is directly applicable in practice. To demonstrate this fact, we use a specific VNA System to compute and draw both the frequency dependent systematic error parameters of it and of the reflection coefficient and input impedance of a particular antenna we constructed and measured by using it.

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