University of Oulu

R. Sivakumar, Y. S. Lee, S. Norlyana Azemi, Z. A. Ahmad, P. Jack Soh and K. Y. You, "A Free-Space Measurement System for Microwave Materials at Kuband," 2022 IEEE International RF and Microwave Conference (RFM), Kuala Lumpur, Malaysia, 2022, pp. 1-4, doi: 10.1109/RFM56185.2022.10064980

A free-space measurement system for microwave materials at Kuband

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Author: Sivakumar, Renukka1; Lee, Yeng Seng2; Azemi, Saidatul Norlyana2;
Organizations: 1Faculty of Electronic Engineering Technology, Universiti Malaysia Perlis(UniMAP, Kampus Alam Unimap, Arau, Perlis, Malaysia
2Advanced Communication Engineering, Centre of Excellence (CoE), University Malaysia Perlis (UniMAP), Perlis, Malaysia
3Centre for Wireless Communications (CWC), University of Oulu, Oulu, Finland
4Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, Malaysia
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.3 MB)
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Language: English
Published: IEEE, 2022
Publish Date: 2023-04-14


One of the non-resonant techniques is the free-space measurement technique, which is popular due to its many advantages compared to the other techniques. It allows the transmission and reflection measurements without any physical contact with the sample. This paper discusses the free-space material measurement system in Ku-band which uses the NRW algorithm and Keysight (Formerly Agilent) 85071E software in determining the dielectric properties of materials. The permittivity and permeability of Teflon, FR4, PVC, ABS, Acrylic, polypropylene, polycarbonate, and epoxy were determined using free space measurement setup. For the first, a free-space measurement for Ku-Band is setup. It consists of a vector network analyzer, two horn antennas, sample holder, and Keysight 85071E software. The different role of transmission and reflection measurements on the achievable results is analyzed about experimental uncertainties and different noise scenarios. Results from the two strategies are analyzed and compared. Good agreement between simulation, measurement, and literature was obtained.

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ISBN: 978-1-6654-8977-5
ISBN Print: 978-1-6654-8978-2
Article number: 10064980
DOI: 10.1109/rfm56185.2022.10064980
Host publication: 2022 IEEE International RF and Microwave Conference (RFM)
Conference: IEEE International RF and Microwave Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: The author would like to acknowledge the support from the Malaysian Technical Universities’ Network (MTUN) Matching Research Grant awarded by the Ministry of Higher Education of Malaysia (MOHE) entitled “A Free Space Material Measurement System”(Project No.UniMAP/PPPI/GRN IRPA/MTUN/9002- 00101/9028-00016).
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