Development of extraction techniques for dielectric constant from free-space measured S-parameters between 50 and 170 GHz

Öztürk, Turgut; Elhawil, Amna; Uluer, İhsan; Guneser, Muhammet Tahir

doi:10.1007/s10854-017-6953-z

Cited by 21 publications

(9 citation statements)

References 26 publications

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“…Microwave spectroscopy systems, which may be an alternative method, have been performed in many application areas such as security or military. Free space measurement (FSM) method especially offers the possibility of especially non-destructive and non-contact measurements, characterization of solid-liquid-powder materials, measuring solid materials except very small ones, and without preparing sample 1,2 .…”

Section: Introductionmentioning

confidence: 99%

Demonstration of Container Effects on Recognition Process of Liquids Using a Ring-Resonator Measurement Method

Öztürk

2019

Sci Rep

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Before separating or classifying hazardous/unsafe liquids, a system must be identified which can best measure certain liquids. The preferred measurement system can be useful, quick response, rapid measurement and so on. However, these features are not sufficient to classify the liquids in different containers. Especially at security points, containers of liquids carried by people may be different. Therefore, it has been investigated whether classification can be made by using the response of different containers to electromagnetic radiation. When the ring resonator measurement method is used in the 1–1.4 GHz frequency range, a successful separation process is carried out, even if the containers were made of different materials. Nevertheless, a well-known k-means algorithm has been used to analyze the measurement results of selected liquids.

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Section: Introductionmentioning

confidence: 99%

Demonstration of Container Effects on Recognition Process of Liquids Using a Ring-Resonator Measurement Method

Öztürk

2019

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“…The geometrical structures in the simulation environment and their electromagnetic properties (such as permittivity and conductivity) influence the propagation paths and the received power. The electromagnetic characteristics of some common indoor office materials were determined as a result of material measurements in high frequencies 32‐36 . Moreover, even humidity and temperature of the environment are able to influence the propagation paths and received power.…”

Section: Ray‐trace Based Campaignmentioning

confidence: 99%

Millimeter‐wave propagation modeling and characterization at 32 GHz in indoor office for 5G networks

Şeker

Guneser

Arslan

2020

Int J RF Microw Comput Aided Eng

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Since it has a great bandwidth that supports gigabit communication, it is considered to use the millimeter-wave (mmWave) band in the fifth generation (5G) wireless communication. Therefore, an efficient, reliable, and accurate channel model is of vital importance in mmWave bands for indoor environments, especially in the 31.8 to 33.4 GHz band allocated by ITU for 5G communications. In this article, we performed modeling and characterization campaign at the 32 GHz in a typical indoor office environment on fourth floor of the Engineering Faculty in University of Karabuk, Turkey. The obtained results provide large-scale fadings such as path loss, shadowing, root mean square (RMS) delay spread, RMS angular spread, power angular spectrum, number of clusters, and Ricean K-factor in an open-plan indoor environment. Power angular spectrum is used to comprehend the propagation structure. We propose that the results obtained in this study will play a key role in simulating and planning systems at 32 GHz for 5G wireless communication.

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“…The factors, such as measured frequency range, the expected value of the permittivity, required measurement accuracy, properties of the material (homogeneous, isotropic), and form of the material (solid, liquid, and gas), must be taken into consideration during the method determination. In addition, conditions such as sample size constraints, temperature, contact/noncontact measurement, and destructive/nondestructive measurement must be considered [12,13].…”

Section: Electrical and Electronic Properties Of Materialsmentioning

confidence: 99%

Measurement Methods and Extraction Techniques to Obtain the Dielectric Properties of Materials

Öztürk¹,

Guneser²

2019

Electrical and Electronic Properties of Materials

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Material characterization plays an important role in many applications that are called as security, military, communication, bioengineering, medical treatment, food industry, and material processing, since it is useful to identify other properties such as stress-strain relation, bio content, moisture content, materials density, etc. Therefore, the dielectric properties of materials should be achieved with high accuracy using appropriate measurement techniques and extraction techniques. There are many measurement methods to obtain the dielectric properties of materials, which can be divided into two categories: up conversion and down conversion methods. A microwave measurement method can be called as frequency up conversion, while THz time-domain spectroscopy (THz-TDS) system is a frequency down conversion method. The selection of more convenient measurement method depends on some parameters such as frequency range, material phase, and temperature. In this chapter, the measurement methods and extraction techniques will be discussed, and alternative ways will be presented with experimental and simulation results.

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Development of extraction techniques for dielectric constant from free-space measured S-parameters between 50 and 170 GHz

Cited by 21 publications

References 26 publications

Demonstration of Container Effects on Recognition Process of Liquids Using a Ring-Resonator Measurement Method

Demonstration of Container Effects on Recognition Process of Liquids Using a Ring-Resonator Measurement Method

Millimeter‐wave propagation modeling and characterization at 32 GHz in indoor office for 5G networks

Measurement Methods and Extraction Techniques to Obtain the Dielectric Properties of Materials

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