NDLI: An automated amplitudes-only measurement system for permittivity determination using free-space method

Content Provider	IEEE Xplore Digital Library
Author	Akay, M.F. Kharkovsky, S.N. Hasar, U.C.
Copyright Year	2001
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Cukurova Univ., Adana, Turkey (Akay, M.F.)
Abstract	An automated PC based free-space system for determining the permittivity of high-loss materials is proposed. The main feature of the system is to measure only the amplitudes of transmission and reflection coefficients using free-space method and determine the permittivity dynamically using a computer. Firstly, the expressions for the reflection and transmission coefficients involving the permittivity of the high-loss material are derived. Then these equations are solved together by using the halving method. In order to measure the amplitudes of reflection and transmission coefficients, a simple and inexpensive microwave measurement system is established. The parallel port is used as an interface between the computer and the designed control circuit. A software program is developed for the treatment of the measured signal amplitudes and determination the permittivity of high-loss materials.
Sponsorship	IEEE Instrum. & Meas. Soc.
Starting Page	503
Ending Page	506
File Size	358325
Page Count	4
File Format	PDF
ISBN	0780366468
ISSN	10915281
DOI	10.1109/IMTC.2001.928870
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-05-21
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Permittivity measurement Microwave measurements Dielectric measurements Dielectric materials Automation Reflection Conducting materials Microwave theory and techniques Circuits Microwave devices
Content Type	Text
Resource Type	Article
Subject	Instrumentation Electrical and Electronic Engineering

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