Two improved methods for determining complex permittivity in coaxial line of powder materials

Haihui Zha; Ling Tong; Yu Tian; Bo Gao

doi:10.1117/12.2014890

31 January 2013 Two improved methods for determining complex permittivity in coaxial line of powder materials

Haihui Zha, Ling Tong, Yu Tian, Bo Gao

Proceedings Volume 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation; 87590P (2013) https://doi.org/10.1117/12.2014890
Event: International Symposium on Precision Engineering Measurement and Instrumentation 2012, 2012, Chengdu, China

Abstract

In this paper, two improved methods are proposed for determining the complex permittivity of the powder materials from 1 to 18 GHz. Unlike the measurements of solid materials in a two-port coaxial line, two Teflon annular spacers are used to house the powder materials. One method is to obtain the scattering parameters at the reference plane of the powder materials using an improved TRL calibration method, then reconstruct the complex permittivity based on the traditional transmission-line method. The other method is based on the measurements of the scattering parameters of two different length coaxial lines, which only loaded with two Teflon annular spacers or partially loaded with powder materials housed by two Teflon annular spacers. Those two methods are particularly suitable for a small amount of powder materials. Finally the results of the measurements of two powder materials: loess and thin sand are shown, compared with the results measured by Agilent’s 85070E dielectric probe kit.

Citation Download Citation

Haihui Zha, Ling Tong, Yu Tian, and Bo Gao "Two improved methods for determining complex permittivity in coaxial line of powder materials", Proc. SPIE 8759, Eighth International Symposium on Precision Engineering Measurement and Instrumentation, 87590P (31 January 2013); https://doi.org/10.1117/12.2014890

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available