Investigation of Microwave Properties of High Permittivity Ceramic Substrate

Mandeep, J. S.; Loke, N. K.; Hassan, Shahir Akram; Ain, Mohd Fadzil; Sreekantan, Srimala; Cheong, Kuan Yew

doi:10.1163/156939308787537955

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“…However, this system presents several drawbacks in the case of solid materials with low losses, such as some kind of marbles [3][4][5][6][7][8][9][10]. The measurement is indeed sensitive to the MUT surface roughness and the presence of local defects, such as voids or grains, has a strong influence on the measurement accuracy.…”

Section: Introductionmentioning

confidence: 99%

An Adaptive Cavity Setup for Accurate Measurements of Complex Dielectric Permittivity

Addamo¹,

Virone²,

Vaccaneo³

et al. 2010

PIER

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Abstract-In order to enhance the accuracy of the complex permittivity data employed in Ground Penetrating Radar (GPR) techniques, an adaptive cavity setup is presented. The use of moveable walls permits to relax the mechanical constraints on the sample dimensions so that it can be employed also in complicate measurement condition as, for example, in the case of wet samples. Moreover, exploiting the cavity resonance phenomenon, low loss materials, such as some type of marbles, can be accurately evaluated. The numerical characterization, the parametric analyses and the L-band measurement results show the validity and the reliability of this configuration.

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