A Method for Determining the Dielectric Constant of Microwave PCB Substrates

Yamaçli, Serhan; Özdemir, Caner; Akdağlı, Ali

doi:10.1007/s10762-007-9317-6

Cited by 21 publications

(13 citation statements)

References 13 publications

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“…This observation manifests the importance of our work, which can easily provide the accurate electrical properties of the targeted boards before any circuit designs. The data at 36 GHz were extracted and summarized in Table 1 with error bars, showing fairly good agreement with the previously reported values (given in the parentheses) [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ].…”

Section: Resultssupporting

confidence: 85%

“…We developed a semi-analytical model with a reliable single-mode approximation to simplify the dielectric retrieval process. More than ten polymer sheets were tested, and the result shows good agreement with the full-wave simulation results as well as the previously reported data [ 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 , 34 , 35 , 36 ].…”

Section: Introductionsupporting

confidence: 86%

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Fast, Nondestructive, and Broadband Dielectric Characterization for Polymer Sheets

2020

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We propose a compact nearfield scheme for fast and broadband dielectric characterization in the microwave region. An open-type circular probe operated in the high-purity TE01 mode was developed, showing a strongly confined fringing field at the open end. This fringing field directly probed the freestanding sheet sample, and the overall reflection was measured. Without sample-loading processes, both of the system assembling time and the risk of sample damage can be significantly reduced. In addition, the nearfield measurement substantially simplifies the calibration and the retrieval theory, facilitating the development of easy-to-integrate and easy-to-calibrate dielectric characterization technique. The dielectric properties of more than ten polymers were characterized from 30 GHz to 40 GHz. We believe that this work fulfills the requirement of the fast diagnostic in the industrial manufactures and also provides valuable high-frequency dielectric information for the designs of 5G devices.

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Section: Resultssupporting

confidence: 85%

Section: Introductionsupporting

confidence: 86%

Fast, Nondestructive, and Broadband Dielectric Characterization for Polymer Sheets

2020

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“…[43,44,52,53] In addition, we also want to apply it for electrical property determination of various planar microwave lines. [40,54,55] …”

Section: Measurement Resultsmentioning

confidence: 99%

Simple procedure for robust and accurate complex permittivity measurements of low-loss materials over a broad frequency band

Hasar

Barroso

Kaya

et al. 2014

Journal of Electromagnetic Waves and Applications

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In this research paper, we propose a simple procedure for accurate, stable and broadband measurements of complex permittivity of low-loss dielectric samples with considerable lengths. We identify and demonstrate by numerical and analytical analyses the main ill-behaved factor that gives rise to inaccurate peaks for measurements of electrical properties of low-loss samples in the well-known Nicolson-Ross-Weir method. Without using this factor in the expressions and combining better features of the methods available in the literature, the proposed procedure allows highly accurate permittivity measurements over a broad band. We have validated the proposed method by permittivity measurements of a low-loss sample by different methods.

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“…The knowledge of a material's dielectric property is necessary in determining its suitability for a specific application. FR4 material is widely used as a substrate on most of the antenna designs, and the dielectric constant of the material is between 4.3 to 4.9 [21,22]. The dielectric constant and tangent loss value will be used to design single patch antenna in order to obtain the performance of each design.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study of Material Leucaena Leucocephala Stem Wood Plastic Composite (Wpc) Substrate With Fr4 Substrate Throughout Single Patch Antenna Design

Azlan¹,

Badrun²,

Ali³

et al. 2014

PIER B

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Abstract-The fabrication of single square patch antenna for proposed Leucaena Leucocephala ("Petai Belalang") Wood Plastic Composite (WPC) substrate board (PB Substrate board) and FR4 substrate board is presented in this paper. The experiment objective is to measure the performance of an antenna fabricated on the FR4 and PB substrate (proposed substrate) by comparing the performance in terms of material's dielectric constant and electron mobility and antennas' loss tangent, return loss (S 11 ), radiation pattern and practical antenna transmitting performance. The new substrate compositions of Leucaena Leucocephala stem and polypropylene (PP) are 30% and 70% consecutively. The result for 150 µm (sample B) indicates stability on most dielectric constant (ε r = 3.02), loss tangent (tan δ = 0.029) and electron mobility (5.31 × 10 3 cm 2 /V s ), with the consistency of antenna result, between simulation and measurement. All results obtained will be analyzed and displayed in the form of data and graphs.

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A Method for Determining the Dielectric Constant of Microwave PCB Substrates

Cited by 21 publications

References 13 publications

Fast, Nondestructive, and Broadband Dielectric Characterization for Polymer Sheets

Fast, Nondestructive, and Broadband Dielectric Characterization for Polymer Sheets

Simple procedure for robust and accurate complex permittivity measurements of low-loss materials over a broad frequency band

A Comparative Study of Material Leucaena Leucocephala Stem Wood Plastic Composite (Wpc) Substrate With Fr4 Substrate Throughout Single Patch Antenna Design

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