An Efficient and Frequency-Scalable Algorithm for the Evaluation of Relative Permittivity Based on a Reference Data...

Area of Science:

• Electrical Engineering
• Materials Science
• Electromagnetics

Background:

• Accurate characterization of dielectric material properties is essential for designing electronic and communication devices.
• Microstrip ring resonators are widely used for material characterization due to their sensitivity and compact size.
• Existing methods for evaluating relative permittivity can be computationally intensive or limited in scope.

Purpose of the Study:

• To develop a fast and efficient algorithm for calculating the relative permittivity of solid dielectric samples.
• To validate the algorithm's performance across a range of material thicknesses and permittivity values.
• To provide a versatile and accurate tool for material characterization in microwave applications.

Main Methods:

• Development of a novel algorithm for relative permittivity evaluation.
• Measurement of dielectric samples using a microstrip ring resonator.
• Verification of the algorithm against known material properties and standard laminates.

Main Results:

• The algorithm accurately determines relative permittivity for thicknesses up to 8 mm and permittivity values up to 10.
• Maximum error was within 10% for samples thicker than 7 mm.
• Standard laminates (TLX8-060, RF60A-0300, RF60A-0620, FR4) showed an average error of 2.34%.

Conclusions:

• The proposed algorithm offers a fast, efficient, and accurate method for dielectric material characterization.
• Its frequency-scalable and appendable nature makes it highly adaptable for various applications.
• The algorithm is suitable for a wide range of materials used in modern electronics and communications.