Scholarlink

Accuracy in permittivity evaluation plays an important role in composite material characterization. But, this permittivity evaluation gets affected, if there is a variation in the thickness of the sample under test (SUT) at a given frequency band. Hence, finding the suitable thickness range of SUT for evaluating the correct permittivity is a challenging task for low-dielectric low-loss composite materials. This paper presents an algorithm based on the Robert-von Hippel (RVH) method and exhaustive search optimization for finding the suitable thickness range of SUT at a given microwave frequency band \((4-40 \, GHz)\) . The simulation calculates the optimized thickness ranges for the low-dielectric low-loss composite material samples for the C-band, X-band, Ku-band, K-band, and Ka-band. It is also observed that there is no change in the RVH permittivity of the material by varying the loss tangent in the range from 0 to 0.1.

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Permittivity Evaluation Based Algorithm for Detecting Optimal Thickness Range of Composite Materials at Microwave Frequencies

  • 会议论文

  • 发表日期：

    2025年

查看全文
  • Shankar Aenagandula,
  • Neeraj Rao

摘要

Accuracy in permittivity evaluation plays an important role in composite material characterization. But, this permittivity evaluation gets affected, if there is a variation in the thickness of the sample under test (SUT) at a given frequency band. Hence, finding the suitable thickness range of SUT for evaluating the correct permittivity is a challenging task for low-dielectric low-loss composite materials. This paper presents an algorithm based on the Robert-von Hippel (RVH) method and exhaustive search optimization for finding the suitable thickness range of SUT at a given microwave frequency band \((4-40 \, GHz)\) . The simulation calculates the optimized thickness ranges for the low-dielectric low-loss composite material samples for the C-band, X-band, Ku-band, K-band, and Ka-band. It is also observed that there is no change in the RVH permittivity of the material by varying the loss tangent in the range from 0 to 0.1.