학술논문

An Effective Surface Impedance Concept to Model Arbitrary Roughness Profiles on Printed Circuit Boards up to 110 GHz
Document Type
Periodical
Source
IEEE Microwave and Wireless Technology Letters IEEE Microw. Wireless Tech. Lett. Microwave and Wireless Technology Letters, IEEE. 33(6):783-786 Jun, 2023
Subject
Fields, Waves and Electromagnetics
Surface impedance
Surface roughness
Rough surfaces
Conductors
Copper
Conductivity
Substrates
Complex surface impedance
conductivity profile
gradient model
microstrip lines (MS)
surface roughness
Language
ISSN
2771-957X
2771-9588
Abstract
This letter presents a method to determine the complex surface impedance of rough conductors utilizing the main idea of the gradient model. By introducing a frequency dependent, effective quadratic surface roughness parameter real conductivity profiles can be described without simplified approximations. This concept delivers highly accurate simulation models, which is proven for additive and subtractive manufactured microstrip lines (MS) up to 110 GHz.