|About this Abstract
|2023 TMS Annual Meeting & Exhibition
|Phase Stability, Phase Transformations, and Reactive Phase Formation in Electronic Materials XXII
|3D Electromagnetic Simulation and Experimental Measurements of Performance of Antenna at mm-wave Frequencies: Surface Finish Effect
|Ying-Chih Chiang, Pei-Chia Hsu, Chun-Jou Yu, Cheng-Hsien Chou, Cheng-En Ho
|On-Site Speaker (Planned)
Millimeter wave frequency band (76–81 GHz band) has received widespread attentions in the radar sensor applications as its high resolution, long range, and beam-steering radar characteristics. Under high-frequency transmission, the surface finish coatings would dominate the electrical properties of Cu circuits due to the so-called “skin effect’’. This study will deeply probe into the effect of surface coatings on performance of antenna at 76–81 GHz. We investigated different surface finishes over the Cu circuit of an antenna, including electroless nickel/immersion gold (ENIG), electroless nickel/electroless palladium/immersion gold (ENEPIG), ultrathin-Ni(P)-type ENEPIG, immersion tin, immersion gold, and immersion gold/electroless palladium/immersion gold (IGEPIG). A 3D electromagnetic simulation through ANSYS-HFSS software showed that the radiation efficiency significantly degrades with the Ni(P) thickness, suggesting that high permeability and low conductivity of Ni(P) is the root cause of the efficiency degradation. Further experimental and ANSYS-HFSS analyses will be presented in this study.
|Other, Other, Other