Low Loss Quartz Multilayer Substrates and Substrate Integrated Two-Plane Hybrid Couplers Enabled by Copper Direct Bonding

This paper presents a fused silica glass (quartz) multi-layer substrate using the copper direct bonding method. A fabricated substrate-integrated-waveguide (SIW) based two-plane hybrid coupler composed of five quartz layers showed low loss characteristics at the 60 GHz band. Quartz has low loss char...

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Bibliographic Details
Main Authors: Takashi Tomura, Jiro Hirokawa, Osamu Kagaya, Nobutaka Kidera, Daisuke Yamanaka, Hisaaki Furukawa, Katsuaki Miyatani
Format: Article
Language:English
Published: IEEE 2025-01-01
Series:IEEE Journal of Microwaves
Subjects:
Online Access:https://ieeexplore.ieee.org/document/11008625/
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