Resolving Anisotropic Permittivity in Woven Quartz Fluoropolymer Circuit Substrates
Woven quartz fluoropolymer substrates exhibit directional permittivity splits resolved through tensor modeling, 45-degree layout, and split-post testing.
Modeling Spatial Permittivity Variation across Master Panels in Submillimeter Wave Multilayers
Modeling spatial permittivity gradients across master panels prevents severe sub-THz phase mismatch and bounds yield loss in production multilayers.
Resin Matrix Permittivity Temperature Drift Basics in High Frequency Substrates
Matrix thermal permittivity drift alters RF phase velocity and impedance, demanding ceramic-filled low-TcDk laminates for thermally stable millimeter-wave designs.