ABF-Type A dielectric characterized to 220 GHz: Dk 3.4-3.5, loss tangent ~0.003-0.01
jwt0625 · x · 2026-10-19
Citing a 2026 paper on temperature-dependent electrical characterization of ABF-Type A material up to 220 GHz: dielectric constant of 3.4-3.5 and loss tangent 0.003-0.01 from 10 to 220 GHz, rising with frequency and temperature (25/80/115°C). The author also shows a UR robot arm on a VNA probe setup measuring to 220 GHz, noting the arm feels dirt cheap next to the instrument.
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