TSP
Автор: The Signal Path
Загружено: 2025-01-19
Просмотров: 22053
In this episode Shahriar takes a look at a terahertz characterization technique using a Fabry-Perot resonance chamber made by EM Labs:
https://www.emlabs.jp/en/1-8-fpr.php
The chamber is able to measure dielectric constant and loss tangent with remarkable accuracy and prevision, ideal for materials with tan δ (Df) of 0.01 or less. This tutorial and review video is organized as follows:
00:00 - Introductions
00:45 - Dielectric Constant theory, equations and practical importance
04:54 - Measurement techniques using S-Parameters and resonance chambers
08:16 - Fabry-Perot resonator techniques for accurate Dk & Df measurements
11:04 - THz measurement setup including Fabry-Perot resonator, Keysight Streamline VNA and VDI frequency extenders
13:36 - Design challenges and features of the EM Labs Fabry-Perot resonator
16:02 - Software setup, resonator calibration and preparations
19:22 - Preparing, aligning and measuring samples, organic PCB laminate and prepreg
23:19 - Measuring ultra-low loss materials in J-Band
24:21 - Analyzing anisotropic material properties as a function of orientation
26:27 - Concluding remarks
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