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Lin_Ming_Chih
Key parameters of PCB materials, such as DK, TanD, dielectric height, etched trace width, copper thickness and roughness, are critical for high speed PCB transmission line design. In this mini workshop, Beatty series resonant impedance structures are used to improve accuracy of PCB material property extraction for EM simulation and signal
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rezfo
I recently cheaply got an HP8590b spectrum analyzer (front panel says 50ohm, but option menu says 001, 75ohm) having a dead battery and booting with an error (0030-00000000). After replacing the battery, the instrument does not boot anymore: I have to remove the battery, short the supercap (by a resistor) to <1v and again it boots (with the
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