Guidelines for designing high Q interdigital capacitor in the FR4 PCB

pragash · Feb 14, 2019

can anyone give me guideline for designing high Q and low profile interdigital capacitor in the FR4 PCB? any link or material are welcomed.

vfone · Feb 14, 2019

This is done on RO4003 (Er=3.38) but have good explanations how should be designed:

http://www.vhfcomm.co.uk/interdigital capacitors.pdf

volker@muehlhaus · Feb 14, 2019

FR4 has poor loss tangent, which means results in low Q

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