Abstract

Circuit board mounted, shunt capacitive filters are less effective at high frequencies because of the mutual inductance (M) that exists between the input and output ports. An approximate expression for the mutual inductance is M=(μh/2π)ln(h/a); where h=via length and a=radius of the via connecting the capacitor to the return plane. The reduced mutual inductance associated with the new, three-terminal, surface-mounted capacitor results in more than 15 dB increased attenuation compared to two-terminal capacitors over the 0.3-6.0 GHz range with 50 Ω source and load terminations

Meeting Name

IEEE International Symposium on Electromagnetic Compatibility (2001: Aug. 13-17, Montreal, Quebec)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

0.3 to 6.0 GHz; 50 Ohm; Capacitors; Equivalent Circuits; High-Frequency Attenuation Improvement; Inductance; Input Ports; Load Terminations; Low-Pass Filters; Mutual Inductance; Output Ports; Shunt Capacitor Low-Pass Filters; Source Terminations; Surface Mount Technology; Three-Terminal Surface-Mounted Capacitor; Electric Impedance; Electric Load Management; Schematic Diagrams; Shunt Capacitors; Electromagnetic Wave Attenuation

International Standard Book Number (ISBN)

780365690

International Standard Serial Number (ISSN)

0190-1494

Document Type

Article - Conference proceedings

Document Version

Final Version

File Type

text

Language(s)

English

Rights

© 2001 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

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