Designers sometimes employ gapped reference planes to isolate analog and digital signals, and separate "quiet" and "noisy" ground structures by providing a series impedance. Guard traces are also used to reduce unwanted coupling to adjacent traces, which can lead to signal integrity or EMI problems. This study investigates the impact of gaps and guard traces on radiated EMI. A simple microstrip circuit was constructed to experimentally analyze the effects of groundplane gaps and guard traces.
F. Sha et al., "Effects of Gapped Groundplanes and Guard Traces on Radiated EMI," Proceedings of the IEEE 1997 International Symposium on Electromagnetic Compatibility, 1997, Institute of Electrical and Electronics Engineers (IEEE), Jan 1997.
The definitive version is available at http://dx.doi.org/10.1109/ISEMC.1997.667561
IEEE 1997 International Symposium on Electromagnetic Compatibility, 1997
Electrical and Computer Engineering
Keywords and Phrases
Electromagnetic Compatibility; Electromagnetic Interference; Gapped Groundplanes; Gapped Reference Planes; Ground Structures; Guard Traces; Microstrip Circuit; Microstrip Circuits; Radiated EMI; Series Impedance; Signal Integrity
Article - Conference proceedings
© 1997 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.