High dielectric constant thin film EBG power/ground network for broad-band suppression of SSN and radiated emissions

• Published in: IEEE microwave and wireless components letters Vol. 15; no. 8; pp. 505 - 507
• Main Authors: Junho Lee, Hyungsoo Kim, Kim, Joungho
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.08.2005; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Circuit noise; Dielectric measurements; Dielectric thin films; Digital printing; Electromagnetic bandgap (EBG); Electromagnetic compatibility; Electromagnetic interference; Electromagnetic measurements; Electronic equipment and fabrication. Passive components, printed wiring boards, connectics; Electronics; Exact sciences and technology; High-K gate dielectrics; Information, signal and communications theory; Nonhomogeneous media; power distribution network impedance; Power systems; radiated emission; simultaneous switching noise (SSN); Telecommunications and information theory; Thin film circuits; High performance; Photonic band gap; simultaneous switching noise (SSN); Noise reduction; radiated emission; Printed circuit board; Switching; power distribution network impedance; Wide band; Electromagnetic bandgap (EBG); Electromagnetic interference; s parameter; Power distribution; Dielectric thin films; Digital circuit; High k dielectric; Printed circuit; Impedance; Distribution network; Multilayered circuit
• ISSN: 1531-1309; 1558-1764
• DOI: 10.1109/LMWC.2005.852779

We experimentally demonstrated the great advantages of a high dielectric constant thin film electromagnetic bandgap (EBG) power distribution network (PDN) for the suppression of power/ground noises and radiated emissions in high-performance multilayer digital printed circuit boards (PCBs). Five-layer test PCBs were fabricated and their scattering parameters measured. The power plane noise and radiated emissions were measured, investigated and related to the PDN impedance. This successfully demonstrated that the bandgap of the EBG was extended more than three times, covering a range of hundreds of MHz using a 1-cm /spl times/ 1-cm EBG cell, the SSN was reduced from 170 mV to 10 mV and the radiated emission was suppressed by 22 dB because of the high dielectric constant thin film EBG power/ground network.