TY - JOUR
T1 - A novel compact electromagnetic bandgap structure in power plane for wideband noise suppression and low radiation
AU - Rao, Patnam Hanumantha
AU - Swaminathan, Madhavan
N1 - Funding Information:
Manuscript received April 19, 2010; revised August 20, 2010 and December 13, 2010; accepted April 20, 2011. Date of publication July 7, 2011; date of current version November 18, 2011. This work was supported by SAMEER-Centre for Electromagnetics, Chennai, India and by Georgia Tech, Atlanta under a collaborative program on System on Package.
PY - 2011/11
Y1 - 2011/11
N2 - A compact reduced unit cell size electromagnetic bandgap (EBG) power plane, realized with a combination of alternating impedance EBG and multiple narrow slits, is presented. By concatenating 2 2 high-frequency unit cells, a virtual low-frequency EBG unit cell is synthesized without changing the overall dimensions. In this configuration, the basic slit in the high-frequency unit cell remained same, and an additional slit with longer dimensions is added in parallel to the basic slit by synthesizing a larger low-frequency unit cell. EBG is characterized for its dispersion diagram, noise suppression, signal integrity, and electromagnetic radiation. Fabricated EBG exhibits a bandgap from 0.9 to 3.5GHz with isolation better than 40 dB over the band. Radiated emission of the new EBG is small with an average value of 35 dBuV/m. Compact EBG also exhibits low impedance, which is less than 1 over the stopband. Eye patterns are generated to analyze signal integrity issues when the data lines are referenced over the solid ground plane and EBG plane. The degradation of the maximum eye opening and the maximum eye width for the proposed EBG power plane at 2 Gb/s data rate is about 17.8 and 1, respectively, with reference to the equivalent board with solid power plane.
AB - A compact reduced unit cell size electromagnetic bandgap (EBG) power plane, realized with a combination of alternating impedance EBG and multiple narrow slits, is presented. By concatenating 2 2 high-frequency unit cells, a virtual low-frequency EBG unit cell is synthesized without changing the overall dimensions. In this configuration, the basic slit in the high-frequency unit cell remained same, and an additional slit with longer dimensions is added in parallel to the basic slit by synthesizing a larger low-frequency unit cell. EBG is characterized for its dispersion diagram, noise suppression, signal integrity, and electromagnetic radiation. Fabricated EBG exhibits a bandgap from 0.9 to 3.5GHz with isolation better than 40 dB over the band. Radiated emission of the new EBG is small with an average value of 35 dBuV/m. Compact EBG also exhibits low impedance, which is less than 1 over the stopband. Eye patterns are generated to analyze signal integrity issues when the data lines are referenced over the solid ground plane and EBG plane. The degradation of the maximum eye opening and the maximum eye width for the proposed EBG power plane at 2 Gb/s data rate is about 17.8 and 1, respectively, with reference to the equivalent board with solid power plane.
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U2 - 10.1109/TEMC.2011.2156408
DO - 10.1109/TEMC.2011.2156408
M3 - Article
AN - SCOPUS:81955161185
SN - 0018-9375
VL - 53
SP - 996
EP - 1004
JO - IEEE Transactions on Electromagnetic Compatibility
JF - IEEE Transactions on Electromagnetic Compatibility
IS - 4
M1 - 5942153
ER -