EMSIM
PowerPEEC
CZ2D
EMSIM is a frequency domain, moments-method code based on the use of 2D rooftop basis functions to represent both electric
currents and polarization currents. The use of strictly 2D rooftop functions serves to yield very robust and physically stable solution.
EMSIM rigorously calculates the currents on physical structures and the corresponding radiated electromagnetic fields. It is
intended for modeling electromagnetic interference (EMI), radiation from antennas, electrical characteristics of interconnects on
electronic printed circuit boards, IC packages and chips, and other electromagnetics problems. The program consists of a
convenient graphical user interface (GUI) that permits easy input of the structure, an advanced electromagnetic solver, and powerful
postprocessors for viewing the results. Results of near field emissions, far field emissions, RF current distribution, etc are all
available to allow the user to better understand the results and apply them to the EMI design.
EMSIM was developed at the IBM T.J. Watson Research Center and has been used within IBM for more than 10 years to help
engineers understand the physics of EMI/EMC as well as high speed printed circuit board trace signal integrity issues.
Analysis of long wires attached to shielded boxes, shielded boxes with apertures, effects of traces close to the edge of printed
circuit boards, traces crossing splits in the ground-reference plane, and many other models are routinely analyzed by this power
MoM fullwave simulation tool.
206-779-5345
info@mossbayeda.com
PowerPEEC is a unique tool that allows BOTH time-domain and frequency domain analysis modes.
PowerPEEC is a one-of-a-kind full wave electromagnetic simulation tool. PowerPEEC is based on the Partial Element Equivalent
Circuit (PEEC) technique invented by Dr. Albert Ruehli at the IBM T.J. Watson Research Laboratories. PEEC is becoming a very
popular modeling technique world-wide, especially for printed circuit board (PCB) EMI and signal integrity effects. PCB
discontinuities, such as vias, sharp corners on high speed traces, etc can be modeled with fullwave accuracy in both the time domain
and the frequency domain.
The program consists of a convenient graphical user interface (GUI) that permits easy input of the structure, an advanced
electromagnetic time-domain and frequency domain solver, and powerful post processors for viewing the results. Results of
time/frequency domain current distribution, voltage distribution, as well as animated time-domain views showing how the
current/voltage flow across the structure. These various results are all available to allow the user to better understand the results and
apply them to the EMI design.
In addition to the unique full wave capabilities, PowerPEEC also allows quasi-static analysis. Capacitance, inductance, resistance
extraction are all available, as well as a full transmission line model (with HSPICE format available) may be performed on these
various structures using the PEEC simulation technique.
PowerPEEC is truly a unique tool, since it combines full-wave time-domain, full-wave frequency-domain, quasi-static circuit
element extraction and transmission line equivalent circuit extraction.
CZ2D calculates the capacitance and inductance for lossless two-dimensional structures, for example, transmission lines on printed
circuit boards. It is especially useful to calculate the capacitance of signal lines over finite sized or infinite ground planes when the
aspect ratios and thickness are such that fringing fields are significant and the parallel plate capacitance formula is not accurate.
Structures in CZ2D have polygonal cross-section, and may include infinite ground planes and dielectric interfaces.