![]() post processing converts time-domain output from the field solver to frequency domain via FFT. pcb thickness can be re-scaled upon import from eagle cad / hyperlynx / hyp2mat conversion. Currently, only Gaussian excitation with lumped element terminations are supported. microstrip) pcb devices can be designed using eagle cad pcb design software. Microstrip calculator aids in converting to/from lumped element / distributed elements Graphically manage simulation parameters configurations for multiple projects. Generates output that can be directly solved with the openEMS FDTD field solver Written in Java, Utilizes Jogl (openGL bindings), Same executable runs on Windows and Linux. E-field dumps can be enabled, allowing the user to view animated e-field propagation along the surface plane of the pcb with paraview software. The touchstone outputs can be imported into a circuit simulator such as QUCS where the PCB can now be inserted into an s-parameter circuit simulation just like any other 1-port / 2-port device. The complex values returned are used to generate s-parameter plots s11/s21, smith chart plot of s11, and touchstone outputs. jPCBSim reads this data during the simulation on a user-defined interval and converts it to frequency domain via FFT. The time-domain data output from openEMS is output in steps throughout the entire simulation. The output generated by jPCBSim is an xml file that is structured in a format that openEMS reads for simulation. jPCBSim is then used to configure various parameters to be simulated. hyp file is then imported (via the hyp2mat software). The pcb is then exported from eaglecad using the hyperlynx ulp script. The ports extend from the top copper to the bottom copper with the ends matching the dimension of the test pads. These pads are converted to box-type lumped element ports with a user-defined termination resistance. Currently, excitation and sensor ports are positioned by placing smd test pads (from testpad.lbr) with the device names TP1 (excitation) and TP2 on the port areas of the pcb design. The first step is to create a 2-layer pcb using EagleCad. Octave and gnuplot (current interfaces for openEMS) are not required to simulate pcb structures with jPCBSim. The goal of the jPCBSim application is to improve a users ability to maintain, configure, and simulate planar pcb-based filters, antennas, and other 1-port / 2-port devices using the openEMS FDTD engine. examples including validation via measurements A pull-request has been submitted.Ĭoming soon. You can follow the instructions for building openEMS, but build from the local fork for now. Requires a patch to newest version of openEMS. Re-enabled LorentzMaterials for the pcb dielectric. Anything >2 ports, uses the touchstone N-port format. Simulations for N-port (up to 9 ports) touchstone output now supported.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |