((1.9*(2*TraceToPlaneDistance+TraceHeight))/(EXP((CharacteristicImpedance/(80/SQRT(Er)))/(1-(TraceToPlaneDistance/(4*(PlaneToPlaneDistance-TraceHeight-TraceToPlaneDistance))))))-TraceHeight)/0.8 (80/SQRT(Er))*LN((1.9*(2*TraceToPlaneDistance+TraceHeight)/(0.8*TraceWidth+TraceHeight)))*(1-(TraceToPlaneDistance/(4*(PlaneToPlaneDistance-TraceHeight-TraceToPlaneDistance)))) The formula can be modified as required, either directly in-situ, or through use of the Query Helper, accessed by clicking the Helper button. Calculated Impedance - this region of the tab presents the current formula used in the calculation of the routing impedance.Stripline TabĬlick this tab to access formulae used when a route has planes present on both sides of it (referred to as a stripline). Note that if the plane layer is not adjacent to the signal layer then the nearest plane layer will be used in the calculations. Default - click to load the region with the default formula.While you can modify the formula directly in its region, especially if you are proficient with the Query Language, the Query Helper provides additional support with function keywords, operators and a syntax checker. Helper - click to access the Query Helper dialog with the current formula loaded ready to make changes as required.The following pair of buttons are available for each formula region: Calculated Trace Width - this region of the tab presents the current formula used in the calculation of the routing trace width, which is used in the impedance formula.The formula can be modified as required, either directly in-situ or through use of the Query Helper, accessed by clicking the Helper button. Options/Controls Microstrip TabĬlick this tab to access formulae used when a route has a plane layer present on only one side of it (referred to as a microstrip). The latter is accessed by choosing Design » Layer Stack Manager from the main menus. The dialog is accessed from the PCB Editor by clicking the Impedance Calculation button in the Layer Stack Manager dialog. This dialog allows you to view and (if required) modifythe formulae used to calculate Impedance and Trace Width when using impedance-controlled routing.
The A365 Viewer is part of Altium’s cloud strategy and newly launched Altium 365 cloud platform.The Impedance Formula Editor dialog Summary
#Altium designer 18 tools, calculator software#
Other popular PCB design software formats will be supported in the near future. The A365 Viewer is designed to work with multiple eCAD formats, currently supporting Autodesk Eagle and Altium Designer. Using the A365 Viewer requires no CAD tools or experience. For example, the A365 Viewer allows users to search for, select, cross-probe and inspect components and nets while moving seamlessly between schematic, PCB and 3D views of their board. With the new A365 Viewer, an interactive experience is created that retains all of the key relevant information that’s typically lost when sharing static files. Until now, designers have been forced to share their PCB designs through PDFs or static images. PCB design software provider Altium has launched a new cloud-based application, A365 Viewer, to view and share electronic designs through a browser on any web-enabled desktop, phone or tablet.
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