Cadence has released AWR Design Environment 25.1 ISR1. This platform provides RF/microwave engineers with integrated high-frequency circuit (Microwave Office), system (VSS), and EM (AXIEM/Analyst) simulation technologies and design automation to develop physically-realizable electronics ready for manufacturing.

New Utilities
– The follow utilities are available under the Scripts menu:
– AMP_F File Generation: Creates a data file formatted for use with the AMP_F VSS amplifier element.
– Occupied Bandwidth: Measures the Occupied BW of a digitally modulated signal, which is a common digital modulation metric.
– Spur Finder: Identifies spurs in a spectrum.
Data Files
– The error message issued when attempting to parse a data file containing an invalid character now includes the line number where the error occurs, along with the column number and invalid character.
– Design Management/Version Control
– Restored the missing icons from LPFs under version control.
– A “VC” node now displays under the Circuit Symbols node in the Project Browser when connected to a source repository. Listed under the VC node are the symbol files in the repository, and listed under the file nodes are the symbols in the files.
– The Rename and Delete commands are now disabled for unlocked symbol files.
Extraction
– Schematic subcircuits are now extracted correctly in the z dimension when schematic Layout option Flipped Z is selected and an Offset is specified.
Layout
– Fixed issues with layout Boolean operations that include shapes with cutouts.
– iNets now add vias when routed onto a layout pin.
– Fixed a 3D schematic layout issue where the drawing layers could display in the wrong order in the z dimension.
– 3D Clip Area now works correctly with GPU acceleration enabled.
– DXF import now supports HATCH entities and native arcs.
Layout – EM
– Fixed an issue where if there were multiple ports that shared the same port numbers, a port could shift locations and overlap another port with the same number in a high hierarchy level when the EM structure was used as a subcircuit in several levels of hierarchy.
– Fixed an issue that could cause a blank EM structure 3D view to display.
– Fixed a crash that occurred when adding cutplanes in the 3D EM Layout View when GPU acceleration was disabled.
– Shapes now retain the Net Name specified on the shape Properties dialog box Net Properties tab.
Models – System
– The column header of the data file generated by the FILE_SNK block is now correctly formatted when Write columns header as comment is selected.
– Fixed an issue with MIXER_B calculation of output center frequency when LO input frequency is switched.
– Fixed loading issues of models with vector parameters such as RFSW_1nST from an xml component library.
Optimization
– The AWR Design Environment software no longer freezes when trying to float the Optimizer dialog box while optimizing.
– The AWR Design Environment software no longer freezes when right-clicking on the title bar of a floating Optimizer dialog box while optimizing.
Simulation – EMX
– Added a new iNet Area Pin port type on the EXTRACT block for EMX extraction.
– 3D-view EM currents annotation arrows on non-orthogonal segments now point in the correct direction.
Simulation – Systems
– Improved responsiveness of the Simulation window when running long RFI and RFB simulations.
– Results of a distributed swept simulation utilizing a SWPVAR_DIST block along with other non-distributed swept parameters now plot correctly.
– RF Budget noise calculation was incorrectly setting the thermal noise floor to be the total noise floor when the phase noise level at a given offset was lower than the thermal noise floor. This issue is fixed and RF Budget simulations now calculate the total noise floor correctly as the sum of both phase and thermal noise.
User Interface
– Default document names and file paths no longer contain a whitespace on Linux.
– When the Tuner slider is selected, scrolling the mouse wheel now moves the slider in increments corresponding to the Step Size.
– Updated the font and background colors used in the Simulation window for improved distinction between job Type and State.
– An error message is now issued on Linux when attempting to save a project when there is insufficient disk space.
– Wizards now display with the correct names in the Add Existing Item dialog box for User Folders.
– Duplicating or copying a modified schematic to the clipboard no longer removes the modified icon overlay.
– The F3 key now works correctly to Find Next when searching in the Status window when the Design Notes window is also open.
– Changes to a document or Project Options RF Frequencies tab Data Entry Units are now correctly retained after closing the dialog box.
– Restored element description tooltips in the Element Browser when the description is longer than the display frame.
– Duplicate EM subcircuits no longer display in the Project Browser after renaming an EM subcircuit.-
– When choosing New Circuit Symbol File, the unnecessary New Circuit Symbol dialog box no longer displays.
– Right-clicking on an LPF in the Layout Manager and choosing Edit as Text now opens the text editor when the Layout Manager is set to Auto-hide.
– In the Add/Modify Measurement dialog box, the Measurement Component parameter for nonlinear measurements no longer resets when changing simulators.
– Fixed an occasional crash when closing the Tuner window.
– Fixed a crash that could occur after editing rich text boxes.