The version 0.23 of scikit-rf includes a lot of improvements and bug fixes (with a huge work from @Ttl , @mhuser and @biergaizi !)

This new release also includes a new feature, the Quality factor class Qfactor, which allows determining the loaded and unloaded quality factors of a Network.

The development activity of scikit-rf continues to grow! The scikit-rf development team has been consolidated with additional collaborators: @Ttl , @mhuser, @FranzForstmayr and @Vinc0110. Welcome and thank you!

New Features

• Q-factor(s) fitting by @jhillairet in #637

Improvements

Network and Media

• Add support for initializing network with different parameters by @Ttl in #657
• More accurate Coaxial resistance model by @Ttl in #649
• Z0 getter fix by @Ttl in #664
• Improve s2z, z2s, s2y and y2s accuracy by @Ttl in #661
• cpw warns if t < 3 * skin_depth by @mhuser in #665
• Consistent Network handling with different s_def by @Ttl in #655
• Refactor CPW media to fix #667 by @mhuser in #676
• Fixing unhandled corner case in Frequency by @jhillairet in #700
• Putting back temporarely .f and .npoints setter for warning users by @jhillairet in #714
• warns of future deprecation of media line parameter embed by @mhuser in #715
• Refactor MLine Media to follow qucs implementation by @mhuser in #650

Circuit

• Mark Circuit Ports with attribute instead of name by @Ttl in #671

Instruments

• Fixed NanoVNA backend configuration for PyVISA-py by @Vinc0110 in #669
• Fix compatibility with python 3.10 by @jjoonathan in #674
• HP8510C Sweep Plan by @jjoonathan in #675

Touchstone, MDIF

• Fix write_touchstone with complex or non-equal z0 by @Ttl in #672
• Add NetworkSet.write_mdif() method to export NetworkSet to a generalized MDIF file by @jrmagers in #680

Calibration

• LRRM fix for unsymmetric thru, non-iterative lc fit by @Ttl in #682
• IEEEP370 Flip FIX-2 and minor improvements by @mhuser in #698
• Add forced_z11x to IEEEP370_SE_NZC_2xThru and correct typo by @mhuser in #708

Vector Fitting

• Vector Fitting: Some convenience updates by @Vinc0110 in #673
• Vector Fitting: Minor updates by @Vinc0110 in #706

Documentation

• Convert All Documentation Links to Relative Path Links by @biergaizi in #713
• Update logos by @jhillairet in #716
• New example: Defining SOLT calibration standards. by @biergaizi in #663
• Fix SOLT cal kit example HTML rendering by @Ttl in #686
• Adding the IEEEP370 deembedding methods to the docstring by @jhillairet in #689
• SOLT cal kit example: more formatting and typo fixes by @biergaizi in #690
• Minor changes in IEEE P370 doc by @jhillairet in #694
• New example: Defining SOLT calibration standards. by @biergaizi in #663
• Documentation updates by @jhillairet in #709
• Three Receivers Calibration: Add Reference to NanoVNA by @biergaizi in #712
• Three Receivers Calibration: clarify SOLT procedures and source port. by @biergaizi in #711
• Explain Isolation Calibration in SOLT calibration tutorial and example by @biergaizi in #710
• Add higher number of ports examples to se2gmm by @mhuser in #707

Bug fixes

• Avoid division by zero at 0 Hz in DistributedCircuit by @Ttl in #658
• Fix for #662 and other minor corrections by @Vinc0110 in #666
• fix #684 phase jumps in 2xthru deembedding by @mhuser in #687
• Remove comparison to CPW model from MTRL example by @Ttl in #695
• Vector Fitting: Bug fix for #677 and #702 by @Vinc0110 in #678
• drop_non_monotonic_increasing fix for 2D z0 shape by @Ttl in #705

Full Changelog: v0.22.1...v0.23.0