![]() ![]() The microstrip lines are inspired by this example.ĭirectory = 'ieeep370deembedding/' freq = rf. The target is to bisect s2xthru to get the left and right fixtures models and get DUT by deembedding from FIX-DUT-FIX. For example purpose the width is changed by 20% to show the effect of such a mismatch in the deembedding process. S2xthru is FIX-FIX and is the two prolongating lines connected in the middle without the DUT. ![]() This is convenient to vary parameters without leaving Python to operate another software to generate s-parameter files.ĭut is a Beatty structure with a 3xWidth microstrip segment connected left and right by two uniform 1xWidth microstrip.įdf is FIX-DUT-FIX, prolongating the DUT left and right lines (connector and launch not simulated). We use scikit-rf MLine media to simulate microstrip lines artifacts. Simulation of 2xThru, DUT and Fixture-DUT-Fixture ¶ The algorithms can be used with 2-port single-ended networks. Import skrf as rf import matplotlib.pyplot as plt import numpy as np from skrf.calibration import ( IEEEP370_SE_NZC_2xThru, IEEEP370_MM_NZC_2xThru, IEEEP370_SE_ZC_2xThru, IEEEP370_MM_ZC_2xThru ) from dia import MLine rf. The purpose of this notebook is to illustrate the scikit-rf implementation of the deembedding methods proposed within the IEEE P370 standard to remove the test fixture effects.įirst, let’s make the necessary Python import statements: The combination of just the two fixtures, such as a FIX-1 connected to a FIX-2, is referred to as a FIX-FIX structure or a 2x-Thru. The combination of the DUT and fixtures on either end is referred to as the composite structure or the FIX-DUT-FIX structure. The name of the fixture is shortened to FIX and the composite structure as FIX-DUT-FIX. The fixture attached to the single-ended DUT port 2 is labeled as FIX-2. The fixture attached to the single-ended DUT port 1 is labeled as FIX-1. In the examples below, and following the standard proposal on labelling, a 2-port DUT have one fixture attached to each of its port. It recommends methods and processes for ensuring the accuracy and consistency of measured data for signals with frequency content up to 50 GHz, in particular for removing test fixture and instrumentation effects. The IEEEP370 standards provides good practices for ensuring the quality of measured data for high-frequency electrical interconnects at frequencies up to 50 GHz. Mixed Mode Comparison with AICC De-Embedding Utility IEEEP370_MM_ZC_2xthru with impedance correction IEEEP370_MM_NZC_2xthru without impedance correction Single Ended Comparison with AICC De-Embedding Utility IEEEP370_SE_ZC_2xthru with impedance correction IEEEP370_SE_NZC_2xthru without impedance correction Simulation of 2xThru, DUT and Fixture-DUT-Fixture IEEEP370 Deembedding ¶ Table of Content ¶ ![]()
0 Comments
Leave a Reply. |