Issue link: https://resources.system-analysis.cadence.com/i/1339378
RESOURCE SPOTLIGHT E-Learning Portal VSS RF Link Budget Analysis This e-learning video series demonstrates how to use the AWR Visual System Simulator™ (VSS) software and its imped- ance-mismatch-aware, linear, and nonlinear RF/microwave behavioral models to perform budget analysis. These design tools are useful for system architecture development and RF component specification for communications system design. f Part 1 – Build a basic RF link in AWR VSS using a behavioral filter model and how to replace it with an actual circuit model derived from Microwave Office circuit design software and the iFilter™ filter synthesis wizard f Part 2 – Model a filter with the AWR VSS behavioral filter model f Part 3 – Model a mixer with the AWR VSS powerful and intelligent mixer model f Part 4 – Modulated signal passing through an RF link path and system metrics in the time domain like the eye diagram and spectrum plot, as well as EVM, ACPR, ACLR, and BER measurements Phase Noise Modeling in VSS This e-learning video series explains how to use the AWR VSS time-domain engine to model phase noise in communications and radar system design. The three main forms of noise modeled in the AWR VSS program are thermal circuit noise, channel noise, and phase noise. Circuit noise and channel noise are both based on white Gaussian noise. Circuit noise is primarily specified as a noise temperature, a noise figure, or equivalent noise voltage or current sources. Channel noise is typically specified in noise power spectral density (noise PSD). RF budget analysis simulations primarily work with circuit noise, which is frequency dependent, although they also provide limited support for channel noise. Time domain simulations are most effective when modeling white channel noise. f Part 1 – Setting up the system schematic to perform phase noise accurately to a very small offset from the carrier frequency f Part 2 – Implementing phase noise simulation using a phase noise mask placed directly on the in-phase and quadrature signals from a 64-quadrature amplitude modulation (QAM) source driving a receiver to measure the error vector magnitude (EVM) f Part 3 – Distinguishing the difference between correlated and uncorrelated noise in AWR VSS calculations Learn more at awr.com/elearning. 7 www.cadence.com/go/awr