Title :
System-level time-domain behavioral baseband modeling of RF blocks for mixed-signal simulation
Author :
Harasymiv, Ihor ; Jancke, Roland
Author_Institution :
Design Autom. Div., Fraunhofer Inst. for Integrated Circuits, Dresden, Germany
Abstract :
This article presents a short survey of existing baseband (BB) signal flow models of linear and nonlinear RF blocks for system-level (SL) time domain (TD) transient simulation using Spice-like simulators. Existing BB models of nonlinear PB amplifier are analyzed and a corrected version of a publicly available model is proposed. A new nonlinear BB model of a mixer based on multiple Fourier series is proposed and tested as Verilog-A model. In comparison to the pass band (PB) mixer model the proposed BB model allows a speedup of transient simulation about 2-3 orders of magnitude and saves also time for verification of RF sub-systems implemented later in top-down design process on transistor level.
Keywords :
Fourier series; mixers (circuits); radiofrequency amplifiers; time-domain analysis; transient analysis; BB signal flow models; PB mixer model; RF subsystems; SPICE-like simulators; Verilog-A model; baseband signal flow models; linear RF blocks; mixed-signal simulation; multiple Fourier series; nonlinear PB amplifier; nonlinear RF blocks; pass band mixer model; system-level time-domain behavioral baseband modeling; time-domain transient simulation; top-down design process; transistor level; Analytical models; Integrated circuit modeling; Maximum likelihood detection; Mixers; Nonlinear filters; Numerical models; Radio frequency; Spice-like simulators; Verilog-A; baseband signal and model; behavioral modeling; mixed-signal simulation; passband signal and model; transient response;
Conference_Titel :
Synthesis, Modeling, Analysis and Simulation Methods and Applications to Circuit Design (SMACD), 2012 International Conference on
Conference_Location :
Seville
Print_ISBN :
978-1-4673-0685-0
DOI :
10.1109/SMACD.2012.6339448
