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Design engineers characterize RF designs by simulating the complete characteristics of components, such as amplifiers, filters, mixers, and passive devices. Use RF simulation software to enter the schematic by interconnecting the components' inputs and outputs and defining the input signal source and output load condition. Typically, the output load matches the system’s output impedance.
A common simulation application is to characterize the phase noise of the circuit, as this increases the error rate in vector-modulated signals. Measure the phase noise by sweeping the input signal frequency to span the bandwidth and setting the carrier frequency. Select the phase noise spectrum as the analysis type. The simulation software plots a graph showing the phase noise versus frequency, where the unit of phase noise is dBc. Achieve an optimal design choice by iteratively running the simulation using different components.
Additional resources for RF circuit simulation
Integrating 3D multi-technologies into mmWave phased array designs requires automating wafer-level assembly and packaging. Learn how EDA automation tools enable engineers to integrate different modules to 5G UEs without the need for design modification or updates.
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Designing a stable high-frequency RF power amplifier (PA) requires implementing multiple stability analysis techniques efficiently in one simulation. Learn how to use a unified simulation approach to perform robust stability analysis under all loading conditions.
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Designing a high-efficiency power amplifier (PA) requires accurately simulating how linear it will be under modulated signal stimuli with digital pre-distortion (DPD) applied. Learn how to run robust DPD simulations for power amplifiers early in the design phase.
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