Communications/Radar Systems

Cadence® AWR® Visual System Simulator™ (VSS) RF/wireless communications and radar system design software provides link budget and spurious heritage analysis, along with end-to-end time-domain and circuit-envelope simulations. With AWR VSS software, wireless design teams apply behavioral, impedance-aware RF models and baseband signal processing blocks to develop and optimize system architectures and determine component specifications for best overall performance. Users can simulate system metrics such as adjacent channel power ratio (ACPR), bit-error rate (BER), and error vector magnitude (EVM) with pre-configured and user-defined virtual testbenches, as well as identify the source of spurious products and other system impairments.

The AWR VSS Advantage


Impedance-aware behavioral modeling for rapid architectural design, budget and spur analysis, and component specification


Circuit and electromagnetic (EM) co-simulation to incorporate accurate component-level design into RF-to-baseband communications system development


Virtual testbenches provide pre-configured modulated signal sources and measurements for popular wireless communication standards

Features at a Glance

  • Behavioral Models – Incorporate the impact of component voltage standing-wave ratio (VSWR) on system link budget and other performance metrics

  • Circuit Envelope – Analysis of digitally modulated RF circuits including EVM, BER, and ACPR simulations

  • Planning/Analysis Tools – Budget analysis provides cascaded RF measurements, frequency planner (option), and spurious heritage analysis 

  • Co-Simulation – With Cadence® AWR® Microwave Office® circuit design software
  • Phased-Array Design – Configure and optimize beam steering / multiple-in-multiple-out (MIMO) antenna arrays and feed structures directly from antenna simulations

  • Testbenches – Wireless standards including 5G, LTE, narrowband internet of things (NB-IoT), and more

  • Libraries – Radar and 5G signals (option) and waveforms, inclusive of testbenches

  • Connect simulations and hardware testing – Simulate VSS designs with standards-compliant signal generation and analysis tools R&S® WinIQSIM2 and R&S VSE from Rohde & Schwarz