Filter Design

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NI AWR Design Environment provides a complete platform to address all stages and types of filter development from lumped-element or distributed filters to more complex multiplexed, high-power, and high-Q cavity filters. Supporting the latest materials and topologies, NI AWR software enables filter designers to meet challenging performance metrics, size, cost, and time-to-market goals. 

What's New

  • Distributed Filters on PCBs can utilize novel structures created with EM-based optimization to improve performance and reduce size.
  • Cavity and Coupled Resonator Filters used in high-power applications benefit from a seamless design flow, starting from synthesis of the initial filter response through to final physical design.


Synthesize / Optimize / Realize 

  • iFilter - Accelerate design starts with this filter synthesis module within the NI AWR Design Environment, developed specifically for creating lumped-element and distributed filters based on user-defined filter responses. Supporting low-pass, high-pass, band-pass, and band-stop filters, the descriptive interface guides the user through realizable filters and options. 
  • Microwave Office - Coupled with iFilter, Microwave Office software enables RF engineers to quickly design filters, connect them directly to circuitry, and implement via automatic generation of schematics, result graphics, and tuning parameters/optimization goals.
  • AXIEM and Analyst™ - Perform electromagnetic verification for both planar filter structures as well as arbitrary 3D structures common to cavity filters with these EM technologies within NI AWR Design Environment.

Circuit / System / EM Simulation Products 

  • iFilter - Integrated filter synthesis module operating seamlessly within Microwave Office
  • iMatch - Automated impedance matching capabilities
  • Microwave Office - Circuit analysis
    • Design capture with industry-leading tuning
    • Linear and nonlinear circuit simulation
    • Synthesis, optimization, and yield analysis
  • Visual System Simulator™ - System and RF budget analysis with RF Inspector for filter solutions to address out-of-band spurious signals
  • AXIEM and Analyst - 3D planar and 3D finite element method (FEM) EM​​ analysis for fast and accurate modeling and optimization 
  • EM Socket - 3rd Party EM Tools - Interoperability with ANSYS, CST, and Sonnet EM software products

Models and Libraries

Manufacturing and Test

Supported Technologies

  • MMIC - Design flows and process design kits for working with GaAs/GaN foundries offering filter solutions based on lumped and transversal elements providing superior performance, tunable (agile) frequency coverage and smaller footprints
  • PCB - Single and multi-layer board modeling, simulation, and layout solutions supporting discrete LC (lumped element), distributed transmission lines and high Q ceramic filters
  • Modules - Multi-technology (MMIC/RFIC) and laminate package modeling for on/off-chip embedded filter solutions
  • Cavity Resonators – 3D EM analysis to simulate and optimize waveguide-based filters for high power telecommunications and aerospace/defense applications
  • BAW/SAW - Acoustic wave filters can be implemented with mathematical models in Microwave Office and implemented as PCells for further product development and module integration
  • Systems - Circuit and system co-simulation of wireless communication metrics, RF budgeting and spectral analysis 

Filter Design - Video Gallery