Applications for RF filters


PZFlex provides users with a unique set of capabilities for simulating a range of RF filters such as SAWs, BAWs, FBARs, and SMRs. Traditionally too computationally intense for general FEA, PZFlex breaks this barrier and facilitates high-level, coupled design work that was previously impossible. Easily extract key industry metrics such as Electrical Impedance, phase shifts, S-parameters, Bandwidth and more. Through simulation, engineers can slash their prototype fabrication costs and simultaneously expedite design times.

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  • Coupled Circuits

    Coupled Circuits
    Include the effects of embedded circuitry on performance. Electrical components can be connected to drive or receive electrode configurations.

  • Arbitrary Electrodes

    Arbitrary Electrodes
    Define any number of electrodes with arbitrary shapes and drive signals. Utilise non-regular shapes to enhance performance and reduce parasitic resonances.

  • Advanced Piezoelectric Materials

    Advanced Piezoelectric Materials
    Define full mechanical, piezoelectric and dielectric tensors to represent your materials. Supports simple transposition of properties for arbitrary cuts and symmetries.

  • S-Parameters

    Directly extract S-parameters vs Frequency from electrical signal information. For an N-Port network, only N-simulations are required to fully capture metrics.

  • Material Characterization Tools

    Material Characterization Tools
    Utilise existing experimental data to run numerical optimisation to extract more precise, relevant material properties for accurate simulations.

  • Full 3D Models

    Full 3D Models
    Reduce approximation and fully explore your design space by modelling complete geometries. Import from CAD or other 3rd party tools to enhance workflow.

  • Full Electro-Mechanical Solution

    Full Electro-Mechanical Solution
    Coupled elasto-dynamic and piezoelectric effects to analyse large devices such as SAWs, BAWs, FBARs, SMRs and more.

  • Ultra-Fast Solvers

    Ultra-Fast Solvers
    Deliver results in a fraction of the time of other FEA codes to accelerate design cycles and slash cost-bases. Parallelise runs to achieve unmatched efficiencies.


PZFlex has been used to simulate Micromachined Ultrasonic Transducers for over 15 years. With the capability for large piezoelectric & electrostatic calculations, users can create and analyse 3D array structures to investigate Key Performance Metrics such as inter-element cross-talk, transmit-receive sensitivity, bandwidth and anything else captured during experimentation. Through PZFlex, engineers can drastically reduce the requirement for physical fabrications and drive down development costs.

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  • Piezoelectric Membranes

    Piezoelectric Membranes
    Generate membrane behaviour from thin piezoelectric materials excited by arbitrary voltages. Structures can include thin passive and active layers.

  • Acoustic-Structure Coupling

    Acoustic-Structure Coupling
    Automatic coupling of the structural mechanicals to fluid & solid loads enables users to easily explore the acoustic field properties of their devices.

  • Electrostatic Solver

    Electrostatic Solver
    Capture membrane deformation due to electric field strength with 3D electrostatic solvers. Changes in membrane position create corresponding changes in Electric Field Strength.

  • 3D Arrays

    3D Arrays
    With efficient solvers it is possible to simulate multi-element arrays in a single simulation to capture cross-talk effects on overall system performance.

  • Nonlinear Behavior

    Nonlinear Behavior
    Include nonlinear geometric effects as the membrane material stiffens with deformation, and nonlinear electrostatic fields as structure is updated during simulation.

  • Complex Transmission Loads

    Complex Transmission Loads
    Import realistic material maps into the simulation to represent multi-layered, or tissue-like load environments.

  • Transient Simulations

    Transient Simulations
    Entire system performance can be captured in a single time-domain simulation, providing unique insights into the complex coupled physics involved.

  • Contact Effects
    Contact Effects
    Collapse mode behaviour effects resonance and efficiency of CMUT sensors. Capture these effects in the design to optimise system performance.