The Asymptotic Solver is a ray tracing solver which is efficient for extremely large structures where a full-wave solver is unnecessary. The Asymptotic Solver is based on the Shooting Bouncing Ray (SBR) method, an extension to physical optics, and is capable of tackling simulations with an electric size of many thousands of wavelengths.

Applications:

- Electrically very large structures
- Installed performance of antennas
- Scattering analysis

The Eigenmode Solver is a 3D solver for simulating resonant structures, incorporating the Advanced Krylov Subspace method (AKS), and the Jacobi-Davidson method (JDM). Common applications of the Eigenmode Solver are highly-resonant filter structures, high-Q particle accelerator cavities, and slow wave structures such as travelling wave tubes. The Eigenmode Solver supports sensitivity analysis, allowing the detuning effect of structural deformation to be calculated directly.

Applications:

- Filters
- Cavities
- Metamaterials and periodic structures

Filter Designer 2D (FD2D) is a planar filter synthesis tool based on well-respected and mature software from Nuhertz Technologies. FD2D contains a database with a wide variety of filter types, including both lumped element and distributed element implementations. Users input the specifications of the filter – including both the frequency response and any physical limitations, such as the maximum size of the filter and the properties of the substrate – and Filter Designer 2D will automatically suggest a design. With a single button click, fully parametric models of this design can be created for either circuit simulation or full-wave 3D simulation.

**Applications:**

- Planar filters
- Circuit filters

Filter Designer 3D (FD3D) is a synthesis tool for designing bandpass and diplexer filters. FD3D simplifies the design process substantially by automatically calculating coupling matrices and suggesting filter topologies that match the user’s requirements. These requirements can include multiple pass-bands and arbitrary transmission and reflection zeroes. The synthesized filter is used to generate a 3D model of the design, which can be the basis of a full-wave simulation. FD3D also features a technique to extract the coupling matrix from a signal response, which in turn is useful for the direct optimization of 3D models, as well as assisting in the tuning of filter hardware using real-time measurements.

**Applications:**

- Cross-coupled filters for different electromagnetic technologies (e.g. cavities, microstrip, dielectrics)
- Assistive tuning for filter hardware (with vector network analyzer link)

The Frequency Domain Solver is a powerful multi-purpose 3D full-wave solver, based on the finite element method (FEM), that offers excellent simulation performance for many types of component. Because the Frequency Domain Solver can calculate all ports at the same time, it is also a very efficient way to simulate multi-port systems such as connectors and arrays. The Frequency Domain Solver includes a model-order reduction (MOR) feature which can speed up the simulation of resonant structures such as filters.**Applications:**

- General high-frequency applications using small-to-medium sized models
- Resonant structures
- Multi-port systems
- 3D electronics

The Integral Equation Solver is a 3D full-wave solver, based on the method of moments (MOM) technique with multilevel fast multipole method (MLFMM). The Integral Equation Solver uses a surface integral technique, which makes it much more efficient than full volume methods when simulating large models with lots of empty space. The Integral Equation Solver includes a characteristic mode analysis (CMA) feature which calculates the modes supported by a structure.**Applications:**

- High-frequency applications using electrically large models
- Installed performance
- Characteristic mode analysis

The Multilayer Solver is a 3D full-wave solver, based on the method of moments (MOM) technique. The Multilayer Solver uses a surface integral technique and is optimized for simulating planar microwave structures. The Multilayer Solver includes a characteristic mode analysis (CMA) feature which calculates the modes supported by a structure.**Applications:**

- MMIC
- Feeding networks
- Planar antennas

The Time Domain Solver is a powerful and versatile multi-purpose 3D full-wave solver, with both finite integration technique (FIT) and transmission line matrix (TLM) implementations included in a single package. The Time Domain Solver can perform broadband simulations in a single run. Support for hardware acceleration and MPI cluster computing also makes the solver suitable for extremely large, complex and detail-rich simulations.**Applications:**

- General high-frequency applications using medium-to-large models
- Transient effects
- 3D electronics

The Hybrid Solver Task allows the Time Domain, Frequency Domain, Integral Equation and Asymptotic Solvers to be linked for hybrid simulation. For simulation projects that involve very wide frequency bands or electrically large structures with very fine details, calculations can be made much more efficient by using different solvers on different parts. Simulated fields are transferred between solvers through field sources, with a bidirectional link between the solvers for more accurate simulation.**Applications:**

- Small antennas on very large structures
- EMC simulation
- Human body simulation in complex environments