V-Lox is a high performance computational electromagnetics simulation tool incorporating the latest advances in hardware and algorithmic acceleration techniques.  V-Lox uses a rigorous formulation based on the Method of Moments to ensure accurate and efficient solutions to antenna, scattering, and microwave circuit problems.  With the ability to handle geometries composed of arbitrary metallic and material (dielectric and magnetic) objects, V-Lox is ideally suited to handle all of your advanced modeling requirements.

New in Version 2.2!

V-Lox Version 2.2 released in November 2016.  New features and improvements include:

  • New matrix compression algorithms improve runtime performance by up to 6X
  • New support for GPU-accelerated direct solver
  • Support for latest generation NVIDIA GPUs
  • Improved method for solving problems involving materials with frequency-dependent properties

With of the latest version of V-Lox you can not only solve larger problems faster but also solve problems not previously thought possible. V-Lox can now solve problems in minutes or hours that took days or weeks even only a year ago.  We recently demonstrated accurate solution of a problem with 1 million unknowns in only 8 hours on a single workstation. Contact us to see your Solutions Accelerated.

Application Areas


V-Lox provides users with the ability to model complex antenna types:

Focusing Lens

Focusing lens illuminated by a WR90 waveguide horn. The focusing effect of the lens and higher order perturbations are evident using V-Lox’s near fields analysis capability.

  • Wire antennas
  • Microstrip antennas
  • Aperture antennas
  • Slot antennas
  • Horn antennas
  • Wideband antennas
  • Conformal antennas
  • Embedded antennas
  • Fabric antennas
  • Lens antennas
  • And many more…

V-Lox also supports antenna placement analysis.  Using V-Lox’s fast direct solver, users are able to explore numerous antenna positions and orientations while minimizing total runtime and maximizing solution fidelity.


V-Lox provides users with a simple to use, but sophisticated, capability for analyzing scattering from virtually any object.  V-Lox provides efficient solvers for both electrically small and electrically large problems.  Since engineers typically want to know scattering over many angles of incidence, V-Lox employs a fast direct solver as opposed to an iterative method such as MLFMA.  Our fast direct solver has the additional advantage of achieving “direct solution” accuracy.  Fast iterative solvers often corrupt the magnitude and especially the phase information of the scattered field, which is particularly problematic when performing wideband analysis.  V-Lox’s fast direct solver supports accurate and efficient solutions for both narrowband and wideband analysis.


V-Lox ‘s Fast Direct solver provides accurate solution to challenging wideband imaging problems quickly and efficiently.

V-Lox provides users with highly accurate wideband solution to challenging scattering problems such as objects with complex delayed returns.

V-Lox provides users with highly accurate wideband solution to challenging scattering problems such as objects with complex delayed returns.

Microwave Circuits

Many devices require analysis with a rigorous EM solver due to the electrical size of the components involved.  V-Lox is capable of outputting Y, Z, and S-parameters for arbitrary N-port networks as well as calculating near fields and radiating fields for virtually any passive microwave device.  V-Lox’s fast direct solver allows rigorous analysis of electrically large networks and accurate computation of S-parameters, notoriously difficult problems for iterative solvers.

V-Lox provides simple, accurate, and fast solutions to passive RF circuit models such as this bandpass filter.

V-Lox provides simple, accurate, and fast solutions to passive RF circuit models such as this bandpass filter.


V-Lox offers users a number of state-of-the-art EM modeling features:

  • Flexible mesh import
  • Arbitrary metallic, dielectric, and magnetic geometries
  • Multi-threaded matrix fill, solve, and post-processing
  • Multiple excitations for scattering, antenna, and microwave analysis
  • Passive circuit loads
  • Multi-threaded and GPU-accelerated direct solver
  • Fast matrix fill and direct solution using novel matrix compression techniques for electrically large problems
  • Out-of-core solver with job checkpointing
  • Multi-GPU acceleration provides significant performance boost over CPU
Partitioned geometry for fast solution

Partitioned geometry for fast matrix solution. Geometry cluster interactions correspond to blocks in the V-Lox system matrix.

Supported Platforms

V-Lox supports the following operating systems :

  • Ubuntu 12.x, 14.x
  • Red Hat Enterprise Linux 6.x

V-Lox is supported on Intel and AMD multicore/many-core 64-bit architectures. V-Lox is not intended to be used on 32-bit platforms. In general, performance can be increased using faster processors with increasing amounts of RAM.  GPU acceleration provided when using NVIDIA graphics processors.


IERUS offers a number of flexible licensing options for small businesses, large businesses, government agencies, and universities.  V-Lox is available with key-locked or floating network license terms.  Time options include 180-day or perpetual licenses.  V-Lox is licensed to support your particular solution needs.  Solver options include Scattering, Antenna, and Full licenses.  Support includes access to our knowledgeable support staff for the duration of the support contract terms.

At IERUS, we believe in pricing transparency for our customers.  Standard pricing information for a perpetual license is contained in the table below.  Prices include 12 months of support and free upgrades.  Compare our pricing and performance to our competitors, and we are sure you will choose V-Lox!

V-Lox V-Lox Scattering V-Lox Antennas
Single License (Single Machine)  $24,000  $10,800  $20,400
Single License (Network)  $32,400  $14,580  $27,540

Contact us to purchase or for a quote on volume purchases.