A 10-turn helical antenna is simulated in XFdtd^® to demonstrate the far-field circular polarization plotting capabilities of the software.

In this example XFdtd^® is applied to the classic problem of a thin metal shielding enclosure perforated by a slot. XFdtd is used to determine the power delivered to the enclosure and the electric field radiated from the slot.

XFdtd^® provides a wide variety of excitations, including both voltage and current sources and series/parallel RLC circuits. In this example a parallel plate capacitor is charged, first by a current source, then by a LaPlace static potential solver.

In this example an SAT file of a 18 port connector is imported into XFdtd^® and the S-Parameters are calculated.

Validation of Specific Absorption Rate (SAR) Calculation in XFdtd^® 6.0.

An optimum gain pyramidal horn antenna (see Antenna Theory and Design by W. Stutzman and G. Thiele, John Wiley & Sons, New York, 1981, pgs 413-415) was simulated using XFdtd^®.

This example demonstrates the ability of XFdtd^® 6 to include anisotropic dielectric materials with off-diagonal terms in the permittivity tensor.

This example illustrates the ability of XFdtd^® 6 to import CAD files, manipulate them, apply sources and make SAR calculations.

In this example XFdtd^® 6 is used to make calculations for an open-flanged waveguide with a specialized dielectric slab window material used to match the waveguide impedance to the impedance of a liquid located at the waveguide flange terminus.

Specific Anthropomorphic Mannequin (SAM) geometry is placed in different orientations relative to the coordinate system to perform SAR calculations.

A circularly polarized microstrip antenna is simulated in XFdtd^® and return loss results are compared to measurements.

A broad band antenna designed for WLAN applications is simulated in XFdtd^® using a variety of variable mesh configurations and the return loss is compared to measured results.

Analysis of Dual Frequency Inverted FL Antenna using XFdtd^®

Case Study: Using XFdtd^® to Position Antennas on an Aircraft.

The ability of XFdtd^® to generate arrays is used in this example of a three patch antenna array.

In this example XFdtd^® is used to compute the input impedance, radiation gain pattern, and SAR of a patch antenna embedded inside a human body.

This example shows the ability of XFdtd^® to import complicated CAD files, mesh them, and produce accurate results.

The same horn antenna geometry shown in other XFdtd^® examples on our web site is used here to demonstrate the ability of the MPI version of XFdtd.

XFdtd^® Bio-Pro now performs Ultra-Wide-Bandwidth (UWB) calculations of the interactions of transient electromagnetic fields with human bodies.

This simple Biconical Geometry utilizes two unique XFdtd^® features, timed switches and transient far zone field calculation. Two cones are statically charged and then discharged using a timed switch.

A special feature of XFdtd^® is its ability to include Timed Switches in calculations. This allows the user to change the configuration of the calculation geometry during a calculation.

See the results of a complex 17 wavelength-diameter spherical dielectric lens designed in AutoCAD and run in XFdtd^®.

A variation of a Luneberg lens simulated at 15GHz with XFdtd^®, formed by two concentric dielectric spheres.

The containment of the fields within the waveguide is clearly visible as the signal turns the corner and continues.

Microwave Circulator Geometry uses anisotropic magnetized ferrite to isolate one port while providing output to the other. Views of the geometry and a plot of the object's S-parameters are shown.

The XFdtd^® "thin wire" material is useful for simulating wire elements which have diameters much less than the cell size.

The bistatic scattering pattern from a thin conducting plate is calculated using XFdtd^® and compared with results calculated using the Method of Moments.

Illustrating the usefulness of XFdtd^® and the FDTD method in the design of implantable devices.

Spherical Bowl and Dipole Geometry from experiments performed by Ericsson simulating the effects of a cellular telephone on the brain. A full copy of the research paper is also available.

Simulating a sensor swallowed by a cow to aid in the study of effects of different types of feed on the cow's digestion.

XFdtd^® can be used for the analysis of coplanar stripline structures.

A Lange Coupler is used to test the validity of the FDTD method and XFdtd^® in the analysis of microstrip structures. Further reading on similar structures is also available in this example.

Since XFdtd^® includes frequency-dependent dielectric and magnetic materials, it is capable of making three-dimensional calculations for double negative materials, also called negative index materials and meta-materials. Learn how XFdtd can be applied to these new materials.

This example demonstrates how XFdtd^® can be used as the total solution for evaluating the performance and field effects of a radiating device.