Application Examples

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The Applications Examples library contains nearly 100 demonstrations of how Remcom engineers solved problems in categories ranging from antenna design and placement, biomedical, wireless communications, microwave circuits, radiowave propagation, and more. Please explore the library, which can be sorted by application type or product.

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Thursday
Sep292016

5G Massive MIMO Outdoor Communications Analysis 

In this example the signal transmission between a massive MIMO base station and a mobile device located in downtown Rosslyn is analyzed using Wireless InSite’s MIMO capability.

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Monday
Jun062016

Antenna Coupling on an Aircraft

XGtd’s S-parameter calculations and Touchstone file export are used to analyze the coupling between antennas mounted to the fuselage of a Boeing 757.

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Wednesday
Oct072015

Modeling an Ad Hoc Network With Transceivers

Ad hoc peer-to-peer networks can provide reliable communications in emergency situations where fixed infrastructures, like base stations, may not be available. This example demonstrates Wireless InSite's Transceivers capability.

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Wednesday
Jul292015

Optimizing an LTE Antenna's Matching Network

A simple antenna for LTE band operation is added to the PC board of a smartphone in XFdtd and the matching circuit is tuned for operation in multiple frequency bands. The component values in the matching network are chosen so that system efficiency is maximized.

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Friday
May012015

Matching Network Design for GPS/Bluetooth Antenna

XFdtd's Circuit Element Optimizer is used to determine optimal matching component values for a dual purpose antenna.

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Wednesday
Apr082015

Touchscreen 3x4 Diamond

The capacitance matrices for a 3x4 touchscreen are analyzed in an unloaded and loaded case. Based on the changes in capacitance, the location of the 1 mm stylus is identified.

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Tuesday
Nov112014

Crosshole Ground Penetrating Radar

Crosshole Ground Penetrating Radar is examined in XFdtd. The ability to find COP and MOG data is shown.

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Monday
Oct132014

Probe for Thermal Ablation 

An antenna design for hepatic microwave ablation is simulated in a dielectric emulating liver tissue to determine antenna performance, SAR distribution, and thermal response.

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Friday
Aug152014

Thermal Sensor in 64 MHz Birdcage Coil

A lowpass birdcage coil designed to operate at 64 MHz is simulated to show B fields in both unloaded and loaded conditions. When loaded with a heterogeneous human head model, the temperature rise caused by exposure to the fields of the coil is computed using XFdtd’s biological thermal sensor.

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Tuesday
Apr292014

Impact of Substrate Thickness on Rotman Lens Designs

The Rotman Lens Designer (RLD) software output is compared to full wave results from XFdtd for a single lens design realized using different thicknesses of the same dielectric material to determine best design practices. The RLD software gives very similar output regardless of the substrate thickness while the XFdtd simulation shows that the thickness can cause varied results. The variations are primarily due to the variations in the transmission line width and layout caused by the changes necessary to maintain a 50-ohm impedance. This example shows that for some thicknesses the results between RLD and XFdtd have good correlation while for others, particularly very thin or very thick substrates, the designs require several iterations before good correlation is found.

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Tuesday
Apr292014

Rotman Lens Designer Performance vs. Frequency

The Rotman Lens Designer (RLD) software output is compared to full wave results from XFdtd for a broad range of design frequencies to validate the performance of the software in different bands of operation. The results show the correlation between results from RLD is consistent over the tested range from 4.8 to 78 GHz.

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Tuesday
Apr082014

Rotman Lens Sidewall Curvature Impact on Performance: RLD vs. XFdtd Simulation Results

The performance impact of the sidewall curvature of a Rotman Lens design is evaluated by comparison of several designs created in Rotman Lens Designer (RLD) with full-wave results simulated by XFdtd. RLD calculations for array factor and S-parameters are unaffected by the curvature of the lens sidewalls but the actual lens will have some reflected fields from these walls which will impact performance. This example shows the effects of the sidewall reflections for 8x8, 16x16 and 32x32 lenses.

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Thursday
Feb272014

Hip-Worn Cellular Telephone on Moving Man

The performance of a basic cellular telephone worn on the hip of a human male is studied for varying positions of the wearer.

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Wednesday
Sep042013

Printed PIFA Antenna

In this example a simple PIFA antenna is simulated and the return loss validated against measured data.

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Wednesday
Sep042013

Lightning Strike on Wind Turbine

In this example, the impacts of a lightning strike on a simplified wind turbine are compared for different strike locations by comparing the magnetic fields created inside the nacelle.

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Monday
Jul222013

Communication Analysis in a Culvert

Remcom’s Wireless InSite provides several extensions that are in addition to its standard capabilities. One of these extensions provides a limited method to model communication within culverts, mines, or tunnels. Culverts, mines, or tunnels can be designed within the software and used for analysis. This example demonstrates setting up a culvert and modeling a communication system.

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Monday
Jul222013

Modeling Uncertainty in Urban Propagation Using Monte Carlo Theory

Remcom’s Wireless Insite provides a way to handle uncertainty in a scenario through the use of Monte Carlo parameters for elements within the scenario. One type of Monte Carlo parameter is the Monte Carlo material, which allows the calculation engine to vary its parameters without re-running the scenario. This example demonstrates how to utilize Monte Carlo materials within Wireless InSite to vary material properties quickly and efficiently.

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Monday
Jul222013

Overcoming Unknown Layout Limitations when Modeling Outdoor-to-Indoor Propagation

A full 3D model requires the interior floor plan of a building to be known in order to accurately model the power within the building; however, in some cases the interior layout is not known and in others there is not enough detail to create an accurate model. Wireless InSite has a hybrid method that combines the full 3D ray tracing model (X3D) with an empirical model called COST 231 to handle uncertainty with the interior layout. This example demonstrates setting up a typical scenario using the hybrid method.

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Monday
Jul222013

Maximum Permissible Exposure Analysis in an Urban Environment

Remcom’s Wireless InSite has the ability to model Maximum Permissible Exposure (MPE) thresholds based on the standards set by the IEEE for radio frequency energy exposure to people in controlled and uncontrolled environments. MPE is equivalent to the term "Permissible Exposure Limits (PEL)" referenced in other standards. Using this capability, Wireless InSite can be used to determine if there is a hazard to personnel from a particular high-power EM source. This output is displayed as color coded hazard zones within the GUI of Wireless InSite.

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Friday
May032013

Multiple Transmitter Analysis

Remcom’s Wireless InSite provides an efficient , powerful way to analyze a multiple input scenario within an urban environment. This example demonstrates how to utilize Wireless InSite’s Communication Analysis Toolbox to calculate total combined power and strongest transmitter for an urban environment.

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