Antenna Placement Analysis (On-Platform)
and Integrated Antennas
Remcom’s antenna modeling software tools ensure proper design and placement of antennas in almost any application. Our simulation tools can work alone or together for a complete analysis of how an antenna will perform: simulate 3D fields in XFdtd, then import the antenna into XGtd to determine optimal placement on a large structure such as a satellite, aircraft, or ship. Or, import into Wireless InSite to see how the antenna’s signal is affected as a vehicle moves through a realistic city or rural scene.
The following example investigates WiFi throughput coverage in a house provided by 802.11ac routers operating at 5 GHz using an 80 MHz bandwidth. The geometry for the house was imported from a CAD file and a flat terrain was placed underneath the house.
This example analyzes the coupling between four circular patch antennas mounted on the sides of a Boeing 757. The antennas transmit and receive at a frequency of 2.4 GHz. Coupling between each antenna is characterized using XGtd’s S-Parameter output, which can be displayed in the user interface or exported to a v1.1 Touchstone file.
The performance of a basic cellular telephone worn on the hip of a human male is studied for varying positions of the wearer.
The exposure to a driver in a car from a car-mounted VHF radio is examined. Specifically, the SAR and electric field strength in the human are observed.
Electromagnetic simulation has been used by RF engineers for many years to aid the design of automotive radar sensors, but the increasing demands of advanced driver assistance systems (ADAS) are changing the methods used. This paper introduces FDTD’s advantages for automotive radar circuit and systems level designers, including simulation of very large problems, more efficient memory requirements, and the ability to reveal sources of coupling.
This whitepaper demonstrates how XFdtd's time-domain approach enables rapid development by allowing engineers to determine the performance of a fully detailed sensor model installed behind a piece of fascia without needing to build prototypes and run tests in an anechoic chamber. The analysis of a 25 GHz sensor frames the discussion.
This presentation demonstrates how the 3D ray tracing code in Wireless InSite can accurately predict received power coverage even in a multi-room environment containing many walls and different materials types. In order to verify the accuracy of the code, the floor plan of Remcom’s business offices was modeled in the software with a WiFi antenna and a third party tool was used to create a coverage plot of the received power throughout several of the suites.
Successful integration of an antenna onto a vehicle platform poses many challenges. This paper provides a variety of examples of how modeling and simulation can be used to analyze antenna performance, identify problems, and evaluate potential solutions.