Understanding the factors affecting antenna performance when installed on real-world platforms is crucial to a sustainable design process.
Antennas are virtually everywhere. From commercial applications such as smartphones, RFID tags, and wireless printers, to defense applications such as phased array antennas for aircraft radar systems or autonomous vehicles, to integrated ground-based communication systems. Electromagnetic simulation of antenna design and its interaction with the entire system allows designers to evaluate “what if” real life scenarios.
Physics-based Antenna Simulation
The complexities of antenna design and installation make it very expensive to conduct multiple rounds of real-world tests. Ansys’ physics-based simulation makes it easy to understand and predict antenna performance during the design phase, speeding you through challenges in:
Ansys HFSS offers the full suite of simulation tools and technologies for antenna design and placement simulation. You can rely on HFSS for accurate results regarding the performance of your antennas, both as components and when integrated into an operating environment. Depending on the scale of the problem and results desired, you can select from a range of solver technologies and HPC enhancements available as add-ons.
Engineers responsible for integrating antennas onto platforms are typically interested in the installed performance of the antenna. In other words, they want to know how the presence of the platform changes the performance of the antenna.
Performance of the antenna is much different when installed on real-world vehicles and platforms than when installed on a big, flat ground plane in an anechoic chamber. Further, coupling between pairs of antenna can be radically different depending upon where the antennas are installed on the platform. But how can you predict how an antenna will perform when installed on a car, ship, aircraft or tower—short of going to the measurement range with the antenna already installed?
Savant takes that costly and nearly impossible measurement based prototyping process and reduces it to minutes on a typical desktop computer.
Solve Large-Scale Problems in a Connected World with HFSS SBR+
Ansys RF and microwave design software allows engineers to design, simulate, and validate the behaviour of complex, high-performance RF, microwave, and millimetre-wave devices in next generation wireless communication and defence systems.
By leveraging advanced electromagnetic-field simulators dynamically linked to powerful harmonic-balance and transient circuit simulation, Ansys software breaks the cycle of repeated design iterations and lengthy physical prototyping. With Ansys, engineering teams consistently achieve best-in-class design in a broad range of applications including antennas, phased arrays, passive RF/mW components, integrated multi-chip modules, advanced packaging, and RF PCBs.
Radio Frequency Interference
RF cosite interference poses serious problems in situations where multiple RF systems are located in a common environment.
Modern RF systems operate over much of the RF spectrum (10 KHz through 100+ GHz), using vastly different power levels and modulation schemes. Commercial and military RF systems are designed to performance specifications that dictate both in-band and out-of-band performance. Nonetheless, cosite interference can occur between RF systems that meet their specifications. When antennas are closely located, seemingly insignificant emissions or susceptibilities of transmitters and receivers can result in interference due to high coupling levels. Further, RF transmitter power levels, modulation schemes, harmonics and nonlinear behaviour lead to spectral growth both in-band and out-of-band that can overload receivers. In general, receivers have both in-band and out-of-band susceptibilities; mixer products, phase noise and dynamic range issues that make it necessary to consider their wideband performance to determine if they will function properly in a complex RF environment.
Ansys EMIT takes away the black magic of solving complex cosite interference problems through an intuitive workflow that identifies the root cause of problems. Whether you are considering a handheld device or a large military system, EMIT can help mitigate your most challenging cosite interference problems.
Solve RF Cosite Interference Issues with Ansys HFSS and EMIT
