Patch in Freespace
Computational Environment
The Mirage III CAD model has an approximate length of 15m, a wingspan of 8m, and an approximate height of 4.5m. Expressed in free-space wavelengths at 850 MHz, the approximate dimensions of the aircraft model are 42.5 λ0 x 22.66 λ0 x 12.75 λ0. Thus, for the purposes of EM.Tempo, we need to solve a region of about 12,279 cubic wavelengths. For problems of this size, a very large CPU memory is needed, and a high-performance, multi-core CPU is desirable to reduce the simulation time.
Amazon Web Services allows one to acquire high-performance compute instances on demand, and pay on a per-use basis. To be able to log into an Amazon instance via Remote Desktop Protocol (RDP), the EM.Cube license must allow terminal services. For the purpose of this project, we used a c4.4xlarge instance running Windows Server 2012. This instance has 30 GB of RAM memory, and 16 virtual CPU cores. The CPU for this instance is an Intel Xeon E5-2666 v3 (Haswell) processor.
Patch on Roof
Materials used in car model:
Material | Relevant Components
of Golf Model |
εr | σ |
---|---|---|---|
PEC | car body | 1 | ∞ |
Glass | car windows | 6.5 | 0.005 |
Plastic | head-light covers, brake-light covers,
license plate mounts |
2.2 | 0.0 |
Rubber | tires | 2.9 | 0.005 |
Aluminum | wheel-rims | 1 | 3800000 |
Cement | road | 1.9 | 0.0 |