</table>
== Computational Environment Simulating the Patch Antenna on the Vehicle Roof ==
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 MHzFirst, we place the approximate dimensions patch antenna on the roof of the aircraft Golf model are 42.5 λ<sub>0</sub> x 22.66 λ<sub>0</sub> x 12.75 λ<sub>0</sub>. 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 as shown in the simulation timefigure below.
<table><tr><td>[https[Image://awsRoof patch.amazon.com/ Amazon Web Services] allows one to acquire high-performance compute instances png|thumb|left|640px| The location of the patch antenna on demand, and pay on a per-use basis. To be able to log into an Amazon instance via Remote Desktop Protocol (RDP), the [[EMvehicle roof.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.</td></tr></table>
<br clear="all"/>= Computational Environment ==
=Patch 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 λ<sub>0</sub> x 22.66 λ<sub>0</sub> x 12.75 λ<sub>0</sub>. 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. [https://aws.amazon.com/ Amazon Web Services] allows one to acquire high-performance compute instances on Roof=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.
Materials used in car model:
{| class="wikitable"
|-
! scope="col"| Material
! scope="col"| Relevant Components
of Golf Model
! scope="col"| ε<sub>r</sub>
! scope="col"| 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
|}
Simulation Information: