Communications
Installed Performance Of Communication Antenna Arrays Whitepaper
The integral equation solver in CST MICROWAVE STUDIO (CST MWS) enables the efficient and accurate modeling of large electrical structures with fine details, a result published in the white paper titled, 'Installed Performance of Communication Antenna Arrays'. The white paper explores how electromagnetic simulation can be utilized when designing antennas in sub-optimal positions. Solvers, such as the integral equation solver are presented, detailing their accurate predictions for minimizing the loss of omnidirectionality in antenna arrays.
The The favoured location for any omnidirectional antenna when installed on a tower is at the very top of the structure. In that way, the omnidirectional performance of the antenna can be realised when it is deployed. Unfortunately, it is often not practically possible to mount the antenna in this location. Generally a mast will have multiple antennas located on the same structure, and several of these antennas will be omnidirectional in characteristic. Consequently, a compromise must often be reached where an omnidirectional antenna is mounted on a boom. The boom is intended to be long enough to prevent the neighbouring tower structure from disrupting the natural antenna omnidirectional pattern. Many systems utilise multiple antenna techniques, to enhance the robustness of the system. Such systems will inevitably lead to the requirement to install omnidirectional antennas in a position on a tower where interaction between the tower structure and the antenna is inevitable.
Download the full Whitepaper below.