Radom Optimization for Airborne Jammers

Robin Brorsson (Royal Institute of Technology in Stockholm)

These studies are done in behalf of Saab AB AVITRONICS in Järfälla in the form of a thesis at the Royal Institute of Technology in Stockholm. The task was to examine the parameters that plays a role in the construction of modern radomes operating in broadband applications. This was interesting for Saab to get an indication of which way they should go at the new development of radomes for the next generation of equipment for electronic warfare. After a thorough analysis of the influencing parameters, a optimization application was made to get a automated way to get a radome design by specifying data on the radome size, airloads, materials, etc. 

This is to minimize the time of the laborious work that radome development implies. This was solved by letting ANSYS calculate the strength of the radome structure and MATLAB calculate electromagnetic data and cost models of different sizes and materials. All these parameters woven together with the optimization tool modeFRONTIER picks data from the respective program and perform an optimization algorithm and then iterate a step and sends this data to calculation programs for the new input data. In the end, we have received a converged point with our optimal solution. For the presumptions and limitations for which applied for this thesis, the result was pretty intuitive. That is to say that the smaller radome - the less material is needed and lower manufacturing costs results in the cheapest solution possible. The reality is not so simple. Where you have to take more of the electrical details such as the effect on the transmitter as a major factor.