In this chapter, the parallel electromagnetic (EM) computer code Higher Order Basis Based Integral Equation Solver (HOBBIES) presented in the earlier chapters is used to analyze challenging electromagnetic problems in the frequency domain. A unique feature of HOBBIES is the parallel out-of-core method of moments (MoM) based solver, as it can handle problems that cannot fit into the random access memory (RAM) of the computer systems, whether it be a laptop or a supercomputer. The parallel out-of-core solution feature of this code is a unique capability and is not readily available for most commercial codes. The application examples presented in this chapter illustrate the efficiency and the accuracy of HOBBIES, which can be used as a versatile tool for analyzing challenging, real-world electromagnetic problems.

At the beginning of this chapter, the computational results of a slotted waveguide array antenna using HOBBIES are compared with the experimental measurements. It is demonstrated that using this electromagnetic software, one can compute the radiation pattern that agrees well with measurements. A realistic 1712-element traveling wave slot antenna array is then analyzed.

The computational results of an antenna with some complex composite structures using HOBBIES are then compared with the experimental measurements. The complex composite structure to be studied consists of an L-band antenna array and a dielectric ...

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