A review of studies on modal reservation

A growing number and increasing complexity of radioelectronic devices leads to the need to protect them from interference and enhance their reliability. There are many methods to ensure this, and they differ in capability, efficiency, and ease of implementation. Among these methods, a modal reservation (MR) is one of the most effective, reliable, and uncomplicated methods currently in use. Using this method in PCB tracing and assembling ensures both electromagnetic compatibility and reliability of the final electronic device. Much research has been performed on the study and development of MR, including 18 patents for inventions. However, there is still no a complete and extensive review of this method in order to perform research based on it. Therefore, this article presents a review of history and recent research on MR to identify the possibility of making various prototypes of MR-based structures. These structures could be used for experimental studies to estimate the level of radiated emissions in the frequency range, including the situations when the temperatures are extreme. In the conclusion, the main advantages of MR are summarized for the first time. Keywords: redundancy, modal reservation, modal filtering, electromagnetic compatibility, electromagnetic interference, radiated emissions, transmission lines, printed circuit board.