Passive Intermodulation (PIM) is a type of interference that occurs in wireless communication systems when non-linearities in passive components, such as connectors, cables, or antennas, create unwanted signals. These intermodulation signals can degrade the quality of the primary signal, reducing the overall performance and efficiency of the network. PIM is a critical issue in modern cellular networks, including 4G and 5G, as it can affect signal clarity and coverage. Identifying and minimizing PIM is essential for maintaining optimal network performance and ensuring a high-quality user experience.