Modular RF Antenna Filter Layout for MIMO Interference Isolation

The antenna apparatus is divided into multiple independent RF modules, each containing antenna elements. These modules are spatially separated and arranged in a matrix configuration, which reduces mutual interference between elements while maintaining compact overall dimensions. The segmentation allows each module to operate independently, preventing PIMD and radio wave interference even when elements are densely packed.

Isolation structures are introduced as intermediary elements between adjacent antenna modules. These structures act as electromagnetic barriers that prevent coupling and signal leakage between densely packed modules. The isolation structures include ground planes and shielding elements positioned between modules to block electromagnetic fields while maintaining the compact matrix configuration.

The traditional mechanical and thermal coupling methods (plating and soldering) are replaced with direct mechanical attachment methods such as snap-fits, clips, or adhesive bonding. This eliminates the metal-to-metal contact interfaces that cause PIMD, while maintaining electrical connectivity through conductive pathways integrated into the non-metallic coupling structures. The replacement preserves ease of manufacture through modular assembly while eliminating PIMD generation.

Each RF module is designed as a universal, standardized unit that can be replicated and arranged in various configurations to achieve different channel capacities. The modules share identical interfaces, dimensions, and coupling mechanisms, which simplifies the overall system design despite the increased number of components. This universality allows scalable deployment from 2x2 to 4x4 MIMO configurations without increasing per-module complexity.