Connector for prepaid SIM-based Wi-Fi router
Connector for prepaid SIM-based Wi-Fi router
These test points have a spring contact so that when the probe tip is pushed on it breaks the continuity to the antenna. But yeah, there still isn't a mating connector since they aren't meant for permanent connections.
You'd need to link antennas matching the desired frequency response, align them properly, and set their spacing for optimal MIMO performance. Even then, excessive gain might overload RF amplifiers. Additionally, creating custom antennas outside their intended use could violate regulations, risking significant penalties. Devices built for external antennas can automatically adjust gain, but compliance remains crucial.