POI (point of interface) -- multiple systems combining platform. It features compactness, low intermodulation, high isolation, cost effective. With extensive range of passive components, poi is capable of providing solutions for almost any combination of frequency bands while keeping insertion loss to a minimum.

Technical characteristic:
1. Low combine loss;
2. High isolation among systems;
3. Low intermodulation;
4. High-power handling;
5. High stability.