A circuit structure for multiple antenna radio units (RUs), base stations (BSs), and satellite communications is provided. Different from the current main technology using the circuit structure of a single printed circuit board (PCB), the circuit structure in this present disclosure consists of multiple PCBs (400), (800), and the required modules of the active antenna such as the antennas (411), (811) and RF components (412), (421), (812), (821); the digital circuit such as the fronthaul interface module (424), digital processing module of communications (422), beamforming module (423), (822), and baseband digital circuit module (823); and the power module (431), (831) in the RU, BS, and satellite communications are allocated into the multiple PCBs (400), (800). By elaborately allocating those modules into the multiple PCBs (400), (800), they can coordinate for achieving the required functionality, and the overall performance can be optimized. The circuit structure can also be used in Massive MIMO (Multiple-Input Multiple-Output) BSs such that the corresponding transmit power can be reduced as a green technology.