PHASED ARRAY ANTENNA

A phased array antenna (20) includes a front plate (1), a plurality of blocks (6) including a plurality of slices (8) that include a plurality of transmitters (12) and a circuit board (13) that distributes a power supply, a control signal, and a high-frequency signal to the plurality of slices (8), the blocks being held on a first face of the front plate (1), a plurality of power sources that supply power to the blocks (6), which is held on the first face of the front plate (1), an antenna element layer in which a plurality of antenna elements are arrayed, which is held on a second face of the front plate (1), and a high-frequency signal wiring layer including high-frequency signal wiring through which a high-frequency signal to the antenna elements passes, which is held on the second face of the front plate (1), in which the transmitters (12) include a coaxial connector (14) electrically connected to the high-frequency signal wiring via a through hole (1a) formed in the front plate (1).