A scanned antenna (1000) is a scanned antenna including antenna elements (U) arranged together, the scanned antenna comprising: a TFT substrate including a first dielectric substrate (1), TFTs, gate bus lines, source bus lines, and patch electrodes (15); a slot substrate (201) including a second dielectric substrate (51), and a slot electrode (55) formed on a first primary surface of the second dielectric substrate; a liquid crystal layer (LC) provided between the TFT substrate and the slot substrate; and a reflective conductive plate (65) arranged so as to oppose a second primary surface of the second dielectric substrate (51) with a dielectric layer (54) interposed therebetween, the second primary surface being on an opposite side from the first primary surface. The TFT substrate (TFT substrate portion (101Cb)) includes a terminal region (TR) outside of the seal portion (73), and the gate bus lines or the source bus lines are connected to gate terminal portions or source terminal portions formed in the terminal region via a transparent conductive layer (14b) provided between the seal portion (73) and the TFT substrate.