The invention provides a glass-based AOP phased-array antenna unit and a
radar system, and relates to the technical field of antennae, the glass-based AOP phased-array antenna unit comprises a T / R
assembly module and an antenna module, the T / R
assembly module comprises a first BGA ball array, a first glass-based adapter plate, a glass-based adapter cap, a transceiving multifunctional
chip and a transceiving bidirectional amplification
chip; the antenna module comprises a glass-based adapter plate 2, an antenna
assembly and a BGA ball array 2. The first BGA ball array, the first glass-based adapter plate, the glass-based adapter cap, the second BGA ball array, the second glass-based adapter plate and the antenna assembly are sequentially stacked in a selected direction to form a multi-layer structure. A transceiving multifunctional
chip and a retractable bidirectional amplification chip which are mounted on the glass-based adapter plate I and are connected with each other are arranged in the glass-based adapter cap; the vertical parts of the first glass-based adapter plate, the second glass-based adapter plate and the glass-based adapter cap are respectively provided with a TGV structure used for
signal transmission. The
antenna efficiency can be effectively improved.