Sum-difference beam scanning leaky-wave antenna integrated with 180-degree hybrid network

The invention provides a sum-difference beam scanning leaky-wave antenna integrated with a 180-degree hybrid network. The sum-difference beam scanning leaky-wave antenna comprises a dielectric plate, a first periodic leaky-wave antenna, a second periodic leaky-wave antenna, the 180-degree hybrid network and a metal grounding plate, the dielectric plate is installed on the metal grounding plate, and the first periodic leaky-wave antenna, the second periodic leaky-wave antenna and the 180-degree hybrid network are installed on the dielectric plate. The first periodic leaky-wave antenna is connected with one output port of the 180-degree hybrid network, and the second periodic leaky-wave antenna is connected with the other output port of the 180-degree hybrid network; the number of units in the first periodic leaky-wave antenna is smaller than the number of units in the second periodic leaky-wave antenna. The invention solves the problems of complex structure, high cost and low precision in the prior art, and ha