The invention provides a high-precision log-periodic 
dipole antenna integral forming method. The main structure of a high-precision log-periodic 
dipole antenna comprises an 
assembly line with a pentagonal cross section, and multi-layer 
radiation oscillators which are integrally designed and attached to the 
assembly line and have different lengths and different cross sections. According to productworking requirements, detailed structural design is carried out through theoretical calculation and 
simulation, materials meeting task requirements are selected, complex workpiece 
machining is carriedout by means of various combined 
machining processes such as 
numerical control machining, precision 
wire cutting and 
deep hole machining, a 3D 
laser scanner is adopted to perform effective precisionmonitoring on the complex shape of the high-precision log-periodic 
dipole antenna and screening qualified parts after the machining is completed, and the 
structural consistency between products is ensured to guarantee requirements for 
electrical performance of log-periodic antennas after 
assembly. The high-precision log-periodic 
dipole antenna integral forming method effectively solves the problems of guaranteeing high phase consistency, wide 
frequency band, wide directional diagram, high 
gain and the like between different log-periodic antennas in the L / S / C band, effectively reduces product weight, improves structural strength of products, broadens the application range of measurement and control type log-periodic antennas, and is adapted to different application fields of the products.