Composite antenna for collecting partial discharge signals of power equipment

The utility model discloses a composite antenna for collecting partial discharge signals of power equipment, which comprises a first substrate and a second substrate, the first substrate and the second substrate are arranged oppositely, and the first substrate and the second substrate are connected through an antenna support to form an I-shaped structure. A cylindrical long hole is formed in the antenna bracket; the ultrahigh-frequency signal antenna is arranged on the upper end face of the first substrate and used for collecting ultrahigh-frequency signals generated during partial discharge of the corresponding power equipment; the transient ground voltage signal antenna is arranged on the lower end surface of the second substrate and is used for acquiring a transient ground voltage signal generated during partial discharge of the corresponding power equipment; the ultrahigh-frequency signal antenna and the transient ground voltage signal antenna are connected through a coaxial cable; the coaxial cable is ar