This antenna is made up of two conductive rods, each attached to opposite ends of an AC generator.
该天线由导电棒组成,每根导电棒都连接到交流发电机的另一端。
英语百科
Electric generator
In electricity generation, a generator is a device that converts mechanical energy to electrical energy for use in an external circuit. The source of mechanical energy may vary widely from a hand crank to an internal combustion engine. Generators provide nearly all of the power for electric power grids.