A high-gain dual-band antenna includes a resonator holder holding a resonator, which is formed of a metal sleeve, a metal barrel axially spaced from the metal sleeve at a distance, and a metal wire conductor connected to and spaced from the inside wall of the metal barrel, a inductor shell capped on the resonator holder to protect the resonator, and a signal line inserted through the resonator holder with a tubular braided conducting layer connected to the metal sleeve and a center conductor soldered to the metal barrel.
展开▼
