Patent ID: 6853335

Claim:
A miniature monopole antenna for dual-frequency printed circuit board, comprising: a dielectric printed wire board; a printed wire, being printed on one side of said dielectric printed wire board and one of its ends serving as a signal feed terminal; a metal grounding surface, being printed on another side of said dielectric printed wire board at a position corresponding to said printed wire; two radiators, of which one being extended from one end of said printed wire at a position other than the corresponding metal grounding surface, and being bent into approximately 90 degrees after being extended to a predetermined length in the direction away from the metal grounding surface to form a radiator of the predetermined length, and then extended along the direction parallel to said radiator and bent into approximately 90 degrees and being extended to another predetermined length along the direction parallel to said radiator and bent to approximately 90 degrees and then being extended to a corresponding position on another end of said printed wire to define another radiator.