Multi-band dipole antennas

摘要

Multi-band dipole antennas for wireless application devices are disclosed. An example antenna includes at least one dipole including a resonant element and a ground element. A feed point is coupled to the resonant element, and a ground point is coupled to the ground element. The example antenna also includes a parasitic element adjacent at least a portion of the resonant element. The parasitic element is coupled to the ground element and configured to be operable for changing a resonant frequency of at least a portion of the resonant element.

主权项

1. A multi-band dipole antenna comprising:
at least one dipole including a resonant element and a ground element, the ground element including a nonconductive slot, the resonant element including a first arm resonant in at least a first frequency range and a second arm resonant in at least a second frequency range, the first arm connected to the second arm and including at least a portion which is not part of the second arm, the first arm having a substantially rectangular shape and not including a meander section; a feed point coupled to the resonant element; a ground point coupled to the ground element; and a substantially rectangular parasitic element extending from the ground point and adjacent at least a portion of the resonant element, the parasitic element coupled to the ground element, the parasitic element configured to be operable for changing a resonant frequency of at least a portion of the resonant element.