Dipole antenna
AssigneeWistron Neweb Corp.
InventorChih-Lung Chen
Life of this patent
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Abstract
Disposing an additional sleeve-shaped structure, which is also called a sleeve, on a first radiator of both resonant radiators of a dipole antenna so that a cavity is formed between the additional radiator and a second resonant radiator of the dipole antenna. An effective bandwidth of the dipole antenna is increased significantly by a capacitance effect caused by the cavity so that more channels can be received by a general digital television broadband antenna while the dipole antenna is applied on the digital television broadband antenna.
Claims22
A dipole antenna formed on a substrate for transmitting a signal, the dipole antenna comprising:
- a first radiator;
- a second radiator resonating with the first radiator for transmitting the signal;
- and
- a sleeve-shaped structure having an opening and a closed bottom portion connected to the second radiator, wherein the first radiator is inserted in the sleeve-shaped structure through the opening and disconnected from the closed bottom portion of the sleeve-shaped structure.
A dipole antenna formed on a substrate and utilized for transmitting a signal, the dipole radiator comprising:
- a first radiator having a first end and a second end, the second end comprising a first branch and a second branch;
- a second radiator having a first end and a second end, the second end comprising a third branch and a fourth branch;
- and
- a sleeve-shaped structure having a closed portion connected to a first beam and a second beam to form a first opening, wherein a first end of the second radiator is connected to the closed portion of the sleeve-shaped structure, and the first radiator is inserted in the sleeve-shaped structure through the first opening and disconnected from the closed portion of the sleeve-shaped structure.
Dependencies are inferred from the claim text.