Dipole antenna

Details Dipole antenna Dipole antenna

2007-07-24

2007-07-24

Chen, Shih-Chao (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S795000, C343S7000MS

Reexamination Certificate

active

11306903

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.

REFERENCES:
patent: 5387919 (1995-02-01), Lam et al.
patent: 5754145 (1998-05-01), Evans
patent: 6222494 (2001-04-01), Erkocevic
patent: 6337666 (2002-01-01), Bishop
patent: 6906678 (2005-06-01), Chen
patent: 2005/0035919 (2005-02-01), Yang et al.
patent: 2 144 247 (2000-02-01), None
patent: WO 97/08774 (1997-03-01), None
Tai-Lee Chen, “Multi-band printed sleeve dipole antenna” Electronics Letters, vol. 39 No. 1, 9th Jan. 2003, pp 14-15, X006019583.

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