Multi-band printed dipole antenna

Details Multi-band printed dipole antenna Multi-band printed dipole antenna

2007-08-02

2008-10-07

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

C343S810000

Reexamination Certificate

active

07432873

ABSTRACT:
The invention relates to a printed antenna comprising a dielectric substrate (CS1, CS2) supporting feeder lines (LA1, LA2) and first and second T-shaped dipoles (D1, D2) of different sizes for dual-band operation. Each dipole includes a stem (J1, J2) and two radiating arms (B1, B2) separated by a coupling slot (FC1, FC2) made in the stem. For compactness of the antenna, the stems are partly superimposed, the coupling slots are aligned and a decoupling cut-out (ED) is made in the second dipole so as to uncover the coupling slot of the first dipole, by virtue of their superposition. The substrate can comprise one, two or three layers. Plural antennas can constitute an antenna network used as a base element in one-dimensional or two-dimensional network.

REFERENCES:
patent: 6094176 (2000-07-01), Van Hoozen
patent: 6281849 (2001-08-01), Brachat
patent: 6310584 (2001-10-01), Reece et al.
patent: 6529172 (2003-03-01), Zimmerman
patent: 6621464 (2003-09-01), Fang
patent: 7095382 (2006-08-01), Surducan et al.
patent: 2713020 (1996-02-01), None
patent: WO 2004/019445 (2004-03-01), None
“T-Dipole Arrays for Mobile Applications” by Christian Sabatier, IEEE Antennas and Propagation Magazine, vol. 45, No. 6, Dec. 2003, pp. 9-24.

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