Dual band antenna for wireless communication

Details Dual band antenna for wireless communication Dual band antenna for wireless communication

2005-01-18

2005-01-18

Phan, Tho (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S702000

Reexamination Certificate

active

06844853

ABSTRACT:
A dual band antenna (1) for a wireless communication device includes an insulative substrate (10), a feeder (40) and a conductive element (20) disposed on the substrate includes a ground portion (30), a first radiating portion (21), a second radiating portion (22), a first connecting portion (23) connecting the first radiating portion with the ground portion on and a second connecting portion (25) connecting the first radiating portion and the second radiating portion. The second radiating portion symmetrically forms a pair of arms (221, 222). The feeder includes an inner core (41) connecting to the second connecting portion and an outer shield (42) connecting to the ground portion.

REFERENCES:
patent: 6204819 (2001-03-01), Hayes et al.
patent: 6204826 (2001-03-01), Rutkowski et al.
patent: 6295029 (2001-09-01), Chen et al.
patent: 6535172 (2003-03-01), Hirabayashi
patent: 6552686 (2003-04-01), Ollikainen et al.
patent: 6606071 (2003-08-01), Cheng et al.
patent: 6734826 (2004-05-01), Dai et al.
patent: 20040178957 (2004-09-01), Chang et al.
Faton Tefiku et al. “Design of Broad-Band and Dual-Band Antennas Comprised of Series-Fed Printed-Strip Dipole Pairs”, IEEE Transaction on Antenna and Propagation, vol. 48, No. 6, Jun. 2000, 895-900.

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