Planar monopole antennas

Details Planar monopole antennas Planar monopole antennas

2007-03-20

2007-03-20

Nguyen, Hoang V. (Department: 2821)

Communications: radio wave antennas

Antennas

Microstrip

C343S833000, C343S834000, C343S846000

Reexamination Certificate

active

11223391

ABSTRACT:
Planar monopole antennas. A planar monopole antenna for communicating radio signals within a specific frequency range includes a substrate, a ground, a first sleeve, a second sleeve and a radiator. The radiator and the ground are formed on the substrate. The first and second sleeves project from a side of the ground in a first direction, wherein the first sleeve has a first length, and the second sleeve has a second length in the first direction. The side of the ground defines a third length. The radiator has a fourth length in the first direction, substantially equal to the sum of the first, second, and third lengths.

REFERENCES:
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patent: WO 2004/102742 (2004-11-01), None
Pey-Ling Teng et al, “Multi-Frequency Planar Monopole Antenna for GSM/DCS/PCS/WLAN Operation,”Microwave and Optical Technology Letters, vol. 36, No. 5, 2003, pp. 350-352, Wiley Periodicals, Inc., USA.
M. Rahman et al, “Dual-Band Strip-Sleeve Monopole for Handheld Telephones,”Microwave and Optical Technology Letters, vol. 21, No. 2, 1999, pp. 79-82, John Wiley & Sons, Inc., USA.
Maria A. Stuchly et al, “Modeling Antenna Close to the Human Body,”IEEE, vol. 5, 2000, pp. 83-89, USA.

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