Planar circularly polarized antennas

Details Planar circularly polarized antennas Planar circularly polarized antennas

2011-05-31

2011-05-31

Le, HoangAnh T (Department: 2821)

Communications: radio wave antennas

Antennas

High frequency type loops

C343S867000

Reexamination Certificate

active

07952531

ABSTRACT:
A planar circularly polarized antenna comprises at least one coplanar waveguide feed line and a plurality of driven loops electrically connected to the feed line, wherein the driven loops and the feed line are substantially coplanar. At least one of the plurality of driven loops may be of a size different from at least another one of the plurality of driven loops and at least one of the plurality of driven loops may have a resonant frequency different from at least another one of the plurality of driven loops.

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R. Li et al., “Investigation of Circularly Polarized Loop Antennas with a Parasitic Element for Bandwidth Enhancement,” IEEE Trans. Antennas Propagation, Dec. 2005, pp. 3930-3939, vol. 53, No. 12.
J. Grzyb et al., “Wideband Cavity-Backed Folded Dipole Superstrate Antenna for 60 GHz Applications,” Proc. of the 2006 IEEE AP-S International Symp., 2006, pp. 3939-3942.
U.R. Pfeiffer et al., “A Chip-Scale Packaging Technology for 60-GHz Wireless Chipsets,” IEEE Transactions on Microwave Theory and Techniques, Aug. 2006, pp. 3387-3397, vol. 54, No. 8.

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