Communications: radio wave antennas – Antennas – Antenna components
Reexamination Certificate
2005-10-04
2005-10-04
Nguyen, Hoang V. (Department: 2821)
Communications: radio wave antennas
Antennas
Antenna components
C343S756000, C343S7000MS
Reexamination Certificate
active
06952190
ABSTRACT:
A low profile, wide band gap antenna having a high impedance surface, the high impedance surface including a conductive plane and an array of conductive elements spaced from the conductive plane by a distance which is no greater than 10% of a wavelength of an operating frequency of the antenna structure. The conductive plane has an opening therein which is driven by an antenna driving element adjacent the opening in the conductive plane.
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Sievenpiper, D., et al., “High-Impedance Elecromagnetic Surfaces with a Forbidden Frequency Band,”IEEE Transactions on Microwave Theory and Techniques, vol. 47, No. 11, pp. 2059-2074 (Nov. 1999).
Ying, Z., et al., “Improvements of Dipole, Helix, Spiral, Microstrip, Patch and Aperature Antennas with Ground Planes By Using Corrugated Soft Surfaces, ”IEEE Proceedings: Microwaves, Antennas, and Propagation, vol. 143, No. 3, pp. 244-248 (Jun. 1996).
Lynch Jonathan J.
Sievenpiper Daniel F.
HRL Laboratories LLC
Ladas & Parry
Nguyen Hoang V.
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