Communications: radio wave antennas – Antennas – Slot type
Reexamination Certificate
2006-08-08
2006-08-08
Chen, Shih-Chao (Department: 2821)
Communications: radio wave antennas
Antennas
Slot type
C343S770000
Reexamination Certificate
active
07088300
ABSTRACT:
A directional, wideband, planar antenna arrangement is a class of Vivaldi aerial constructed as a plurality of conductive layers disposed on at least one substrate layer. The conductive layers are arranged to form a flared notch, which widens from a closed end to an open end, and is arranged to conform to a hybrid curve. The hybrid curve comprises a plurality of self-similar curve sections, and, as the flare widens, each successive curve section is scaled up by a scaling factor and joined at its wider end with a neighboring curve section. The hybrid flared notch can also be implemented in antipodal and balanced antipodal Vivaldi aerials.
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Chen Shih-Chao
Crowell & Moring LLP
Roke Manor Research Limited
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