Communications: radio wave antennas – Antennas – Spiral or helical type
Reexamination Certificate
2006-12-13
2010-12-14
Le, HoangAnh T (Department: 2821)
Communications: radio wave antennas
Antennas
Spiral or helical type
C343S796000, C343S801000
Reexamination Certificate
active
07852282
ABSTRACT:
A module for receiving one or more electromagnetic waves moving along a path in a direction of propagation. The module includes a first electrically conductive strip disposed in a first pattern and a second substantially electrically conductive strip disposed in a second pattern. The first and second strips are positioned substantially parallel to each other and spaced apart, and are electrically connected to each other. The first and second patterns are substantially opposite to each other, so that current passing through the first and second strips generates respective electromagnetic fields which are substantially opposed to each other. The first strip is positionable in the path of the electromagnetic wave and substantially transverse to the direction of propagation, to provide a protected region from which said at least one electromagnetic wave is substantially excluded.
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