Communications: radio wave antennas – Antennas – Wave guide type
Reexamination Certificate
2008-03-26
2010-02-23
Nguyen, Hoang V (Department: 2821)
Communications: radio wave antennas
Antennas
Wave guide type
C343S7810CA, C343S7810CA
Reexamination Certificate
active
07667660
ABSTRACT:
A scanning antenna with an antenna element having an evanescent coupling portion includes a waveguide assembly including a transmission line, adjacent the coupling portion, through which an electromagnetic signal is transmitted, permitting evanescent coupling of the signal between the transmission line and the antenna element. First and second conductive waveguide plates, on opposite sides of the transmission line, define planes that are substantially parallel to the axis of the transmission line, each plate extending distally from a proximal end adjacent the antenna element, whereby the propagated signal forms a beam that is confined to the space between the plates and thus limited to a plane that is parallel to the planes defined by the plates. The signal coupled between the transmission line and the antenna element is preferably polarized so that its electric field component is in a plane parallel to the planes defined by the plates.
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Aretskin Mark
Avakian Aramais
Felman Mikhail
Litvinov Vladimir I.
Manasson Vladimir
Klein O'Neill & Singh, LLP
Nguyen Hoang V
Sierra Nevada Corporation
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