Title:
RADIO FREQUENCY ANTENNA FEED STRUCTURES
Document Type and Number:
WIPO Patent Application WO2002060000
Kind Code:
A8
Abstract:
A waveguide feed structure having a coaxial transmission line. A conductive, planar septum is disposed in, and along a diameter of, the transmission line. A feed port is electrically coupled to the transmission line. The septum has a rear portion disposed proximate the feed port, such rear portion of the septum extending between the inner conductor and the outer conductor. The feed port and the rear portion of the septum are arranged to establish an electric field in the transmission line between the inner conductor and the outer conductor with a component substantially TELL< mode along a direction perpendicular to the planar septum. A forward portion of the septum is asymmetrically disposed with respect to said diameter in order to provide a gap between the inner conductor and the outer conductor, such gap establishing an electric field component within the transmission line having a TELL? component along said diameter of the transmission line parallel to the plane of the septum.
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Inventors:
HOLDEN RICHARD H
BELTRAN FERNANDO
HANLIN JOHN J
BELTRAN FERNANDO
HANLIN JOHN J
Application Number:
PCT/US2002/001869
Publication Date:
December 27, 2002
Filing Date:
January 22, 2002
Export Citation:
Assignee:
RAYTHEON CO (US)
International Classes:
H01P1/161; H01P1/17; (IPC1-7): H01P1/161
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