Dual circular polarization waveguide system

Details Dual circular polarization waveguide system Dual circular polarization waveguide system

2005-01-04

2005-01-04

Nguyen, Hoang V (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

C343S772000, C343S776000

Reexamination Certificate

active

06839037

ABSTRACT:
A dual circular polarization waveguide (24) is described which has a septum (36) which divides the waveguide (24) into two separate compartments (38, 40) each with a probe (30A,30B) passing through the end wall (32) of the waveguide (24) into the compartment (38, 40) to detect respective signals in each of the compartments (38, 40). The septum (36) is proportioned and dimensioned to convert the left and right circularly polarized signals, into substantially linearly polarized signals as the signals pass along the waveguide (24) past the septum (36) so as by the time the signals reach the probes (30A,30B) they are linearly polarized. The probes (30A,30B) which pass through the rear wall (32) of the waveguide (24) are oriented such that they couple into the magnetic field of the primary or fundamental waveguide mode. These probes (31A,30B) do not require to be orthogonal to each other but each probe (31A,30B ) has a free end disposed in proximity to a waveguide wall or the septum (36) within a respective compartment (38, 40) so that the probe (30A,30B) is capacitively coupled to the waveguide wall or septum (36) to allow the probe (30A,30B) to couple into the respective magnetic field in the compartment (38, 40).

REFERENCES:
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patent: 5459441 (1995-10-01), Weber et al.
patent: 6118412 (2000-09-01), Chen
patent: 60 176302 (1985-09-01), None
patent: 06 283913 (1995-02-01), None

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