Multiplexing device for grouping two frequency bands

Details Multiplexing device for grouping two frequency bands Multiplexing device for grouping two frequency bands

H - Electricity

04

J

333/16, 351/57,

H04J 1/02 (2006.01) H01P 1/161 (2006.01) H01P 1/213 (2006.01)

Patent

CA 1203645

12 ABSTRACT OF THE DISCLOSURE The multiplexing device is intended for a multiband antenna. It essentially comprises in series from the coupling input to the antenna: a common guide permitting the passage of a high frequency band and a low frequency band, into which issue by means of two coupling holes staggered with respect to one another along the common guide, two orthogonal guides which constitute the inputs for the two orthogonal polarizations of the lower band; a junction; and a polarization duplexer for the higher band. The coupling holes contain resonators forming a short-circuit for the higher hand frequencies. The common guide contains, viewed from the antenna coupling input, between the first and second coupling holes, a first filter which reflects towards the first coupling holes the waves in the lower band and having the polarization of the wave passing through the first hole and, between the second coupling hole and the junction, a second filter which reflects towards the second coupling hole the waves located in the lower band and having the polar- ization of the wave to pass through the second hole.

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