Patent ID: 8508312
Filing Date: 2013-08-13
Classification: H01P

Abstract:
1. A multiband transmit-receive coupler-separator with very wide band of an orthomode transducer (OMT) coupler type for microwave-frequency telecommunications antennae, comprising: a first port for propagating all of frequencies; a body; and a second port for propagating high-frequency bands, wherein the first port, the body and the second port being coaxial and having a circular cross section, and a plurality of coupling slots for propagating a plurality of low-frequency bands made in the body and each of the plurality of low-frequency bands is associated with a waveguide, wherein the body joining the first and second ports comprises at least one section comprising a coupling segment and a segment for blocking coupled frequencies of the coupling segment, and has a shape of revolution with a profile of which changes according to a multipolynomial law, constantly decreasing from a port with largest cross section to a port with smallest cross section, each coupling segment comprising two or four wide-band coupling slots.