Coupler - separator transmission - reception multi-band a wide band of the type of telecommunications antennas omt for microwave.

摘要

The present invention relates to a coupler - separator of the transmission - reception multi-band at a very wide band of the type "omt (orthomode transducer ", that is - to - say coupler orthomode) for telecommunications antennas microwave. This coupler comprises a port (p1) of propagation of the totality of the frequencies, a body and a port (p2) of propagation of the strips of high frequencies, these three parts are coaxial, and the coupling slots wide band (24a) of propagation of the bands of frequencies in the body and each associated with a waveguide, and it is characterized in that its body (24) joining the two ports has a shape of revolution, the profile of which varies according to a law multi - polynomial, which is constantly decreasing from the use of larger cross section (p1) to the port of smaller cross-section (p2). This coupler can operate in order to couple and separate very wide passbands (the use of this coupler - separator being greater than one octave), two or four coupling slots wide band are necessary for the propagation of linear polarizations as well as circular after recombination.