Microwave mode transducer

摘要

The invention relates to a microwave mode transducer for changing between the rectangular TE10 mode and the semi-circular or circular TE01 mode. It comprises a microwave mode transducer comprising a semi-circular wave guide and a rectangular wave guide, the wave guides having substantially parallel longitudinal axes and being separated by a web which forms at least a part of the plane wall of the semi-circular guide and one of the smaller side walls of the rectangular guide, the guides being coupled by orifices in the web which orifices are substantially contiguous and are substantially as wide at their maximum width as the wall of the rectangular guide in which they are made.