Q-waveband ridge transition ortho-mode transducer
An orthogonal mode coupler and band technology, which is applied in the field of broadband microwave receivers, can solve problems such as being unfavorable to reduce the noise temperature of an antenna-feeder system, unable to achieve mass production, and large insertion loss.
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[0028] A Q-band ridge transition quadrature mode coupler according to the present invention, the quadrature mode coupler is a broadband double ridge transition-branch synthesis type quadrature mode coupler, the working frequency band is 30-50 GHz, and it is applied to radio telescope Q A band receiver system, the orthogonal mode coupler consists of a double ridge transition-branch joint, a Y-shaped joint, a first E-shaped elbow, a second E-shaped elbow, a first side wall branch port, and a second side wall branch port , double ridge, double ridge transition section, matching nail, inductance diaphragm, first 90-degree elbow, second 90-degree elbow and impedance transformation section, double ridge transition-branch port 5 on the first side wall of branch joint 1 One end of the first E-bend 3 is connected, the other end of the first E-bend 3 is connected with the first 90-degree elbow 7 of the Y-joint 2; the second side wall branch of the double ridge transition-branch joint 1 ...
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