Diplexer for a reflector antenna

US8878629B2 · kind B2 · utility

Assignee

• ASTRIUM GMBH · DE

Inventors

• Ralf Gehring · Straubing, DE
• Christian Hartwanger · Munich, DE
• Un Pyo Hong · Ottobrunn, DE
• Enrico Reiche · Glonn, DE
• Michael Schneider · Dresden, DE
• Ernst Sommer · Wolfratshausen, DE
• Helmut Wolf · Holzkirchen, DE

Key dates

• Filing date: Mar 3, 2011
• Grant date: Nov 4, 2014
• Expiry date: Aug 28, 2032

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01P1/2138
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

A diplexer for a reflector antenna includes a common circular signal waveguide to transmit and receive signals. The signal waveguide includes first and second ends with a common port provided at the first end. A waveguide arrangement is disposed coaxially relative to the signal waveguide in the region of the second end of the signal waveguide. A cylindrical coupler section is disposed between the first and second ends of the signal waveguide, and connects the waveguide arrangement to the common signal waveguide. In order to create a first and second coaxial waveguide port, the waveguide arrangement includes a first circular waveguide, an inner conductor is disposed inside, in which a first signal can propagate when the diplexer is operating, and a second circular waveguide, surrounding the first waveguide, in which a second signal can propagate at a lower frequency than the first signal when the diplexer is operating.