Speaker
Mr
Jean Parlebas
(TESAT (DE))
Description
As the telecom satellites become larger and larger the number of channels to be accommodated is increasing steadily. This results in output multiplexers (OMUX) with a higher number of channels and a larger footprint often together with operating power levels which are still increasing. Therefore the scope of the activity was to design a compact Ku-Band OMUX with a high number of channels.
Two main concepts were considered in parallel in this activity:
The first concept was based on a single mode TE01δ cavity loaded with dielectric with permittivity of 10 and without any self compensation property. BB filters for 4-2-0 at 12.75GHz and for 5-2-0 at 10.7GHz were built up for design verification. Furthermore first steps were done for mechanical temperature compensation. Unloaded Q of 30000 is possible.
The second solution was based in a dual mode HE11 cavity loaded with dielectric with permittivity of 24 and property of self compensation. Unloaded Q of 9000 is possible.
First concept has large dimensions and a not completely spurious mode free range in Ku-Band but a very good Q value. Second concept is very small but has the disadvantage of the low Q and high operating material temperatures.
By combining the advantages of both concepts an innovative solution was found which will be followed up in a different program. Therefore the actual program has been stopped at this point.
Primary authors
Mr
Christoph Heine
(Karlsruhe Institute of Technology (DE))
Mr
Dennis Epple
(TESAT (DE))
Mr
Jean Parlebas
(TESAT (DE))
Mr
Meinrad Abele
(TESAT (DE))
Mr
Michael Franz
(TESAT (DE))
Mr
Thomas Zwick
(Karlsruhe Institute of Technology (DE))
