Study on Input Channel Filter and Output Multiplexer for Satellites Payload

摘要

An output multiplexer (OMUX) using TE_(11n) mode is a mature technology and it has been adapted for many telecommunications/broadcasting satellites. In our project for the next satellite in Korea, we will use TE_(114) mode instead of TE_(113) mode to enhance the insertion loss throughout the passband. To reduce the increased size and weight due to usage of TE_(114) mode, we replace one of the TE_(114) mode cavity with a TE_(011) mode cavity. In this paper we present how to replace the TE_(114) mode cavity with a TE_(011) mode cavity and the results. We reduced the length of each channel filter by 15 % and the total weight by 9.6%.