Design of Semi Non-Active RF Switch for Increasing the Satellite Telecommand Subsystem Reliability

In this paper, a simple new non-active RF switch is introduced to increase the reliability of the telecommand subsystem in a satellite. The telecommand subsystem manages the satellite mission by receiving the sent management commands and data from the ground station. These commands are received by the telecommand receiver and delivered to the onboard telecommand processor. The on board telecommand processor interprets and implements these commands, properly. The telecommand subsystem is designed and fabricated. Then the reliability analysis of this subsystem is studied by redundancy and improved by using the introduced non-active RF switch. The series switch reliability is very important due to using it as a series element. Therefore, a non-active switch with high reliability is designed and implemented. Low weight, low cost and simplicity are the main features of the proposed switch.