Antenna Subsystem In Satellite Communication

Satellite antennas perform two types of functions.

Antenna subsystem in satellite communication.

May 2013 may 2014 dec 2014. For example moon is a natural satellite of earth. This tracking can be done in one of the. 2 explain briefly the offset feed used with paraboloidal reflector antenna stating its main advantages and disadvantages.

Transponder performs the functions of both transmitter and receiver responder in a satellite. The tracking subsystem keeps track with the satellite and make sure that the beam comes towards it in order to establish the communication. Now let us discuss about the satellite antennas. In other words it is nothing but sending receiving and processing of.

Those are space segment and earth segment. Antennas are present in both satellite and earth station. 1 explain different types of antenna used in satellite communication. The tracking system present in the earth station performs mainly two functions.

It is one of the most important subsystem of space segment subsystems. The subsystem which provides the connecting link between transmitting and receiving antennas of a satellite is known as transponder. Explain with neat diagram the antennas used in satellite communication. A satellite communication consists of mainly two segments.

The objective of this chapter is to provide a comprehensive end to end overview of existing communication subsystems residing on both the satellite bus and payloads. The antenna subsystem are complicated mechanical assemblies that are folded into dense packet for launch and must be deployed in large accurately alight assembly during orbit. We know that communication refers to the exchange sharing of information between two or more entities through any medium or channel. Attitude orbit control system ttc m system power system communication subsystems satellite antennas space qualification equipment reliability 3.

These subsystems include command and mission data handling telemetry and tracking and the antenna payloads for both command telemetry and mission data. Those are satellite acquisition and tracking of satellite. Those are receiving of signals which are coming from earth station and transmitting signals to one or more earth stations based on the requirement. Satellite systems ravikiran s.

Satellite control and monitoring is accomplished through monitors and keyboard interface. Among which the main operations are orbit controlling altitude of satellite monitoring and controlling of other subsystems. In general terms a satellite is a smaller object that revolves around a larger object in space. The function of each subsystem and the relationships to the others will be.

This maybe linear dipole helix horn antenna array and parabolic reflector. Satellite communication introduction.