Babinet’s Principle
Babinet’s Principle Babinet’s principle states that the sum of the field at a point behind a plane having a screen and the field at the same point when a complementary screen…
Control System | Closed Loop Open Loop Control System
Control System Control systems play a vital role in our day-to-day life. The notion of an automatic control system is basic and well mixed in every facet of our life.…
Attitude and Orbit Control System (AOCS)
Attitude and Orbit Control System (AOCS) Attitude and orbit control system is used to control the orbit of the satellite, besides helping to maintain stabilization and its position. The control…
Continuous Wave (CW) Radar
Continuous Wave (CW) Radar A continuous-wave (CW) radar system operating with a constant frequency can measure velocity, but not the range. A signal transmitted from an antenna which is having…
Compensator in Control System
Compensator The compensator circuits basically introduce a pole and/or zero to the existing system to meet the desired specifications. The compensators may be designed using electrical, mechanical, pneumatic or any…
Telemetry Tracking and Command Subsystem
Telemetry, Tracking and Command (TT&C) Subsystem The tracking, telemetry, and command (TT&C) subsystem monitor and controls the satellite right from the lift-off stage to the end of its operational life…
555 Timer and Its Applications
555 Timer and Its Applications The 555 timer is a linear IC, which works as a monostable multivibrator, an astable multivibrator, a Schmitt trigger, a function generator with output waveforms (such as…
Very Small Aperture Terminal (VSAT)
Very Small Aperture Terminal (VSAT) VSAT stands for Very Small Aperture Terminal. In satellite communication, the development and technology have allowed, data and voice communication cost-effective for a broader range…
Transistor-Transistor Logic (TTL)
Transistor-Transistor Logic (TTL) TTL as outlined above stands for Transistor-Transistor Logic. It is a logic family implemented with bipolar process technology that combines or integrates NPN transistors, PN junction diodes,…
Waveguide and its types
Waveguide A waveguide is just a hollow metallic tube that may be rectangular or circular in shape and is used to guide the microwaves. Waveguides are constructed of brass, copper,…