Phase Shifters

Phase shifters are electronic devices used to change the phase of an electromagnetic wave without changing its amplitude. In space and astronautical engineering, phase shifters are used in various applications such as phased array antennas, radar systems, and communication systems. They are used to steer the direction of the beam, adjust the polarization, and control the interference pattern. Phase shifters can be implemented using different technologies such as PIN diodes, varactor diodes, and MEMS. The choice of technology depends on the frequency range, power handling, and size requirements of the application.
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