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Q:What is a phased array antenna?
A phased array antenna is an advanced antenna system that uses multiple radiating elements with electronically controlled phase shifts to steer the beam direction without mechanical movement.
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Q:What is the difference between phased array antennas and traditional antennas?
Traditional antennas rely on mechanical steering
Phased arrays utilize electronic beam steering technology, enabling faster response, multi-beam operation, and no mechanical component rotation
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Q:What are the main components of a phased array antenna?
Antenna unit
TR chip or component
Amplifier and LNA
Beamforming controller
Power supply and cooling system
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Q:What is beamforming, and how does it work?
Beamforming is the process of combining signals from multiple antenna elements to create a focused beam in the desired direction by adjusting the phase and amplitude
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Q:What are the key performance indicators of phased arrays?
Operating frequency
EIRP and G/T
Beam scanning angle
Volume and weight
Power consumption
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Q:What is the difference between analog beamforming and digital beamforming?
Analog beamforming employs phase shifters and combiners in the RF domain.
Digital beamforming processes signals digitally at each element, offering greater flexibility but also higher complexity.