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radar: Quick Facts

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Photos and Videos

Diagram illustrating radar operation, showing a radar antenna sending out a pulse that passes a target airplane; part of the energy is reflected back as an echo pulse toward the antenna.
pulse waveform transmitted by radar
parts of a radar system
radar antennas
ASR-9 airport surveillance radar
AN/APG-66 radar in an F-16 fighter aircraft
refraction of HF radar radiation by the ionosphere
hook echo
Waveguide
Air traffic controllers aboard the USS Essex monitoring radar screens, 2003.
Learn how a radar works
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Topics
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Key People

Luis Alvarez
Luis Alvarez
American physicist
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William Webster Hansen
American physicist
Watson-Watt, Sir Robert
Sir Robert Alexander Watson-Watt
British physicist
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Frederick Emmons Terman
American engineer
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Albert Hoyt Taylor
American physicist and radio engineer
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Sir Arthur Percy Morris Fleming
British engineer
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Sir Frederic Williams
British engineer
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Robert H. Dicke
American physicist
Page, Robert Morris
Robert Morris Page
American physicist
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Robert Hanbury Brown
British astronomer
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James Brown Fisk
American physicist

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