The first successful slotted waveguide array antennas were developed in Canada during the Second World War. The immediate applications were in military ground and airborne radar systems for target detection and tracking. Later applications include remote sensing from aircraft and space vehicles and microwave communication links. Spaceborne synthetic aperture radar (SAR) with slotted waveguide arrays are used for weather forecasting, environmental monitoring, climate change studies, etc. The slotted array antenna is also considered in automobile collision avoidance systems. For the interested reader not too familiar with slotted waveguide array antennas a few simple concepts are introduced in the following text.

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Inspec keywords: slot antenna arrays

Other keywords: automobile collision avoidance systems; airborne radar systems; microwave communication links; target tracking; climate change studies; space vehicles; remote sensing; slotted waveguide array antennas; weather forecasting; SAR; aircraft; environmental monitoring; military ground; spaceborne synthetic aperture radar; target detection

Subjects: Antenna arrays