A millimetric radar to study the flight of small insects

摘要: Conventional 3 cm entomological radars have been successfully used for many years to observe the migratory flight of larger insect species, but range at which these can detect individual small insects is limited a few hundred metres. This paper outlines design and application an 8.8 mm wavelength radar study weighing only 2 mg. Detection ranges in excess 1 km were achieved insects, estimates aerial density made by found be within 50% those sampling device.