How Will Radar Be Integrated Into Daily Life?: mm-Wave Radar Architectures for Modern Daily Life Applications

Although the word
radar
is currently widely used as a standard word in our daily lives, it is, indeed, an acronym for “radio detection and ranging” from the 20th century. As early as 1886, German physicist Heinrich Hertz used experiments to prove that radio waves can be reflected from solid objects. In 1904, German engineer Christian Hülsmeyer used radio waves to detect ships in dense fog. The period on the eve of and during World War II was a key time for the rapid development and formation of radar in the modern sense. Continuous wave (CW) and pulse radar, especially the latter, have been widely used until today. Since then, in addition to military radars, which have always been dominant, other applications, such as meteorological radars for weather monitoring and atmospheric research and remote sensing radars for surface and geological imaging, have also been widely used.