Demystifying over-the-air (OTA) testing – important antenna parameters, test system setup and calibration

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Heinrich Hertz built the first antenna in 1887, and 10 years later, Marconi began experimenting with wireless communications. By the beginning of the 20th century, Marconi successfully transmitted the first transatlantic radio message. 

Finally, the first broadcast tower went live in the 1920s, nearly 100 years ago [1]. Huge developments followed in the field of wireless communications, antenna design and testing, and EMC testing. With such a long history behind wireless communications and antenna and EMC testing, why is over-the-air (OTA) testing the focus of this paper?

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