- Heinrich Hertz: In 1886, German physicist Heinrich Hertz conducted experiments that demonstrated the existence of electromagnetic waves, which laid the foundation for wireless communication.
- Nikola Tesla: Serbian-American inventor Nikola Tesla conducted pioneering work in electrical engineering and radio communication. In the late 1890s, he developed a system for wireless transmission of power and demonstrated the transmission of radio waves over short distances.
- Guglielmo Marconi: Italian engineer and inventor Guglielmo Marconi is widely recognized as one of the fathers of radio. In 1895, he successfully transmitted and received radio signals over a distance of several kilometers. Marconi's work led to the development of practical radio communication systems for long-distance communication.
- Karl Ferdinand Braun: German physicist and engineer Karl Ferdinand Braun shared the Nobel Prize in Physics with Marconi in 1909 for their contributions to wireless telegraphy. He developed the crystal detector, a device used for receiving radio signals.
- Oliver Lodge: British physicist Oliver Lodge conducted experiments on wireless communication in the 1890s and made significant contributions to the early development of radio technology.
These individuals played pivotal roles in the early development and advancement of radio communication, but it is important to note that the invention of radio was a cumulative effort involving many other researchers and inventors.