Jagadish Chandra Bose's demonstration of microwave communication at the Royal Institution in London in 1897 was a groundbreaking event in the history of wireless communication. Bose's experiments with electromagnetic waves laid the foundation for modern microwave technology and wireless communication systems. During his presentation, Bose used semiconductor diodes to generate and detect microwave signals. He used waveguides, horn antennas, dielectric lenses, various polarizers, and even semiconductors at frequencies as high as 60 GHz; much of his original equipment is still in existence, now at the Bose Institute in Calcutta. He demonstrated that these signals could be transmitted over short distances without the need for wires, showcasing the potential for wireless communication.

Bose's work was ahead of its time and contributed significantly to the development of wireless telegraphy and later radio communication. His experiments not only demonstrated the feasibility of microwave communication but also helped pave the way for the inventions of later scientists, including Guglielmo Marconi and Nikola Tesla, who further advanced wireless communication technology. Bose's contributions to science and technology are immense, and his experiments at the Royal Institution marked a significant milestone in the history of telecommunications.