Dipole antenna other monopole) antennas on the basis of dipole antennas of which they are one half. German physicist Heinrich Hertz first demonstrated the existence of radio waves in 1887 using what we now know as a dipole antenna (with capacitative end-loading). On the other hand, Guglielmo Marconi empirically found that he could just ground the transmitter (or one side of a transmission line, if used) dispensing with one half of the antenna, thus realizing the "vertical" or monopole antenna. For the low frequencies Marconi employed to achieve long-distance communications, this form was more practical; when radio moved to higher frequencies (especially
Marconi Prize communications technology for the benefit of mankind. Past winners of the Marconi Prize include Lawrence E. Page and Sergey Brin for the development of web search company Google, Tim Berners-Lee for his leadership and innovations in the World Wide Web, Noble Laureate Charles K. Kao for developing fiber-optic communications, and Martin Hellman and Whitfield Diffie for their work in security - the Diffie–Hellman key exchange. The first award was given in 1975. 1975 - 1996 1997–present Marconi Prize The Marconi Prize is an annual award recognizing achievements and advancements made in field of communications (radio, mobile, wireless, telecommunications, data communications,