看板 comm_and_RF 關於我們 聯絡資訊
1864 – Maxwell’s Equations: theoretical basis for electromagnetic waves 1888 – Heinrich Hertz produced and detected RF electromagnetic waves 1893 – Nikola Tesla demonstrated the feasibility of wireless communications 1897 – Marconi built first radio station on Isle of Wight 1906 – First radio program broadcast 1908 – First wireless phone patent issued 1920 – First radio news program 1928 – First television broadcast 1945 – “0G” mobile phones introduced – These were not “cellular” 1947 – Cellular basestations invented for military communications 1954 – Pocket transistor radio produced 1963 – TELSTAR (radio communications satellite) launched 1970 – First wireless computer network developed 1973 – Motorola invented first handheld mobile phone 1979 – Introduction of “1G” analog cellular systems 1984 – First US cellular phone approved by FCC 1987 – GPS system launched 1991 – First “2G” system launched (GSM) 1999 – Wireless LAN became commercially available 2001 – First “3G” system launched (WCDMA/FOMA) Today – Continued Roll Out of 3G, Planning for 4G and Beyond -- 我渴望能見你一面,但請你記得,我不會開口要求要見你。 這不是因為驕傲,你知道我在你面前毫無驕傲可言, 而是因為,唯有你也想見我的時候,我們見面才有意義。 -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 203.70.74.147
alfiema:有書或雜誌在介紹RF歷史演進的嗎? 219.87.156.6 05/18 16:08
kimfatt:IEEE有Flash 不過很簡短 163.17.64.252 05/18 16:14
pow:Sonnet的老闆Jim Rautio應該很清楚 74.242.226.167 05/18 20:25
pow:他的偶像是James C. Maxwel 74.242.226.167 05/18 20:26
pow:他還和一大堆microwave的人慶祝Maxwell的冥辰 74.242.226.167 05/18 20:28