Edit Proposal: Milestone-Proposal:First Millimeter-wave Communication Experiments by J.C. Bose, 1894-96 You do not have permission to edit this page, for the following reason: You are not currently logged in. The action you have requested is limited to users in the group: Users. Please log in or create an account. Docket ID: (admins only) Thank you for proposing a technical achievement for possible recognition as an IEEE Milestone in Electrical Engineering and Computing. Your efforts help preserve the heritage of technology. Detailed information on the Milestone application process may be found at: Milestone Guidelines and How to Propose a Milestone. At least one of the proposer(s) must be an IEEE Member (including Student Member) in good standing. To the proposer’s knowledge, is this achievement subject to litigation? If the answer is "yes", the proposal cannot proceed further. None Yes No You must be able to answer "yes" to all of the following questions. 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In the space below, please describe in detail: the historic significance of the achievement, its importance to the evolution of electrical and computer engineering and science, its importance to regional/national/international development, its benefits to humanity, the ways the achievement was a significant advance rather than an incremental improvement of existing technology. The material submitted here will constitute the main descriptive article on the ETHW website for readers to learn about the milestone. Space is unlimited, and detail is encouraged. Most milestones require 1000 to 1500 words of support, however there is no word limit. The article should be readable by a wide audience that includes practicing engineers, scholars of history, and the general public. Some examples of the text of good milestone articles are First Radio Astronomical Observations Using Very Long Baseline Interferometry] and G3_Facsimile International Standardization of G3 Facsimile (Do not worry about the formatting of the page, IEEE History Center Staff will do that afterwards.) What is the historical significance of the work (its technological, scientific, or social importance)? In 1895, Jagadis Chunder Bose first demonstrated here in Calcutta (now Kolkata), India, transmission and reception of electromagnetic waves at 60 GHz over a distance of 23 meters through two intervening walls by remotely ringing a bell and detonating some gunpowder. For his communication system, Bose pioneered development of a host of millimeter-wave components that included: spark transmitter, coherer, dielectric lens, polarizer, horn antenna and cylindrical diffraction grating. What obstacles (technical, political, geographic) needed to be overcome? The reason for the choice of millimeter wave by Sir J.C. Bose was primarily due to the advantage of studies of quasioptical properties of the radio waves within his laboratory of limited size, that was available to him at the Presidency College. However, the components and systems developed by Sir J.C. Bose, initially at millimeter wave and subsequently at microwave, were outstanding discoveries made more than 100 years ago, in Calcutta, India, most of which are now being utilised, in a modernised form for Earth/space links and remote sensing What features set this work apart from similar achievements? For his communication system, Bose pioneered development of a host of millimeter-wave components that included: spark transmitter, coherer, dielectric lens, polarizer, horn antenna and cylindrical diffraction grating.Bose chose quasi optical Millimeter wave frequency range.The wavelengths he used ranged from 2.5 cm to 5 mm. Ref:1. TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 45, NO. 12, DECEMBER 1997 2267 The Work of Jagadis Chandra Bose: 100 Years of Millimeter-Wave Research - Darrel T. Emerson 2. PROCEEDINGS OF THE IEEE, VOL. 86, NO. 1, JANUARY 1998 p.235 Centennial of the Semiconductor Diode Detector DIPAK L. SENGUPTA, TAPAN K. SARKAR 3. PROCEEDINGS OF THE IEEE, VOL. 86, NO. 1, JANUARY 1998 p.229 Detector for Electrical Disturbances Patent JAGADIS CHUNDER BOSE 4. PROCEEDINGS OF THE IEEE, VOL. 86, NO. 1, JANUARY 1998 p.225 On the Selective Conductivity Exhibited by Certain Polarising Substances JAGADIS CHUNDER BOSE 5. PROCEEDINGS OF THE IEEE, VOL. 86, NO. 1, JANUARY 1998 p.244 On a Self-Recovering Coherer and the Study of the Cohering Action of Different Metals JAGADIS CHUNDER BOSE 6. MTT Microwave Symposium 1998 Dedicated to Sir J C bose and 100 years of millimeter wave Supporting texts and citations to establish the dates, location, and importance of the achievement. 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Please email a jpeg or PDF a letter in English, or with English translation, from the site owner(s) giving permission to place IEEE milestone plaque on the property, and a letter (or forwarded email) from the appropriate Section Chair supporting the Milestone application to email@example.com with the subject line "Attention: Milestone Administrator." Note that there are multiple texts of the letter depending on whether an IEEE organizational unit other than the section will be paying for the plaque(s). Submit this proposal to the IEEE History Committee for review. Only check this when the proposal is finished Summary: This is a minor edit Watch this page Cancel Retrieved from "http://ieeemilestones.ethw.org/Milestone-Proposal:First_Millimeter-wave_Communication_Experiments_by_J.C._Bose,_1894-96"