00000nam 2200000zi 4500 9.894431 CaOODSP 20221107173732 m o d f cr bn||||||||| 201207t19851987onca ob f000 0 eng d 0662152158 (print) CaOODSP eng rda CaOODSP Co24-3/7-1393-1985E-PDF Co24-3/2-1393E Jull, G. W. (George Walter), 1929- author. Summary report on SHARP (Stationary High Altitude Relay Platform). Part A, Technical feasibility of microwave-powered airplanes / by G.W. Jull. Ottawa : Communications Research Centre, 1985. ©1987 1 online resource (19 pages) : illustrations. text txt rdacontent computer c rdamedia online resource cr rdacarrier CRC report ; no. 1393 Issued also in French under title: Rapport sommaire sur le SHARP (Plate-forme relais fixe de haute altitude). Partie A, Faisabilité technique des avions alimentés par micro-ondes. "Radar and Communications Technology Branch." "Ottawa, September 1985." Digitized edition from print [produced by Innovation, Science and Economic Development Canada]. Some pages rotated in this copy. Includes bibliographical references (page 19). "The SHARP (Stationary High Altitude Relay Platform) system concept envisages use of high altitude microwave-powered airplanes as platforms to relay telecommunications signals. The concept takes advantage of microwave power transmission developments associated with the Solar Power Satellite and High Altitude Powered Platform concepts and adapts these to Canadian needs. Microwave power would be transmitted from a large ground antenna system to an unmanned airplane circling at about 21 km. This power would be converted to dc power using rectennas on lower surfaces of the airplane. The dc power would drive lightweight electric motors. Over the period 1981 to 1984, the Radar and Communications Technology Branch of DOC carried out a series of background research activities on technologies associated with SHARP. … This report summarizes principal results and conclusions of the research and assessment studies as related to microwave powering of high altitude unmanned airplanes. Other studies defined telecommunications missions and assessed their commercial viability"--Abstract, page 1. Issued also in print format. Radio relay systems. Drone aircraft. Microwaves. Communications Research Centre (Canada), issuing body. Rapport sommaire sur le SHARP (Plate-forme relais fixe de haute altitude). (CaOODSP)9.894432 CRC report ; no. 1393. (CaOODSP)9.882492 PDF 888 KB https://publications.gc.ca/collections/collection_2020/isde-ised/Co24/Co24-3-7-1393-1985-eng.pdf