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#1
May 24th 09, 06:17 AM
posted to rec.radio.amateur.antenna
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Piano Wire Antenna for Experimental Rocket
On Sat, 23 May 2009 21:45:15 -0700, Jeff Liebermann
wrote: You're reinventing the wheel. Look at photos of the original Explorer I satellite (with Von Braun and others holding it over their heads). There are 4 wires radiating from the tubular rocket casing forming a circularly polarized double dipole "turnstile" antenna. Since it's since one antenna is always visible, there's no blocking by the missile body. Since it's circularly polarized, there's no positional nulls and peaks. http://history.nasa.gov/sputnik/expinfo.html More photos: http://www.redstone.army.mil/history/explorer/EXPLORER.html http://www.redstone.army.mil/history/explorer/Explorer%20One%20Satellite%20Diagram.jpg -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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