Normal mode helical antennas
Where D = diameter and S = spacing between turns
When pi*D = (S*wavelength)^.5 then the polarization is circular.
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Relevant Pages
- Re: circular polarization selective beam splitter
... polarization, and reflect s-polarization. ... You could do this by adapting any of the ordinary crystal polarizer designs, replacing linear birefringence by circular birefringence. ... Firstly, optical activity is generally very weak compared with linear birefringence, which means you could get only very small angular separation between the beams. ...
(sci.optics) - Re: 3-D -- yet another way
... Dual Projector Digital 3D", so I was curious to find out what Dragon ... Dunno how the patents work out in all of this -- I'd've thought circular ... polarization would have been owned by somebody (and that just reversing ...
(rec.arts.movies.current-films) - Re: Rotation of the polarization question
... orientation of feeds, they were RH or LH circular, the uplink was ... We just had a member that works in the satellite uplink/downlink business ... polarization as part of the frequency sharing system in geostationary ...
(rec.radio.amateur.antenna) - Re: Uses of Magic
... That's certainly a "more complicated" basis, since "circular ... polarization" is qualitatively different -- a dynamic effect rather than ... A Weaver and a Cutter, having earth in common, would be able to work ...
(rec.arts.sf.composition) - Re: Drafting a spiral?
... widths for the tracks and spacing. ... Diameter is approx 150mm. ...
(sci.electronics.design) |
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