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Old Feb 23, 2011, 12:35 AM
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United States, CA, Ukiah
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circular polarized patch design

Thought I saw a tutorial for building a circular polarized patch antenna, but can't find it now! Was I dreaming?

Devin
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Old Feb 24, 2011, 10:02 AM
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I havent seen one on here, patch antennas are sorta hard to get to be truly circular from what I understand. You may look up some HAM websites and find the info, or build one of IBCrazy's other CP antenna designs.
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Old Feb 24, 2011, 07:25 PM
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I have one in the making. After failing countless number of times to do a dual fed patch (to improve axial ratio), I gave up and looked at a few corner trimmed designs. it's not quite as good, but it is the same as what most commercial units are doing.

@Derek - Check the .pdf file I sent you. There is a dual band CP patch design in there in the dish feed section

-Alex
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