project:hgg:antenna_design:omidirectional
Unterschiede
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project:hgg:antenna_design:omidirectional [2012-01-01 04:05] – 85.179.243.149 | project:hgg:antenna_design:omidirectional [2012-03-26 09:15] – DTAknfLYYyTEgkdQIt 210.170.35.21 | ||
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- | ====== Omnidirectional Antenna ====== | + | Hmmm I wonder! |
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- | I' | + | |
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- | ====== Groundplane Antenna ====== | + | |
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- | We had already tried this type of Antenna but made an error in the calculations. Since data we gathered is thus worthless, we should redo all things about this antenna type. | + | |
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- | The antenna should be a <m>lambda / 4</m> antenna and thus Wavelength is ~ 275.04 mm, a quarter wavelength is ~ 68,76 mm. | + | |
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- | Thus the antenna should look like this: | + | |
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- | {{: | + | |
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- | The lenght of the antenna should be lambda/4, the lenght of the ground-wires should also be. | + | |
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- | German wikipedia (article [[http:// | + | |
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- | TODO: test the antenna. | + | |
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- | ====== More Gain ====== | + | |
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- | I found out that comercial antennas with high gain often are very long like in 1.2 to 3.5 Meters. In the antenna Manuals (eg see [[http:// | + | |
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- | It's not clear if that also works for groundplane antennas. | + | |
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- | Need plan to build that. | + | |
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- | ===== Link-Dump ===== | + | |
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- | [[http:// | + | |
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project/hgg/antenna_design/omidirectional.txt · Zuletzt geändert: 2012-03-26 09:16 von 85.214.34.41