方型天線試算表URL

panda109

signalengineering.com/ultimate/4_element_quad.html


幫你把圖加上, 免得有友台不敢點連結怕中毒..... 有興趣的友台可以連去看試算公式.  Many thanks!  WSUgocouars 加註 @ 2102/6/30 11:35

Element Lengths

This and the next section are going to refer to Figure 1. Figure 1 has labels for each of the beams dimensions we are going to talk about now. Element lengths play a role in the overall performance of the antenna.

Figure 1 - The important dimensions we must calculate for the frequency you choose. The R1,DR1,D1 and D2 dimensions are just for 1 side of their respective element.

panda109

其實用PVC管來做似乎真的不難,OM可否來一場DIY教學呢?
我找了一下附個圖6el的pvc quad yigi好像在接水管哈....