Notice that I 0 because we have symmetrical excitation. Hence, the Wilkinson power divider shown in the first figure above, and with matched terminations, can be drawn asĮven-Odd Mode Analysis of the Wilkinson Power Divider In the even-odd mode analysis for the S parameters, we will first excite this network symmetrically at the two output ports, followed by an anti-symmetrical excitation. For example, a TL with characteristic impedance 2Z 0 will be delineated as 2 To simplify matters, as in the text, we will: 1. We will now show that for a 1:1 Wilkinson power divider, Z 0,Q 2Z 0 and R 2 Z 0. This mathematical process is called an “even-odd mode analysis.” It is a technique used in many branches of science such as quantum mechanics, antenna analysis, etc. Specifically, we will excite this circuit in two very special configurations (symmetrically and anti-symmetrically), then add these two solutions for the total solution. There is much symmetry in this circuit that we can exploit to make the S parameter calculations easier. This is a popular power divider because it is easy to construct and has some extremely useful properties: 1. The next three port network we will consider is the Wilkinson power divider, in particular the 1:1 power divider (Fig 7.8b): /4 Z0
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |