Zl / Windication |
W / mm |
S/ mm |
D / mm(=d=GW) |
ZL_stat/W |
eeff_stat |
50 1 |
100 |
75 |
200 |
49.8 |
6.66 |
50 2 |
75 |
56 |
200 |
49.3 |
6.64 |
50 3 |
50 |
37 |
200 |
49.3 |
6.56 |
50 4 |
25 |
19 |
200 |
49.5 |
6.35 |
40 5 |
100 |
35 |
200 |
39.7 |
6.6 |
60 6 |
40 |
57 |
200 |
59.5 |
6.59 |
70 7 |
40 |
103 |
200 |
70.1 |
6.62 |
50 |
10 |
10 |
100 |
49.3 |
5.81 |
Table 7-1. Geometries of used coplanar waveguides with static values of line impedances and effective permittivities
The main CPW line configurations, which were used in the test circuits, are listed in table 7.1. In the evaluation catalogue the lines are indicated with superscript numbering (e.g. 50
W1).
![](images/verif001.gif)
Figure 7-1. Line impedance Z
L as a function of the spacing to ground and the line width of coplanar waveguides on GaAs-substrate (450
mm thickness)