Waveguide. l= 1000.0. 
P R r   
100 0
4
0 0 0 0 0 0 0
0 1500 0 0.06 0 1 0
60 1500 0 0.06 0 1 0
100 5000 2000 0.1 0.2 3.0  -1. 1000
1500 4

1
90 0 0 1 0

1200 -1200
1024 1 1024

-1 1 41
10 1