SimRF-->Circuit Envelope-->Directional Coupler Model - INCORRECT IMPLEMENTATION
2 次查看(过去 30 天)
显示 更早的评论
I am experimenting the "Ideal Couplers - Directional coupler" under the SimRF->Circuit Envelope->Junctions toolbox. The parameters I play with are the Insertion loss and Coupling. I fixed the Coupling to 25dB and the insertion loss cannot go below 0.51dB else an error message pops up saying " Expected passive test for Directional coupler to be nonzero.". That doesn't make sense. (10^(-coupling/20))^2 + (10^(-insertion loss/20))^2 = 1. With 25dB coupling, the insertion loss can go to 0.014dB. I suspect the implementation is wrong. Anyone has any idea?
Thanks, cfy30
0 个评论
回答(2 个)
Andreas Loeffler
2016-11-3
I can confirm that issue. I am using 2016a. I guess one has to construct its own directional coupler with S parameters.
0 个评论
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!