skrf.network.flip

skrf.network.flip(a)[source]

Invert the ports of a networks s-matrix, ‘flipping’ it over left and right.

In case the network is 2n-port and n > 1, ‘second’ numbering scheme is assumed to be consistent with the ** cascade operator:

    +--------+                 +--------+
  0-|0      n|-n             0-|n      0|-n
  1-|1    n+1|-n+1    flip   1-|n+1    1|-n+1
   ...      ...       =>       ...      ...
n-1-|n-1 2n-1|-2n-1        n-1-|2n-1 n-1|-2n-1
    +--------+                 +--------+

Parameters:: a (numpy.ndarray) – scattering parameter matrix. shape should be should be 2nx2n, or fx2nx2n
Returns:: c – flipped scattering parameter matrix
Return type:: numpy.ndarray