  The asymmetry of spin-wave patterns in confined rectangular
Ni$_{80}$Fe$_{20}$ microstrips, both in single and double-strip geometries, is
quantified. The results of TR-STXM and micromagnetic simulations are compared.
For the TR-STXM measurements and the corresponding simulations the excitation
was a uniform microwave field with a fixed frequency of 9.43 GHz, while the
external static magnetic field was swept. In the easy axis orientation of the
analyzed microstrip, the results show a higher asymmetry for the double
microstrip design, indicating an influence of the additional microstrip placed
in close proximity to the analyzed one.
