  We designed and fabricated a time-reversal invariant Weyl photonic crystal
that possesses single Weyl nodes with topological charge of 1 and double Weyl
nodes with a higher topological charge of 2. Using numerical simulations and
microwave experiment, nontrivial band gaps with nonzero Chern numbers for a
fixed kz was demonstrated. The robustness of the surface state between the Weyl
photonic crystal and PEC against kz-conserving scattering was experimentally
observed.
