  Weyl points (WPs), as nodal degenerate points in three-dimensional (3D)
momentum space, are ideal if they are symmetry-related, well-separated,
residing at the same energy and far from the nontopological bands. Although
type-II WPs show some unique features compared with type-I counterparts, ideal
type-II WPs have not yet been reported due to the lack of an ideal Weyl system
with enough flexibility to tilt the dispersion bands. By stacking
two-dimensional (2D) layers of inductor-capacitor (LC) resonator dimers with
the breaking of parity inversion symmetry, here we experimentally realize the
topological circuits with only the topological bands and observe a minimal
number of four ideal type-II WPs. Two hallmark features of type-II WPs: a
strongly tilted band structure with two group velocities having the same sign
near type-II WPs and the topological surface states in an incomplete bandgap
have been demonstrated. Our results establish an ideal system to the further
study of Weyl physics and provide a new perspective to the access of
topological matters.
