N=2 conformal superspace in four dimensions

We develop the geometry of four dimensional N = 2 superspace where the entire conformal algebra of SU(2, 2 vertical bar 2) is realized linearly in the structure group rather than just the SL(2,C) x U(2)(R) subgroup of Lorentz and R-symmetries, extending to N = 2 our prior result for N = 1 superspace. This formulation explicitly lifts to superspace the existing methods of the N = 2 superconformal tensor calculus; at the same time the geometry, when degauged to SL(2,C) x U(2)(R), reproduces the existing formulation of N = 2 conformal supergravity constructed by Howe.