摘要

The microwave power handing capability Pc of the microstrip lines of the isomorphic '1212' pair is studied for the superconductors TlBa(2)CaCu(2)O(7) and HgBa(2)CaCu(2)O(6+delta) d at >= 77 K. The Pc for the pair follows the same temperature dependence at a reduced temperature scale (t = T/T(c)). A comparison of the dc critical current density J(c) and the radio-frequency one J(rf) derived from the P(c) of the '1212' pair reveals a similar red