  Applying a dimensional reduction technique and a coordinates transformation
approach, we deduce the Kerr-Newman space-time into a Painlev\'{e}-like form,
and obtain its corresponding event horizon and the Hawking radiation
temperature. We find that, the event horizon of a Kerr-Newman black hole can be
simulated in a superconducting transmission line. Moreover, by running some
numerical simulation, we confirm that the Hawking radiation of a Kerr-Newman
Black Hole can be experimentally measured in a superconducting transmission
line.
