  Perfect drain for the Maxwell Fish Eye (MFE) is a non-magnetic dissipative
region placed in the focal point to absorb all the incident radiation without
reflection or scattering. The perfect drain was recently designed as a material
with complex electrical permittivity that depends on frequency. However, this
material is only a theoretical material, so it can not be used in practical
devices. Recently, the perfect drain has been claimed as necessary to achieve
super-resolution [Leonhard 2009, New J. Phys. 11 093040], which has increased
the interest for practical perfect drains suitable for manufacturing. Here, we
analyze the super-resolution properties of a device equivalent to the MFE,
known as Spherical Geodesic Waveguide (SGW), loaded with the perfect drain. In
the SGW the source and drain are implemented with coaxial probes. The perfect
drain is realized using a circuit (made of a resistance and a capacitor)
connected to the drain coaxial probes. Super-resolution analysis for this
device is done in Comsol Multiphysics. The results of simulations predict the
super-resolution up to wavelength/3000 and optimum power transmission from the
source to the drain.
