  Coupling carbon nanotube devices to microwave circuits offers a significant
increase in bandwidth and signal-to-noise ratio. These facilitate fast
non-invasive readouts important for quantum information processing, shot noise
and correlation measurements. However, creation of a device that unites a
low-disorder nanotube with a low-loss microwave resonator has so far remained a
challenge, due to fabrication incompatibility of one with the other. Employing
a mechanical transfer method, we successfully couple a nanotube to a gigahertz
superconducting matching circuit and thereby retain pristine transport
characteristics such as the control over formation of, and coupling strengths
between, the quantum dots. Resonance response to changes in conductance and
susceptance further enables quantitative parameter extraction. The achieved
near matching is a step forward promising high-bandwidth noise correlation
measurements on high impedance devices such as quantum dot circuits.
