  In this paper we experimentally demonstrated a broadband microwave scheme
suitable for the multiresonator quan- tum memory-interface. The microwave
scheme consists of the system of composed mini-resonators strongly inter-
acting with a common broadband resonator coupled with the external microwave
waveguide. We have implemented the controllable tuning of the mini-resonator
frequencies and coupling of the common resonator with the external waveguide
for the implementation of the impedance matched quantum storage. The storage of
microwave pulses with an efficiency of 16.3% has been shown experimentally at
room temperature. The possible properties of the proposed scheme for
mini-resonators with high-Q at low temperatures are discussed. The obtained
results pave the way for the implementation of superefficient broadband
microwave quantum memory-interface.
