  We suggest using a device called the Bootstrap Superconducting Quantum
Interference Device (BS-SQUID) to break the reciprocity in charge transport.
This device uses magnetic flux back-action to create a nonreciprocal
current-voltage characteristic, which results in a supercurrent rectification
coefficient of up to approximately 95\%. The BS-SQUID works as a quasi-ideal
supercurrent diode (SD) and maintains its efficiency up to about 40\% of its
critical temperature. The external magnetic flux can be used to adjust or
reverse the rectification polarity. Finally, we discuss the finite-voltage
operation regime of the SD and present a possible application of our device as
a half- and full-wave signal rectifier in the microwave regime.
