This paper will present the design, implementation, performance analysis of an open source readout system
for arrays of microwave kinetic inductance detectors (MKID) for mm/submm astronomy. The readout system
will perform frequency domain multiplexed real-time complex microwave transmission measurements in order
to monitor the instantaneous resonance frequency and dissipation of superconducting microresonators. Each
readout unit will be able to cover up to 550 MHz bandwidth and readout 256 complex frequency channels
simultaneously. The digital electronics include the customized DAC, ADC, IF system and the FPGA based
signal processing hardware developed by CASPER group.1-7 The entire system is open sourced, and can be
customized to meet challenging requirement in many applications: e.g. MKID, MSQUID etc.
This paper was published in SPIE Proceedings Vol. 7741
Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V, Wayne S. Holland; Jonas Zmuidzinas, Editors, 77411V
