Efficient radio frequency filters for space constrained cryogenic setups

Rev Sci Instrum. 2011 Feb;82(2):024704. doi: 10.1063/1.3543736.

Abstract

Noise filtering is an essential part for measurement of quantum phenomena at extremely low temperatures. Here, we present the design of a filter which can be installed in space constrained cryogenic environment containing a large number of signal carrying lines. Our filters have a -3 db point of 65 kHz and their performance at GHz frequencies is comparable to the best available RF filters.