We present a technical approach for the design of a small, portable, microwave cold atomic clock that meets the frequency stability requirement of less than 1X10-12 at 1 s averaging time and less than 5X10-15 for an averaging time of 1 day in the followin
Keywords: portable atomic clock,Rubidium frequency standard,Cesium clock,atomic frequency standard, miniature microwave atomic clock, Rubidium clock, microwave synthesizer, cold atom at