Large format antenna coupled micorwave kinetic iinductance detector arrays for radioastronomy

The realization of large format fully sampled sensitive focal plane arrays of direct detectors is a long standing development goal for advanced astrophysical instrumentation for submillimeter wavelengths. Recently a superconducting microwave kinetic inductors detector (MKID) technology has been developed which offers high sensitivity and unprecedented multiplexing ratio. We report on development of MKID antenna coupled MKID arrays for 350μm and 850μm atmospheric transmission windows each containing of order of 5000 and 1000 detectors per superconducting chip respectively. We present design and measurement results on first detector chips including pixel responsivity, noise distribution and detector yields.