Two types arrays of ring half – wave and electrically small antennas (the typical sizes of the elements correspond to 1/10 of the wavelength) of SubTHz band with integrated Superconductor – Insulator – Normal metal – Insulator-Superconductor (SINIS) bolometers have been developed, fabricated and investigated. It is necessary to make numerical modeling of the full structure and to use additional reference channels in experimental studies for improving the accuracy of the spectral response estimations of receiving arrays. In this work, three reference channels were used for normalization: a pyroelectric receiver outside the cryostat and two cold channels – a RuO2 bolometer and chain of NIS junctions as a thermometer.

We have designed, fabricated, and experimentally studied a Superconductor-Insulator-Normal Metal-Insulator-Superconductor (SINIS) bolometer integrated in a twin-slot antenna with central frequency of 90 GHz and connected to a superconducting coplanar readout resonator. Such single pixel is intended for multichannel matrix of high-sensitive receiver for radioastronomy, in which readout of many channels is arranged via single coaxial cable instead of separate wires and separate amplifiers for each channel.