2. Analog Superconductivity Electronics

In this chapter we present results of achievement of modern analog superconducting electronics. In first section we discuss physical foundation and characteristics of superconducting edge bolometers. The influence of HTS materials on the characteristics is analyzed. Second section deals with description of samplers based on JJs. Two types of comparators-on single junction and balanced comparators are discussed. Presented results of linear theory for the estimation of time resolution of JJ comparators. Comparators using RSFQ technique discussed and ultimate characteristics presented. Third section is devoted to AC and DC SQUID magnetometers. Firstly, single and two-junction interferometers, the influence of d-wave order parameter symmetry on the characteristics are described. Furthermore, using these interferometers as sensitive elements of SQUIDs and characteristics is presented. Next section devoted to description of current state of superconducting microwave devices. Last topics in this chapter are using JJs in meteorology and description of multi-terminal superconducting devices.