Towards receiving wide-band superconductor antenna unit technology

Abstract

Substantial progress in superconductor analog to digital converters (ADCs) and digital circuitry makes possible development and implementing broadband receiving systems with direct signal digitizing and by single ADC and following digital extraction of sub-bands with programmable band location and bandwidth. To provide the overall system performance as high as the superconductor ADC allows, one has to develop and implement a completely superconductive receiving antenna unit with using active superconductor antenna The antenna characteristic and design issues are considered and discussed in the paper.