Possibilities to Make Panoramic Receiver–Frequency Meter in Terahertz Band Based on Josephson Junctions

Based on previous theoretical and experimental investigations, possibilities of using Josephson junctions (JJs) to realize a new type of wideband frequency meter integrated with panoramic receiver (PRF) in terahertz band in a single unit were described in this paper. The suggested device can be particularly valuable for experimental purposes in terahertz band, where available equipment for frequency-domain measurements are usually of narrow band and expensive. It will be particularly useful to measure, for instance, the operating frequency of new generators in terahertz band whose radiation power is small, and operating frequency may deviate significantly from its design specification. Such a device can be realized by integrating two circuits in a single unit based on the JJ. The first circuit is a receiver based on JJ operating in a self-pump-mode regime, whereas the second one is a super wideband frequency meter using JJ operating as its natural measuring device.