Increase reliability of ultrahigh-frequency channels of the active phased array antenna modules

Currently in the world active work is underway to study the structure of the transmit-receive module of the active phased array antenna (APAA) as well as its composite elements. Their reliability indicators depend significantly on the choice of the multi-channel module and APAA scheme, therefore operational costs that can be optimized at the design stage, thereby minimizing the cost of living of the entire system, also depend on that. Reliability indicators essentially depend on the choice of the scheme of the multichannel module and APAA as a whole, therefore also operational cost, which can be optimized at the design stage, thereby minimizing the cost of operating the entire system. The influence of circuit solutions of modules and reliability of their functional nodes on reliability characteristics of APAA is considered in the article. It is shown that the more ultrahigh-frequency (UHF) channels in the module, the worse the reliability characteristics of APAA. It follows that an obvious way to improve the reliability characteristics of APAA is to switch to single-channel modules. Calculated values of the mean time between failures of APAA are given for various failure scenarios of the elements included in the modules.