The ability to calibrate phased array antennas by utilising the mutual coupling method (MCM), which takes advantage of the mutual coupling effect between adjacent elements, is addressed. The basic assumption of the method is that the mutual coupling between adjacent elements is equal for all elements in the array and its major deficiency is its failure in the case of faulty elements. A parametric study to identify the effect of faulty elements in the array has been conducted. It has been shown that displacement of one element in the array may cause a significant error in the calibration, which affects its radiation characteristics (increase in the far side lobe level). The main contribution is the presentation of the effect of faulty elements in the calibration process and the proposal of a way to detect and bypass the faulty elements in a phased array calibrated by the MCM.
ASJC Scopus subject areas
- Electrical and Electronic Engineering
Uwezo wa kuhalalisha antena za safu ya awamu kwa kutumia njia ya kuunganisha kwa pamoja (MCM), ambayo inachukua faida ya athari ya kuunganisha kwa pamoja kati ya vipengele vya karibu. Dhana ya msingi ya mbinu ni kwamba kuunganishwa kwa pamoja kati ya vipengele vya karibu ni sawa kwa vipengele vyote katika safu na upungufu wake mkubwa ni kushindwa kwake katika kesi ya vipengele vyenye kasoro. Utafiti parametric kutambua athari ya vipengele makosa katika safu imefanywa. Ni imeonyeshwa kwamba displacement ya kipengele moja katika safu inaweza kusababisha kosa kubwa katika calibration, ambayo huathiri sifa zake mionzi (kuongezeka katika mbali upande lobe ngazi). Msaada wa msingi ni uwasilishaji wa athari za vipengele vyenye kasoro katika mchakato wa ukadiriaji na pendekezo la njia ya kugundua na kuepuka vipengele vyenye kasoro katika safu ya awamu iliyokadiriwa na MCM. ASIC Scopus Subject Areas - Uhandisi wa Umeme na Elektroniki