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... number of works on the analysis of properties of resonant microstrip radiators in the array antennas (AA) has increased. If using such radiators the service frequency band... ... 35% at voltage standing wave ratio =1,5 [1]. This work shows that the use of microstrip radiators with small electrical sizes placed over the impedance surface in the... ... channel, 2 − radiator, 3 − impedance surface Let’s make a mathematical model of a flat periodic AA made of strip conductors (SC) placed parallel to the surface...