Este formata dintr-un cadru dreptunghiular compus din doua semiunde, una Ia partea superioara a cadrului si alta la partea inferioara, alimentate printr-o linie compusa din conductoare paralele, a carei impedanta…
Prezinta o banda larga de lucru si este formata din doua patrate, amplasate unul deasupra celuilalt, alimentate central (fig. 253 a) si excitate sinfazic. Antena radiaza unde electromagnetice polarizate orizontal.…
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