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Junction Circulators


    The junction circulators provide the nonreciprocal behaveior or ferrite material to transfer microwave energy. The ideal circulator is defined as n-port lossless passive network in which energy introduced at one port is transferred wholly to an adjacent prot while decoupling the energy from all other prots. The basic symbol of circulators if the three port circulator, which is illustrated in figure1, signal applied to prot 1will appear at port 2 will trave to port 3, not back to port 1, Either port 2 or port 3 could be used as an input with the same result. The signal would only travel in a forward direction , because, theoretically, energy cannot flow opposite to the direction of circulation.