A new high-power, dual-band, E-plane, ferrite circulator

The design, simulation and enhancing performance of a new structure for X-band high-power, low-loss, low-bias, triangular-ferrite waveguide circulator is presented. Dual circulation property is obtained by triangular shape of ferrite post. The effects of circulator´s structure parameters, such as ferrite parameters and magnetic DC bias, on isolation, insertion loss and return loss of circulator are discussed. 20 dB return loss, 20 dB isolation and 0.1 dB insertion loss in dual frequency in X-band (8.2 Ghz & 10.4 Ghz) with only a magnetic bias of 10 Oe are obtained from CST microwave studio and Ansoft HFSS simulations which have good agreement to each other and shows remarkable response of those type of circulators.