Electronics Letters · 2007 · 10 citations · 8 references
EngineeringElectrical EngineeringMaterials ScienceElectromagneticsMagnetic MaterialsMicrowave EngineeringIntegrated Circuit DesignMicrowave Device SimulationMicrowave Integrated CircuitsMicrowave Network AnalysisMicrowave Transmission LinesRadio-frequency Integrated CircuitsCoupled-mode AnalysisCoupled-mode TheoryInsertion LossMicrowave Circulator DesignMicrowave Integrated Circuit DesignMillimeter-wave Integrated CircuitsMonolithic Microwave Integrated Circuit DesignMonolithic Microwave Integrated Circuits
A new structure of integrated planar metal magnetic film coupled line (MMFCL) circulators is presented, in which a metal magnetic film is used instead of ferrite materials. Simulation was performed with HFSS based on coupled-mode theory. An insertion loss of 4 dB and isolation of −13.5 dB between S21 and S12 over a frequency band of 3 GHz (from 36.5 to 39.5 GHz) were realised for a three-port MMFCL circulator.
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