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A tunable and compact LH transformer has been presented. The proposed transformer has been designed in CPW configuration on ferrite substrate. The transformer has been studied analytically and its performance is verified numerically. The results show a tuning capability of the proposed transformer compared to the identical dielectric transformer by changing the applied DC magnetic bias.
A novel coplanar waveguide ferrite-coupled line (CPW FCL) is presented and numerically verified for the first time. The proposed CPW FCL exhibits a low insertion loss for both even and odd mode excitations, equal power division for single power excitation with both isolation, and return loss better than 10 dB over the whole operating bandwidth, and 20 dB in the best cases. The coupler has a much wider...
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