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This paper presents the results in frequency tuning of a ferrite supported resonating CPW antenna based on CRLH (composite right/left-handed) transmission lines. The tuning is obtained by magnetically polarizing the ferrite substrate with a magnetic biasing field variable between 0 T and 0.26 T. Data obtained by simulation with a suitable microwave software indicate a frequency shift of 530 MHz at...
A CPW (coplanar waveguide) coupled-line directional coupler based on CRLH (composite right/left-handed) cascaded structures is designed, analyzed and then fabricated. The technological realization of the coupler involves one mask process on silicon substrate. The measured frequency bandwidth is from 10.5 GHz up to 13.5 GHz fitting well the simulation results.
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