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A unequal power divider using anti-coupled and Microstrip Metamaterial Lines over a large bandwidth is proposed. The structure comprises anti-coupled power divider, followed by a +90° negative-refractive index (NRI) metamaterial (MM) phase-shifting line along the top branch, and traditional microstrip line along the bottom branch. The structure is used to deliver flexible variation of power division...
A dielectric resonator stabilized oscillator with output frequency at 17.4GHz is designed. The oscillator is based on push-push configuration, composed of two identical series feedback dielectric resonator oscillator (DRO). The precise design procedure of series feedback dielectric resonator oscillator is presented and corresponding calculation program is compiled to simplify the simulation and improve...
A new method is proposed to determine the complex permeability of ferromagnetic thin films from 100 MHz to 15 GHz. In this method, shorted microstrip transmission-line perturbation combined with the conformal mapping method is used. In contrast with previous methods to measure the thin films deposited on rigid substrates, this method neither requires any reference sample for calibration, nor requires...
A new method is proposed in this paper to measure the electromagnetic parameters of thin film materials. The multiple microstrip is used as measure configuration. The formulations are deduced to calculate the electromagnetic parameters of the thin films, and the commercial software IE3D is used to obtain the S-parameters of the configuration. The results show that, by using this proposed method, the...
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