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An improved double-thickness method combined with genetic algorithm was developed to determine the optical constants of liquid hydrocarbon fuels. Different from traditional transmission measurement, it obtained the total transmittance of a window-liquid-window three-layer structure, which is the ratio of the transmission intensity of the filled cell and(More)
The slotted substrate integrated waveguide (SSIW) phase shifter with periodic loading varactors is presented. With appropriate numbers of varactors placed on the SIW's surface, the phase of two-port device could be varied with the varactors' capacitance, which is inversely proportional to the bias voltage. To prove it, a phase shifter installed seventeen(More)
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