Adjustable metamaterial phase shifter based on active device
A technology of active devices and metamaterials, applied in the direction of waveguide devices, electrical components, circuits, etc., can solve the problems that the working frequency cannot be adjusted, limit the application of metamaterial structures, etc., and achieve the effect of compact structure
Inactive Publication Date: 2018-09-11
DONGHUA UNIV
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Abstract
The invention relates to an adjustable metamaterial phase shifter based on an active device. The adjustable metamaterial phase shifter comprises a metamaterial unit for realizing a negative refractiveindex, and a series capacitor and a parallel inductor on a metamaterial unit transmission line; the overall phase shift value is a combination of the metamaterial unit and a phase shift unit composedof a capacitive inductor. The invention is a compact microwave and millimeter wave band phase shifter realized by an active device. The phase shifter can realize negative phase shifting characteristics without going through the entire cycle, and can be applied to phased array radars and communication systems. Moreover, the phase shifter does not use the method that the conventional phase shiftersset different propagation paths to generate a phase shift through switches, and the structure is more compact.
Application Domain
Waveguide type devices
Technology Topic
Phase shiftedWave band +14
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