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The technology of inverters parallel connection has become a new research hotspot. In this paper, a modified droop control strategy, cooperated with virtual impedance technology, has been presented in order to suppress circulating current. Simulation and experiment of two three-phase inverters proved this theory.
In this paper, a novel ultra-wide band (UWB) bandpass filter(BPF) based on combined technology has been detailed researched. The proposed filter is constructed by composite right/left handed transmission line (CRLH TL) and Sierpinski carpet shaped six-staged stepped impedance lines for the first time. CRLH TL are mainly consists of Koch loop shaped defected ground structure (KDGS) etched in the ground...
This paper presents novel 3-dB branch-line coupler by combining the technology of fractal geometry and composite right/left handed transmission line (FCRLH TL) for the first time. The designed branch-line coupler operating at 0.88GHz has been successfully designed. Simultaneously, the proposed FCRLH TL cell has been detailed investigated by the method of electrical parameters extraction process, and...
Microstrip-line-fed printed wide-slot antenna with a fractal-shaped slot for bandwidth enhancement is proposed and experimentally studied. By etching the wide slot as fractal shapes, it is experimentally found that the operating bandwidth can be significantly enhanced, and the relation between the bandwidth and the iteration order (IO) and iteration factor (IF) of the fractal shapes is experimentally...
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