Ruipu Yao

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Periodic defected ground structures (PDGS) with rectangular defected areas has excellent low-pass properties when periodic unit amounts and structure sizes meet definite conditions. Microwave low-pass filter (LPF) is a kind of device which can separate different signals within microwave frequency range, widely used in microwave communication system. The(More)
Microwave filter is the kind of device which can separate different signals within a certain band of microwave frequency, widely used in microwave communication system. Periodic defected ground structures (PDGS) with defected rectangles have excellent filter properties when periodic unit amounts and structure sizes meet appropriate conditions. In this(More)
Periodic defected ground structures (PDGS) are the structures that are etched periodically on their ground plane, which can be used to prohibit the propagation of electromagnetic waves within a certain band of microwave frequency. PDGS with defected triangles can be used to prohibit the propagation of electromagnetic waves within a certain band of microwave(More)
PDGS with defected rectangles can be used to prohibit the propagation of electromagnetic waves within a certain band of microwave frequency. The precise S parameters of PDGS are obtained through FDTD analysis in this paper. PDGS with defected rectangles have excellent stopband characteristic when periodic unit amounts and structure sizes meet definite(More)
Microwave filter is a kind of device which can separate microwave signals with different frequencies, and the filter has widely been utilized in a great many fields such as communication, signal processing, radar etc. Combinatorial non-periodic defected ground structures (CNPDGS) can be used to prohibit the propagation of electromagnetic waves within a(More)
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