The Study of a Novel Combinatorial Nonperiodic Defected Ground Structure
WANG Lei1, DING Rong-lin1, WANG An-guo1, HU Jun-jie1, LI Zeng-lu2, HE Qing-guo2, YUE Bo-lin2
1. College of Electronic Information Engineering Tianjin University,Tianjin 300072,China;2. Hebei Semiconductor Research Institute,Shijiazhuang,Hebei 050051,China
Abstract：A novel combinatorial nonperiodic defected ground structure (CNPDGS) with daul-stopband is proposed.The microwave circuits with the CNPDGS structure are simulated by finite-difference time-domain (FDTD) method.The influences of lattice dimensions on the characteristic of frequency are studied.The filters with daul-stopband formed by microstrip and proposed CNPDGS are designed and manufactured.The curves of the simulated results and measured results are presented.The measured results are in agreement well with the simulated results.For the filter,the pass-band between the two stopbands is tunable.The location and the bandwidth of the pass-band are varied with the sizes of lattice dimension.The distance between two stop-bands can be changed from 3.5GHz to 12GHz.The filter with the expected pass-band can be obtained by the selection of the lattice dimension.The filter with proposed CNPDGS can effectively reject the lower frequencies and higher frequencies in signal.
王雷;丁荣林;王安国;胡俊杰;李增路;何庆国;乐柏林. 组合式非周期缺陷接地结构的滤波特性研究[J]. 电子学报, 2005, 33(2): 375-377.
WANG Lei;DING Rong-lin;WANG An-guo;HU Jun-jie;LI Zeng-lu;HE Qing-guo;YUE Bo-lin. The Study of a Novel Combinatorial Nonperiodic Defected Ground Structure. Chinese Journal of Electronics, 2005, 33(2): 375-377.
2005, Vol. 33 
