论文部分内容阅读
针对传统的缺陷地结构品质因数低、不足以产生尖锐的谐振特性问题,提出了一种新颖的S形缝隙缺陷地结构.与传统的缺陷地结构相比,该结构具有更高的品质因数、相对更简单而紧凑的布局和更陡峭的阻带特性.通过分析其传输特性提取了该结构的等效电路模型,推导了其结构参数的设计方程,研究了该结构的传输特性随结构参数变化的规律,并总结了设计该S形缝隙缺陷地结构的经验方法.根据此方法设计加工了一个中心频率为4.64GHz的S形缝隙缺陷地结构样品,其品质因数高达39.66,尺寸大小仅为5.00mm×1.40mm,谐振带陡峭而通带插入损耗小,测量结果和仿真结果相吻合,从而验证了该S形缝隙缺陷地在实际工程上的适用性.
In order to solve the problem of low quality factor and insufficient sharp resonance characteristic, a novel structure with S-shaped cracks is proposed, which has higher quality factor than the traditional structure with defects. Relatively simple and compact layout and steeper stopband characteristics.An equivalent circuit model of the structure is extracted by analyzing its transmission characteristics and the design equations of the structure parameters are deduced.The transmission characteristics of the structure are studied with the change of structure parameters And summarizes the empirical method of designing the structure of the S-shaped gap defect.A structural sample of S-shaped gap defect with a center frequency of 4.64GHz is designed and processed according to this method, with a quality factor of 39.66 and a size of only 5.00 mm × 1.40mm, the resonant band is steep and the insertion loss of the passband is small. The measured results agree well with the simulation results, which verifies the practical applicability of the S-shaped gap defect.