Abstract

The objective of this work is to achieve a compact wideband band-stop filter using complementary split ring resonators (CSRR) as the fundamental element. The relation between the geometry and resonances of the CSRR were studied analytically along with their field distribution to determine the factors governing coupling between the rings of the CSRR. The effects of the inner-outer ring orientation on resonances of the CSRR has been studied and the resulting properties have been used to design the proposed compact wideband band-stop filter prototype operating with a center frequency of 2.5 GHz and a bandwidth of 1 GHz. The area of the proposed filter is 0.078 λg² with a fractional bandwidth of 39.76%. This structure has following advantages: more compact, wide bandwidth and occupies less area. The fabricated prototype was tested and the results were promising representing this works potential.

中文翻译：

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紧凑的宽带阻带滤波器，采用阶梯状互补开口环谐振器

摘要

这项工作的目的是要实现一个紧凑的宽带带阻滤波器，它使用互补的裂环谐振器（CSRR）作为基本元件。对CSRR的几何形状和共振之间的关系及其场分布进行了分析研究，以确定控制CSRR环之间耦合的因素。研究了内外环取向对CSRR谐振的影响，并使用所得的特性来设计建议的紧凑型宽带阻带滤波器原型，该原型以2.5 GHz的中心频率和1 GHz的带宽工作。所提出的过滤器的面积是0.078λg的²带宽为39.76％。这种结构具有以下优点：更紧凑，带宽更宽，占用面积更少。测试了制成的原型，结果令人鼓舞，代表了这项工作的潜力。