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首页> 外文会议>2016 Al-Sadiq International Conference on Multidisciplinary in IT and Communication Techniques Science and Applications >A dual-band bandpass filter using single unit cell of complementary split ring resonator with third harmonic reduction
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A dual-band bandpass filter using single unit cell of complementary split ring resonator with third harmonic reduction

机译：使用具有三阶谐波降低的互补开口环谐振器的单个单位单元的双带通滤波器

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摘要

A Filter block has been highly attention due to it's highly importance in wireless communication systems. High harmonic level normally companies with the performance of the filter block. The use of both low-pass or band-stop filter and the step-impedance lines methods to reduce the spurious characteristics of the filter are not a practical solutions since that adds more complexity and large in size. On the other hand, multiband components are preferable in most modern wireless system applications. In this paper, a single unit cell of a complementary split ring resonator designed on the ground plane of the conventional five pole bandpass filter has been proposed and considered as more practical method to excite the second bandpass frequency band and to solve the important filter problem in terms of third order harmonic characteristic suppression (3fo). The final structure has been simulated using the CST Microwave Studio. The simulated result for the proposed construction was extracted and displayed together with the measured result of the conventional five pole prototype structure. The outputs showed good agreement between them also return loss enhancement is very clear through the combination between the complementary split ring resonators and band pass filter. Other advantages no complexity adds, and low in effective cost.
机译：由于Filter块在无线通信系统中非常重要，因此备受关注。高谐波水平通常与滤波器模块的性能有关。使用低通滤波器或带阻滤波器以及步进阻抗线方法来减少滤波器的寄生特性都不是实际的解决方案，因为这会增加更多的复杂性和更大的尺寸。另一方面，在大多数现代无线系统应用中，多频带组件是可取的。本文提出了一种在传统的五极带通滤波器的接地面上设计的互补开口环谐振器的单晶胞，它被认为是激发第二个带通频带并解决重要的滤波器问题的更实用的方法。三阶谐波特性抑制项（3fo）。最终结构已使用CST Microwave Studio进行了模拟。提取拟建结构的模拟结果，并与常规五极原型结构的测量结果一起显示。输出显示出它们之间的良好一致性，并且通过互补开口环谐振器和带通滤波器的组合，回波损耗增强非常明显。其他优点没有增加复杂性，并且有效成本低。

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