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首页> 外文期刊>International journal of RF and microwave computer-aided engineering >Compact Bandpass Filter Based on SIW Loaded by Open Complementary Split-Ring Resonators
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Compact Bandpass Filter Based on SIW Loaded by Open Complementary Split-Ring Resonators

机译：基于开放互补开口环谐振器加载的基于SIW的紧凑型带通滤波器

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摘要

A compact substrate integrated waveguide (SIW) with open complementaryrnsplit-ring resonators (OCSRRs) loaded on the waveguide surface is proposed. The OCSRRsrncan be interpreted in terms of electric dipoles and they are good candidates to behave asrnelectric scatterers. By loading OCSRRs on the waveguide surface, a forward-wave passbandrnpropagating below the waveguide cutoff frequency is generated. The resonance frequencyrnof the OCSRRs is approximately half of the resonance frequency of the complementaryrnsplit ring resonator (CSRR). Therefore, the electrical size of this particle is larger thanrnthe CSRRs and the OCSRRs are more appropriate for the SIW miniaturization. A bandpassrnresponse with a sharp rejection frequency band is obtained by properly manipulatingrnthe structure of the elements. By changing the orientation of the OCSRRs, two types of unitrncell are proposed. Moreover, by resizing the OCSRRs, resonance frequency can be easilyrnmoved and the bandwidth can be tuned by the coupling between two OCSRRs. Comparedrnwith some other reported bandpass filters (BPFs) with SIW technique, the presented BPFrnhas great improvements on size reduction and selectivity. To verify the methodology, twornfilters with center frequency of 5.5 GHz are designed and measured. The measured resultsrnare in good agreement with the simulated ones.
机译：提出了一种紧凑的衬底集成波导（SIW），其在波导表面上装有开放的互补开口环谐振器（OCSRR）。可以用电偶极子来解释OCSRRsrn，它们是表现非电散射体的良好候选者。通过在波导表面上加载OCSRR，可以生成在波导截止频率以下传播的前向通带。 OCSRR的谐振频率大约是互补裂环谐振器（CSRR）的谐振频率的一半。因此，该粒子的电尺寸比CSRR大，而OCSRR更适合SIW小型化。通过适当地操纵元件的结构，可以获得具有陡峭抑制频带的带通响应。通过改变OCSRR的方向，提出了两种类型的单位单元。此外，通过调整OCSRR的大小，可以很容易地移动谐振频率，并且可以通过两个OCSRR之间的耦合来调节带宽。与其他报道的带SIW技术的带通滤波器（BPF）相比，所提出的BPF在尺寸减小和选择性方面有很大的改进。为了验证该方法，设计并测量了中心频率为5.5 GHz的两个滤波器。测量结果与模拟结果吻合良好。

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