高选择性SIW腔带通滤波器负载CSRR与干扰通孔，用于Sub-6 GHz应用

IF 0.7 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Progress in Electromagnetics Research Letters Pub Date : 2023-01-01 DOI:10.2528/pierl22122008

Namanathan Praveena, N. Gunavathi

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引用次数: 5

摘要

提出了一种具有微扰过孔和CSRR的窄带、高选择性衬底集成波导(SIW)带通(cid:12)滤波器，用于sub - 6ghz应用。首先，微扰通孔位于SIW腔的对称轴上，使(cid:12)的前两种模式产生不同的电场分布。接下来，在地平面上刻上位于摄动过孔两侧偏移距离处的CSRR，形成混合、磁、电耦合的耦合布置。csrs的存在导致窄频带(cid:12)字母。(cid:12)字母的中心频率为4.947 GHz，分数带宽为1.16%。通过与现有的SIW传统多腔或级联谐振器进行比较，制造的(cid:12)滤波器的尺寸减小了117%。仿真结果与实测结果吻合较好。

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High Selectivity SIW Cavity Bandpass Filter Loaded CSRR with Perturbing Vias for Sub-6 GHz Applications

|A narrowband, high selectivity Substrate Integrated Waveguide (SIW) bandpass (cid:12)lter with perturbing vias and CSRR is proposed for Sub-6 GHz applications. Firstly, the perturbing vias are positioned at the symmetrical axis of the SIW cavity which produces distinct electric (cid:12)eld distribution for the (cid:12)rst two modes. Next, the ground plane is engraved with the CSRR placed at an oﬀset distance on either side of the perturbing vias, forming the coupling arrangement that combines mixed and magnetic, electric coupling. The presence of CSRRs resulted in a narrowband (cid:12)lter. The (cid:12)lter’s center frequency is 4.947 GHz with a fractional bandwidth of 1.16%. By comparing the fabricated (cid:12)lter to an existing SIW conventional multi-cavity or cascaded resonator, a size reduction of 117% is achieved. The simulated and measured results agree with each other.

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来源期刊

Progress in Electromagnetics Research Letters ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.20

自引率

11.10%

发文量