A novel compact J‐admittance inverter‐coupled microstrip bandpass filter using arrowhead‐shape as defected ground structure
A novel compact J‐admittance inverter‐coupled microstrip bandpass filter using arrowhead‐shape as defected ground structure
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一种新型紧凑型 J 导纳反相耦合微带带通滤波器，使用箭头形状作为缺陷接地结构
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
A. Omar
中科院分区：
文献类型：
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作者：
A. Boutejdar;S. Amari;A. Omar
这封信报告了一种新的紧凑型端耦合微带带通滤波器的设计，该滤波器具有两个箭头槽作为接地平面中的缺陷接地结构（DGS）[Boutejdar埃塔尔，IEEE AP-SSymp（2005）; Ahn，IEEE Trans Microwave Theory Tech 27（1979），44-50; Won埃塔尔人，IEEE Trans Microwave Theory Tech 49（2001），86-93]。这些槽取代了两个λ/2微带谐振器。两个馈电通过J12-导纳逆变器（间隙g）与顶层上的谐振器间接耦合。这种方法的优点是尺寸比传统设计减小了50%以上，这种结构允许一种方便的方法来控制中心频率和高谐波抑制。从6 GHz到14 GHz，所研究的DGS‐BPF具有优于20 dB的抑制水平。根据设计和测量结果，模拟结果与测量结果之间取得了良好的一致性。© 2009 Wiley Periodicals，Inc. Microwave Opt Technol Lett 52：34-38，2010;在线发表于Wiley InterScience（www.interscience.wiley.com）。DOI 10.1002/mop.24817
This letter reports a new design of compact end‐coupled microstrip bandpass filter with two arrowhead slots as defected ground structure (DGS) in the ground plane [Boutejdar etal., IEEE AP‐SSymp (2005); Ahn, IEEE Trans Microwave Theory Tech 27 (1979), 44–50; Won etal., IEEE Trans Microwave Theory Tech 49 (2001), 86–93]. These slots replaced two λ/2‐microstrip resonators. Both feeds are indirectly coupled with the resonator on top layer by means of a J12 ‐admittance inverter (gap g). This method gives an advantage of size reduction over the conventional design by more than 50%, this structure allows for a convenient method to control the center‐frequency and high suppression of harmonics. From 6 to 14 GHz, the investigated DGS‐BPF has a rejection level better than 20 dB. According to design and measurement results, a good agreement between simulated and measured results is achieved. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 34–38, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24817