Miniaturized micrsotrip high-selectivity bandpass filters with asymmetric frequency characteristics

机译：具有非对称频率特性的微型微带高选择性带通滤波器

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A novel transmission line topology, using coupled-line and stepped impedance open-stub, is proposed for the design of compact bandpass filter. The topology produces high selective asymmetric bandpass response by realizing a transmission zero either lower side or higher side of the centre frequency. The overall size of the filter unit is compact, which is less than λ/4 × λ/4. Further due to the dual-mode like behavior, the filter exhibits low insertion loss. Design equations are derived explicitly based on lossless transmission line model analysis. Two filter prototypes operating at S-band having narrow bandwidths (<;10%) and having rejections of about > 30 dB at f±200 MHz are fabricated and demonstrated.

机译：针对紧凑型带通滤波器的设计，提出了一种采用耦合线和步进阻抗开路短截线的新型传输线拓扑。该拓扑通过实现中心频率下侧或上侧的传输零来产生高选择性非对称带通响应。滤波器单元的整体尺寸紧凑，小于λ/ 4×λ/ 4。此外，由于类似双模式的行为，滤波器表现出低的插入损耗。设计方程式是根据无损传输线模型分析明确推导的。制作并演示了两个滤波器原型，它们在具有窄带宽（<; 10％）的S波段工作，并在f±200 MHz时具有约> 30 dB的抑制比。

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来源
《2014 IEEE MTT-S International Microwave and RF Conference, Collocated with Intemational Symposium on Microwaves》|2014年|76-79|共4页
会议地点 Bangalore(IN)
作者
Velidi Vamsi Krishna; Subramanyam A.V.G.; Srinivasan V.V.;
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作者单位

Commun. Syst. Group, ISRO Satellite Centre, Bangalore, India;

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原文格式 PDF
正文语种 eng
中图分类
关键词
band-pass filters; microstrip filters; microwave filters; S-band; compact bandpass filter; coupled-line; high selective asymmetric bandpass response; lossless transmission line model analysis; stepped impedance open-stub; transmission line topology; transmission zero; Band-pass filters; Filtering theory; Microstrip filters; Microwave filters; Resonator filters; Topology; Transmission line measurements; Microsrtip filters; bandpass filters; coupled line; high selectivity; stepped-impedance open-stub;

机译：带通滤波器;微带滤波器;微波滤波器; S波段;紧凑型带通滤波器;耦合线;高选择性非对称带通响应;无损传输线模型分析;阶梯式阻抗开路短截线;传输线拓扑;传输零;带宽-通过滤波器;滤波理论;微带滤波器;微波滤波器;谐振滤波器;拓扑;传输线测量; Microsrtip滤波器;带通滤波器;耦合线;高选择性;步进阻抗开路短截线;;

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2. Miniaturized and high-selectivity substrate integrated waveguide(SIW)bandpass filter loaded by complementary split-ring resonators(CSRRs) [J] . W. Jiang, W. Shen, L. Zhou, Journal of Electromagnetic Waves and Applications . 2012,第11a12期

机译：互补开环谐振器（CSRR）加载的小型化高选择性衬底集成波导（SIW）带通滤波器
3. Miniaturized bandpass substrate integrated waveguide filter with frequency-dependent coupling realized using asymmetric GCPW discontinuity [J] . Jedrzejewski Andrzej, Szydlowski Lukasz, Mrozowski Michal Microwave and optical technology letters . 2015,第8期

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4. Physical Realization of Miniature Bandpass Filters with Single Frequency or Single Sideband Characteristics [C] . McLean D.I. 21st Annual Symposium on Frequency Control. 1967 . -1

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Miniaturized micrsotrip high-selectivity bandpass filters with asymmetric frequency characteristics

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