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首页> 外文会议>IEEE MTT-S International Microwave and RF Conference >Planar ultra-wideband filter with triple notches and improved out-of-band performance
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Planar ultra-wideband filter with triple notches and improved out-of-band performance

机译：具有三个陷波并改善了带外性能的平面超宽带滤波器

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摘要

Planar Ultra-wideband (UWB) filter with controllable triple notches and simultaneously improved out-of-band performance is proposed. Initially an UWB filter is modeled based on back-to-back microstrip to co-planar waveguide (CPW) technology. Later, defected ground structures (DGS) are implemented to generate controllable notches and extended stopband. Complementary folded split ring resonators (CFSRR) implemented in the ground generate passband notches whereas cancelling of spurious stopband harmonics using dual attenuation poles of the double equilateral-U (DEU) DGS brings about extended stopband. An approximate lumped equivalent circuit model of the proposed filter structure is presented. Full wave and circuit simulations are in appreciable agreement with measured results.
机译：提出了具有可控三重陷波并同时改善了带外性能的平面超宽带（UWB）滤波器。最初，UWB滤波器是基于背对背微带至共面波导（CPW）技术建模的。后来，实施了缺陷地面结构（DGS）以生成可控制的陷波和扩展的阻带。在地面上实现的互补折叠环谐振器（CFSRR）会产生通带陷波，而使用双等边U（DEU）DGS的双衰减极点来消除寄生阻带谐波，则会导致阻带扩展。提出了所提出的滤波器结构的近似集总等效电路模型。全波和电路仿真与测量结果相当一致。

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