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首页> 外文会议>2010 18th Iranian Conference on Electrical Engineering >A new quasi-elliptic UWB BPF with a sharp transition band using 3/4-wavelength SIRs
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A new quasi-elliptic UWB BPF with a sharp transition band using 3/4-wavelength SIRs

机译：一种新的准椭圆UWB BPF，具有使用3/4波长SIR的陡峭过渡带

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摘要

A new ultra-wideband (UWB) bandpass filter composed of two parallel coupled stepped impedance resonators (SIRs) is proposed. Each resonator is tapped with stepped-impedance open stubs at its center providing a very sharp transition band and two uniform open stubs at the junctions of the low- and high-impedance sections to slide the upper resonant modes. Two interdigital parallel coupled lines are used to enhance couplings at input and output of the circuit. A planar UWB bandpass filter with a quasi-elliptic function response and a fractional bandwidth of about 110% (from 3.1GHz to 10.6GHz) is designed and simulated by Ansoft HFSS EM simulator. Simulated response of the filter shows an insertion loss of 0.6 dB, a return loss of 15 dB and a flat group delay of 0.4 ns in the passband.
机译：提出了一种新的超宽带（UWB）带通滤波器，该滤波器由两个并行耦合的步进阻抗谐振器（SIR）组成。每个谐振器在其中心处都带有步进阻抗开放式抽头，以提供非常尖锐的过渡带，并在低阻抗和高阻抗部分的交界处提供了两个均匀的开放式抽头，以滑动上谐振模式。两条叉指并联耦合线用于增强电路输入和输出的耦合。 Ansoft HFSS EM仿真器设计并仿真了具有准椭圆函数响应和分数带宽约为110％（从3.1GHz到10.6GHz）的平面UWB带通滤波器。滤波器的仿真响应显示，通带中的插入损耗为0.6 dB，回波损耗为15 dB，平坦群延时为0.4 ns。

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