A Novel Bandpass Filter Using a Combination of Open-Loop Defected Ground Structure and Half-Wavelength Microstrip Resonators
作者: P. VagnerM. Kasal
刊名: Radioengineering, 2010, Vol.19 (3), pp.392
来源数据库: Directory of Open Access Journals
关键词: Defected ground structure (DGS)bandpass filterDGS resonatorslot resonatoropen-loop resonatorhalf-wavelength microstrip resonatorChebyshev prototype filter
原始语种摘要: This paper deals with a defected ground structure (DGS) open-loop resonator analysis and bandpass filter design, using coupled DGS and microstrip resonators. The combination of DGS and microstrip resonators allows using top and bottom sides of the microwave substrate, therefore the resonators can partially overlap and a desired coupling coefficient can be easily achieved. The open-loop DGS resonator properties are investigated, as well as coupling types between the resonators. Finally, two bandpass filters are designed and simulated. The sixth order filter is fabricated and the results are compared with measurement. The introduced structure represents an alternative to a conventional parallel-coupled half wavelength microstrip resonator bandpass filter.
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  • bandpass 带通
  • resonator 共振器
  • filter 过滤机
  • microstrip 微波传输带
  • coupled 耦合
  • fabricated 制造
  • coupling 连接
  • Filter 过滤器
  • coefficient 系数
  • parallel 平行的