A filter includes a waveguide with at least one impedance structure with a resonant frequency. The impedance structure is positioned in the waveguide to reflect signals at the resonant frequency. The filter can be tunable by including variable capacitance devices in the impedance structure(s) so ...
Experimental/ band-stop filtersfinite element analysisrectangular waveguideswaveguide filters/ controllable waveguide bandstop filters-shaped ring resonatorsrectangular waveguideband-rejection waveguide filteradjustable bandwidthcutoff frequencyfinite element simulation/ B1310 Waveguides and microwave transmission lines B...
PURPOSE:To form a waveguide band stop filter having the attenuation with >=2 frequencies and a reduced length in the axial direction of a rectangular waveguide, by connecting the resonators having different resonance frequencies to >=2 side faces of the waveguide at the approximately same positions...
A new classic dual-band waveguide band-stop filter of high performance is presented for high performance. It is designed with a new topology based on an im... ZN He,XL Wang,SH Han,... - 《Journal of Electromagnetic Waves & Applications》 被引量: 23发表: 2008年 Ultra-compact, broadband...
带阻滤波器chebyshevfilterwaveguideband 广义切比雪夫波导带阻滤波器设计 刘晓锋王锡良杨颖 电子科技大学电子工程学院,四川成都610054 摘要:广义切比雪夫带阻滤波器含有相移的设计可以使带阻滤波器实现任意位置的反射零点。含有相移的网络 在实现之前必须进行优化以减少杂散波的影响,据此从低通原型电路出发,设计制作并测试了...
For narrow-band applications, the iris filter is connected in tandem with a Mumford inductive-post filter; the former compensates for the deterioration in far-off-band attenuation in the latter. The frequency response of the composite filter has a passband with a width of 40 to 100 Mc per ...
A novel compact stop band filter consisting of a 50 /spl Omega/ coplanar waveguide (CPW) with split ring resonators (SRRs) etched in the back side of the substrate is presented. By aligning SRRs with the slots, a high inductive coupling between line and rings is achieved, with the result...
A waveguide filter having a stepped transformer area on the input and/or output sides, with at least one band-stop filter composed of geometrically closely spaced stop elements integrated into this stepped transformer area. These features make it possible to build waveguide filters with a high ...
In-Line Pure -Plane Waveguide Band-Stop Filter With Wide Spurious-Free Response A new compact pure ${rm E}$-plane waveguide structure is proposed for coupling band-rejection cavities to the main rectangular waveguide in bandstop in-lin... JR Montejo-Garai,JA Ruiz-Cruz,JM Rebollar,... - ...
The invention relates to a waveguide filter, comprising a tapped transformer area (1, 3) on the input and/or output side, with at least one integrated band-stop filter (4, 5) consisting of successive geometrically compact blocking elements (41, 42, 43; 51, 52, 53) in said tapped transf...