介绍了一种改进阻带性能的SIR滤波器。
Introduces a SIR electric filter with improved stopband performance.
提出了一种新颖的小型超宽阻带电磁带隙结构。
A novel compact electromagnetic bandgap structure is presented, which provides ultra-wide stopband.
利用该结构制作的带阻滤波器，阻带窄、衰减陡峭。
Band stop filter made with this structure has narrow gap and steep attenuation.
这种滤波器不仅尺寸大大减小，而且阻带得到了加宽。
The novel filter is not only more compact in size, but also wider stop band.
所设计滤波器的选择性和阻带衰减可预先给定并易于控制。
The filter selectivity and stopband attenuation can be easily specified or controlled.
测量结果显示，新型EBG结构在宽频带内具有良好的阻带特性。
Measurement result shows that this novel EBG structure has good stopband characteristic in a wide band.
本文用该方法拟合了两个已有的电磁阻带结构的特性阻抗和有效介电常数。
In this dissertation, characteristic impedance and effective permittivity of two well-known electromagnetic stop band structures have been fitted by this method.
在本章的最后，采用寄生条带和贴片开槽的方法，实现了天线的双阻带特性。
Finally in this chapter, the parasitical strip and the folded slot have been used to implement the dual band-notched characteristic.
在称重传感器应用中，此阻带抑制性能可有效抑制称重传感器的低频机械振动。
In load cell applications, this stop-band rejection is useful to reject low frequency mechanical vibrations of the load cell.
本文利用三带提升方法构造了一类具有阻带零点抑制的三带双正交复内插子波 。
Utilizing the three-band lifting scheme, the paper designs a novel family of biorthogonal interpolating complex wavelets with stopband zero suppression.
用该算法设计的高阶多通带滤波器，其幅频响应的阻带衰减很大，而通带波动很小。
The high-order multi-band-pass FIR filter designed with this algorithm is featured by big attenuation in stop-band and small ripple in pass-bands.
提供了阻带宽度与各结构、材料参数的关系曲线，为工程设计提供了优选结构的参考数据。
The curves of stop band width vs. geometric and constitutive parameters were provided as the optimal structure data for engineering design.
本文对两个新提出的电磁阻带结构滤波器建立了等效电路，并用该方法优化了相应的参数。
Equivalent circuits of two proposed electromagnetic stop band filters have been developed. And their parameters have been optimized using this method.
阻带零点抑制是比消失矩约束更为严格的设计条件，能够更有效地控制滤波器的阻带特性。
The stopband zero suppression is a stricter design constraint than the vanishing moments, and can more effectively manipulate the stopband characteristics of filters.
本文在频率采样法的基础上提出了具有可控阻带凹陷特性的线性相位FIR滤波器的设计。
Based on the frequency sampling technique, we have proposed a new method for designing linear-phase FIR filters with steerable stopband dips.
从计算机仿真结果可以看出，当滤波器抽头数相同时，IIR滤波器具有更好的通带和阻带特性。
It can be found from the computer emulation that the IIR filter has the better passband and stopband characteristics than FIR filter with the same number of tap-weight.
介绍了一种低频高阻带抑制SAW有源滤波组件的设计方法，并介绍了最新研制的滤波组件的性能。
The design method of an active SAW filter module with low frequency and high stopband rejection is introduced in this paper.
介绍了一种低频高阻带抑制SAW有源滤波组件的设计方法，并介绍了最新研制的滤波组件的性能。
The design method of an active SAW filter module with low frequency and high stopband rejection is introduced in this paper. The performances of the module developed recently are also given.
应用发夹线高低阻抗线设计的椭圆函数滤波器具有体积小、插损低、宽阻带、高陡峭度的显著优点。
The elliptic-function filter using hairpin stepped impedance has such advantages as compact structure, low insertion loss, broad-stopband and high steep.
本实用新型具有大平坦宽度的通带和阻带及高隔离度的同时，还具有低电压和高速的波长调谐等特性。
The utility model has the characteristics of not only flat passband and stopband with large width and high isolation, but also low voltage and high velocity wavelength tuning.
本文介绍适用于窄带滤波器的中心频率衍射补偿方法。实验表明，此方法可以有效地改善滤波器的阻带特性。
It is shown experimentally that a method available for compensating for the diffraction by centre frequency in narrow band filters can effectively improve their stopband characteristics.
在同一个滤波器中同时使用源端负载端耦合和多模腔融合技术，使滤波器的频率选择斜率和阻带性能得到改善。
The slope selectivity and the stopband of the filters are further improved by utilizing a combination of source-load coupling and over-moded cavities in the same filter.
尤其是本文把正则阶作为约束条件之一，从而保证了滤波器通带的平坦性和阻带的快速衰减，并且在阻带滤波器的频谱值非常接近于零。
Especially, regularity as one of the constraints assure the flatness in passband and the high attenuation in stopband, even the value of stopband response is very close to zero.
其次，在阅读大量文献的基础上，总结了目前常见的超宽带阻带产生方法，并且设计了两个具有双阻带特性的微带平面单极超宽带天线。
Base on studying large numbers of references, developments of the UWB planar slot antennas have been summarized, then, two planar UWB antennas with dual stopbands have been designed.
准椭圆函数滤波器的传输零点，可以位于阻带内的任意位置处，这能更加灵活地对滤波器的带外抑制度进行调节，其矩形系数可以做得很高。
The transmission zeros(TZ) of Quasi-elliptic function filter could be placed in any position, so the attenuation out of band is controllable, then a high selection performance could get.
具有杂波抑制特性的带通滤波器不仅可以实现这个功能，同时由于抑制了杂波还可以提高带通滤波器的通带对称性以及高端阻带的衰减特性。
The bandpass filter that has spurious suppression characteristics can solve this problem and it has excellent bandpass symmetry and stopband attenuation characteristics at high frequency.
具有杂波抑制特性的带通滤波器不仅可以实现这个功能，同时由于抑制了杂波还可以提高带通滤波器的通带对称性以及高端阻带的衰减特性。
The bandpass filter that has spurious suppression characteristics can solve this problem and it has excellent bandpass symmetry and stopband attenuation characteristics at high frequency.
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