The design method of an active SAW filter module with low frequency and high stopband rejection is introduced in this paper.

Equation for stopband transmission zeros of such lowpass filter is derived from a new equivalent circuit model.

本文基于新的等效电路模型，推导出了此类低通滤波器的阻带传输零点位置。

Factors affecting the stopband characteristic and applications of the structure are also studied.

并研究了影响阻带特性的因素及这种结构的应用。

For incident waves, the proposed structure has narrow stopband and wide pass band.

对于入射电磁波，该结构与传统方环结构相比具有窄阻带和宽通带特性。

Through HFSS simulation software test, simulation results show filters has a wide-stopband.

通过HFSS仿真软件测试，结果显示这种带阻滤波器具有较宽的阻带。

Measurement result shows that this novel EBG structure has good stopband characteristic in a wide band.

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。

and the filter for filtering the intermediate frequency signal with the passband and the stopband.

滤波器依据其通带和阻带来过滤中频信号。

A novel compact electromagnetic bandgap structure is presented, which provides ultra-wide stopband.

提出了一种新颖的小型超宽阻带电磁带隙结构。

It is used in the microwave integrated circuits to achieve size reduction and rejection of ripples in stopband .

用在微波集成电路中，可以减小电路尺寸和抑制阻带内波纹。

Therefore, there is a perfect compromise between attenuation in stopband and group delay or loss variation in passband.

因此，它在带外衰减与带内幅度特性和带内群时延特性之间有了一个较好的折中。

Chelsea owner Roman Abramovich faces a player backlash if he dares step inside the dressing room.

假如阿布拉莫维奇介入球队更衣室,这位切尔西的老板将面临球员们的反击.

Oh, yes. Step inside, will you?

噢, 是的, 请进来好 吗 ?

Will you step inside?

请进来.

I step inside and relax into the calming quiet.

我跨步里面和放松入镇定的沉寂.

Mother invited the callers to step inside to have a talk.

母亲请客人进屋里一叙.

You step inside a bar to a sober silence.

你进入一家酒吧,清醒地沉默着.

Step inside. Let's get something to eat.

进来吧! 咱们弄点东西吃.

For the sake of the children he is maintaining a friendly relation with his ex-wife .

由于孩子的缘故,他与 前妻 保持着友好关系.

Our object is to further strengthen friendly relation between the two countries.

我们的目标是进一步加强两国之间的友好关系.

In South China, Holotrichia ovata Chang is one species which most badly destroy turf grass.

卵圆齿爪鳃金龟HolotrichiaovataChang在我国南方是严重为害草坪的重要害虫之一.

Blooms containing even one species of toxic cyanobacteria will be poisonous and potentially dangerous.

花开含有毒藻种之一,甚至会有毒潜在危险.