1) SAW pass band filer
SAW带通滤波器
2) SAW filter
SAW滤波器
1.
Reliability analysis of SAW filter and its test;
SAW滤波器的可靠性分析及其测试研究
2.
The input interdigital transducers (IDTs) in SAW filters are uniformly weighted while the output IDTs have the modified Hamming window structure.
本文提出了一种新技术,可以提高SAW滤波器频响的旁瓣抑制,同传统的标准加权归一化方法相比有三倍的改善。
3.
Taking SAW filter as a network,the optimum performance of the filter with good matching parameters is simulated through calculationAlso the CLMR SAW filter is introduced in detailIn practical,246 MHz SAW IF filter has been used in GSM with an insertion loss of 857 dB (before matching) and 435 dB (after matching) respectivelyThe passband ripple is about 045 d
把声表面波 ( SAW)滤波器作为一个网络 ,测出参数 ,通过计算模拟出其最佳的滤波器性能 ,取得较好的匹配参数 ;同时较详细的介绍了复合纵向耦合谐振型 ( CL MR) SAW滤波器的结构 ,给出了 GSM中频用 2 4 6MHz SAW低损耗滤波器的应用实例 ,未匹配的插入损耗为 8。
3) SAW filter
SAW 滤波器
1.
When SAW filters were designed by the conventional transversal filter method,if the length was not confined,the response of the arbitrary band-pass form could be synthesized.
用传统的横向滤波器的方法设计 SAW 滤波器,若长度不限制,可合成任意带通形状的频响,为降低三次行程信号(TTS),滤波器通常失配,因而插入损耗较大。
4) active surface acoustic wave filter
有源SAW滤波器
5) bandpass filter
带通滤波器
1.
Design of substrate integrated waveguide(SIW) bandpass filters;
基片集成波导带通滤波器的设计
2.
Design of LTCC bandpass filter;
LTCC带通滤波器传输零点设计
3.
Design of offset dielectric post bandpass filter based on substrate integrated waveguide;
偏置介质销钉基片集成波导带通滤波器的设计
6) band-pass filter
带通滤波器
1.
Design of parallel coupled microstrip band-pass filters;
平行耦合微带线结构带通滤波器的设计
2.
Design principle of digital switching capacitor band-pass filter;
数字式开关电容带通滤波器设计原理
3.
Application of switched-capacitor band-pass filter in water supply pipeline net leakage point orientation system;
开关电容带通滤波器在管网泄漏点定位中的应用
补充资料：低通数字滤波
低通数字滤波
影像学术语。数字成像方式中数字图像平滑方式之一。图像数据的统计涨落相当于频谱的高频部分，使用数字滤波器滤掉高频成分，保留图像信息中的低频和中频部分，即可达到平滑的效果。进行低通数字滤波平滑前，要首先用傅立叶变换把图像信息由空间域变换到频域上，即转换为频谱，经过滤波后再用傅立叶逆变换转换为图像信息，这样就可以得到平滑后的图像。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条