例句與造句

1. Two kinds of filters are presented : by transferring the conventional waveguide cavity filter to the siw , a narrow bandstop filter is designed and simulated , get characteristic of narrow - band bandstop filtering . for example , relative bandwidth 1 . 2 % , most attenuation of 48db in band . electromagnetic bandgap ( ebg ) structures present “ forbidden band ” characteristics , siw features high - pass characteristics , so bandpass filters can be composed by combing ebg and siw
   本論文提出了兩種基片集成波導(dǎo)濾波器結(jié)構(gòu):將傳統(tǒng)的腔體濾波器概念運用于基片集成波導(dǎo)結(jié)構(gòu),設(shè)計出了一種窄帶帶阻濾波器,對其進行仿真,得到了窄帶帶阻濾波特性,如相對帶寬為1 . 2 % ,最大衰減為48db 。
2. It's difficult to find waveguide cavity in a sentence. 用waveguide cavity造句挺難的