Low noise, fast, quad universal filter building block. 噪音低,速度快,四普及过滤积木。
Low noise amplifier ( LNA ) serves as the key block of the wireless radio frequency receiver, its noise performance directly influences the whole RF receiver. 低噪声放大器(LNA)作为无线射频接收系统前端的关键模块,其噪声性能直接影响着整个系统的噪声性能。
Low vibration and noise track structure has three types : elastic fastener system, elastic supporting block and floating slab. 减振降噪型轨道结构分三类:弹性扣件、弹性支承块和浮置板。