But it's really hard to achieve rapid tuning, wide free spectrum range (FSR) and low insert loss simultaneously.
由于受到工艺的限制，过去很难同时实现滤波器的快速调谐、很宽的动态范围以及很低的损耗等特性。
This coaxial joint component combines two joints working on the same frequency. It is characterized by wide band, small VSWR and low insert loss.
这种交连组合采用同轴结构，将两路工作频率相同的交连有机地结合在一起，具有宽带、小驻波、低损耗特点，且体积小、重量轻。
Of all sorts of phase shifters tuned by electricity, the ferrite phase shifters are much widely used, because of their advantages of high reliability and low insert loss.
在电调移相器中，铁氧体移相器以其高可靠性和低损耗等优点得到了极大的应用。
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