本文简述了光纤延迟线在无线电电子设备中的应用概况，分析了几种典型的光纤延迟线及其基本特性。
Applications of optical fiber delay lines in radio electronic equipment are described. A number of typical optical fiber delay lines and their principal properties are analysed.
梳状换能器可看成若干叉指单元电端并联，声端首尾串联而成的网络，采用单向结构可降低采用这种结构的声表面波延迟线的损耗。
The comb transducer can be considered as the network of the parallel connection of some units of IDT electrical ports and the series connection of their acoustic ports.
梳状换能器可看成若干叉指单元电端并联，声端首尾串联而成的网络，采用单向结构可降低采用这种结构的声表面波延迟线的损耗。
The comb transducer can be considered as the network of the parallel connection of some units of IDT electrical ports and the series connection of their acoustic ports.
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