波导是一种低损耗的传输线。

Waveguide is a kind of low loss transmission line.

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高电压输电降低了功率损耗，并许可运用更小的导体传输线。

Transmitting electricity at high voltages reduces the power loss and permits the use of smaller conductors in the transmission line.

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相对于这些传统的传输线，SIW等基片集成波导具有低损耗、品质因数高、尺寸小等众多优点。

Compared with these traditional transmission lines, SIW have these favorable characteristics of low loss, high Q value, and small size.

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