一个可调谐天线是一个天线，可以改变一个广泛有效的频段接收共振频率。
A tuneable antenna is an antenna that can change resonance frequencies for effective reception of a wide range frequency bands.
共振频率可以改变被动的加载与调谐组件，它可与天线单元和接地层放置天线。
Resonant frequency can be changed by loading the antenna with a reactive tuning component, which can be placed between the antenna element and the ground plane.
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