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波导的种类
2022-06-30 15:33:00 【Micro_ET】
波导是一种主要利用空气为介质的传输器件,空气的介质损耗几乎可以忽略,所以波导的损耗主要来自导体自身的损耗,常用的波导有矩形波导、圆波导、椭圆波导和脊型波导等,这些波导的统一特点是属于规则金属波导,波导的使用场合大多在比较高的频段,比如10G以上的频段,特别是毫米波频段,这主要是因为其尺寸与所工作的波长成正比,波长越小,波导的体积也会越小,但由于波导的损耗相对微带线等形式,其插损特别小,因此在一些大功率的场合,除了在高频段使用外,也在不受体积限制的一些产品上可以应用在百兆赫兹频率上,由于波导的体积根据波长确定,一旦设计完成,即为定型,所以,在实际的使用选择中,可根据工作频率和用途来选择标准的波导产品。仅供参考!
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