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SMA接头/接口变体

InfoTech
2015年5月8日 / 445次阅读

文章《SMA接头/接口变体》的特色图片

之前已经有一篇博文介绍SMA接口的基本概念,这篇介绍SMA接口的一些变体。

The SMA connector is typically rated for mode-free operation from DC to 18 GHz, though some proprietary versions are rated to 26.5 GHz. For performance above this, SMA-like connectors are used. These are the 3.5 mm connector, rated to 34 GHz, and the 2.92 mm (also known as 2.9 mm, SMK, or K type), good up to 46 GHz. These connectors keep the same outside thread as the SMA, so they can all be cross-mated, but the precision connector can be easily damaged when mating with low-grade SMA connectors. The precision versions use an air dielectric with appropriately scaled center conductors.

SMA接口通常最大能够支持18GHz的速率,而一些私有的SMA接口可以到26.5GHz。

对于要求速率更高的接口,一般叫作类SMA接口(SMA-like)。有3.5mm的接口,速率可达34GHz,还有2.92mm的接口(也可以说2.9mm,或者SMK接口,或者K type),速率可到46GHz。这些接口的螺纹与传统SMA接口一直,所以他们可以在一起混搭,但是高速率的接口很容易被低速率的接口损坏。高速版本的SMA接口使用空气绝缘,在中心有合适的导体。

Beyond 46 GHz, the 2.4 mm, 1.85 mm and the 1 mm connector exist. These are similar to the SMA connector, but with the geometries incompatibly scaled. These have mode-free operation to 50, 65, and 110 GHz respectively.

对于超过46GHz的SMA接口,有2.4mm和1.85mm,还有1mm的接口存在。他们都与传统SMA接口相似,但是物理尺寸不能兼容。他们的模式无关的频率分别可以达到50GHz,65GHz,和110GHz。

本文链接:http://www.maixj.net/ict/sma-variations-5433
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