[原创]查了一些同轴电缆不知道对大家有帮助嘛？

whjhzpylover

<p><table bordercolor="#000000" cellspacing="0" cellpadding="0" border="1"><tbody><tr><td width="30" rowspan="6"><p align="center">结构尺寸</p></td><td width="132" colspan="2"><p align="center">内导体直径mm</p></td><td width="143"><p align="center">1.14</p></td><td width="134"><p align="center">1.83</p></td><td width="139"><p align="center">2.65</p></td></tr><tr><td width="132" colspan="2"><p align="center">绝缘直径mm</p></td><td width="143"><p align="center">3.0</p></td><td width="134"><p align="center">4.8</p></td><td width="139"><p align="center">7.3</p></td></tr><tr><td width="132" colspan="2"><p align="center">外导体直径mm</p></td><td width="143"><p align="center">3.5</p></td><td width="134"><p align="center">5.3</p></td><td width="139"><p align="center">7.8</p></td></tr><tr><td width="132" colspan="2"><p align="center">护套外径mm</p></td><td width="143"><p align="center">5.0</p></td><td width="134"><p align="center">7.3</p></td><td width="139"><p align="center">10.5</p></td></tr><tr><td width="132" colspan="2"><p align="center">电缆重量kg/km</p></td><td width="143"><p align="center">50</p></td><td width="134"><p align="center">90</p></td><td width="139"><p align="center">209</p></td></tr><tr><td width="132" colspan="2"><p align="center">最小弯曲半径mm</p></td><td width="143"><p align="center">25</p></td><td width="134"><p align="center">73</p></td><td width="139"><p align="center">105</p></td></tr><tr><td width="30" rowspan="14"><p align="center">电器特性</p></td><td width="132" colspan="2"><p align="center">特性阻抗（Ω）</p></td><td width="143"><p align="center">50?.5</p></td><td width="134"><p align="center">50?</p></td><td width="139"><p align="center">50?.5</p></td></tr><tr><td width="132" colspan="2"><p align="center">速比</p></td><td width="143"><p align="center">0.78</p></td><td width="134"><p align="center">0.79</p></td><td width="139"><p align="center">0.79</p></td></tr><tr><td width="132" colspan="2"><p align="center">最高使用频（GHz）</p></td><td width="143"><p align="center">18</p></td><td width="134"><p align="center">18</p></td><td width="139"><p align="center">15</p></td></tr><tr><td width="132" colspan="2"><p align="center">电容（pF/M）</p></td><td width="143"><p align="center">85</p></td><td width="134"><p align="center">84</p></td><td width="139"><p align="center">84</p></td></tr><tr><td width="132" colspan="2"><p align="center">工频试验电压（kV）</p></td><td width="143"><p align="center">0.6</p></td><td width="134"><p align="center">1</p></td><td width="139"><p align="center">2</p></td></tr><tr><td width="132" colspan="2"><p align="center">脉冲峰值功（KW）</p></td><td width="143"><p align="center">－</p></td><td width="134"><p align="center">4.3</p></td><td width="139"><p align="center">9.7</p></td></tr><tr><td width="132" colspan="2"><p align="center">绝缘电阻MΩ.Km</p></td><td width="143"><p align="center">500以上</p></td><td width="134"><p align="center">1000以上</p></td><td width="139"><p align="center">5000以上</p></td></tr><tr><td width="75" rowspan="6"><p align="center">衰减dB/M</p></td><td width="57"><p align="center">1GHz</p></td><td width="143"><p align="center">0.49</p></td><td width="134"><p align="center">0.34</p></td><td width="139"><p align="center">0.21</p></td></tr><tr><td width="57"><p align="center">3GHz</p></td><td width="143"><p align="center">0.88</p></td><td width="134"><p align="center">0.61</p></td><td width="139"><p align="center">0.392</p></td></tr><tr><td width="57"><p align="center">6GHz</p></td><td width="143"><p align="center">1.28</p></td><td width="134"><p align="center">0.90</p></td><td width="139"><p align="center">0.59</p></td></tr><tr><td width="57"><p align="center">10GHz</p></td><td width="143"><p align="center">1.70</p></td><td width="134"><p align="center">1.30</p></td><td width="139"><p align="center">0.87</p></td></tr><tr><td width="57"><p align="center">16GHz</p></td><td width="143"><p align="center">2.23</p></td><td width="134"><p align="center">1.72</p></td><td width="139"><p align="center">1.134（15GHz）</p></td></tr><tr><td width="57"><p align="center">18GHz</p></td><td width="143"><p align="center">2.39</p></td><td width="134"><p align="center">1.86</p></td><td width="139"><p align="center">－</p></td></tr><tr><td width="132" colspan="2"><p align="center">平均功率</p></td><td width="143"><p align="center">－</p></td><td width="134"><p align="center">140（16GHz）</p></td><td width="139"><p align="center">175（15GHz）</p></td></tr></tbody></table></p><table bordercolor="#000000" cellspacing="0" cellpadding="0" border="1"><tbody><tr><td width="91" rowspan="2"><p align="center">型号</p></td><td width="64" rowspan="2"><p align="center">美军标</p></td><td width="73" rowspan="2"><p align="center">内导体</p><p align="center">根数/直径mm</p></td><td width="74" rowspan="2"><p align="center">标称绝缘外径</p><p align="center">mm</p></td><td width="76" rowspan="2"><p align="center">标称电缆外径</p><p align="center">mm</p></td><td width="54" rowspan="2"><p align="center">标称特性阻抗Ω</p></td><td colspan="2"><p align="center">衰减常数≤dB/m</p></td><td width="58" rowspan="2"><p align="center">试验电压KV</p></td><td width="71" rowspan="2"><p align="center">计算重量kg/km</p></td></tr><tr><td width="62"><p align="center">200MHZ</p></td><td width="42"><p align="center">3000MHZ</p></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-50-0.4-1.htm" target="_blank">SFF-50-0.4</a></td><td width="64" height="25"><div align="center"><p></p></div></td><td height="25"><div align="center">1/0.15</div></td><td height="25"><div align="center">0.41</div></td><td height="25"><div align="center">0.95</div></td><td width="54" rowspan="15"><p align="center">50</p><div align="center"></div><div align="center"></div></td><td height="25"><div align="center">——</div></td><td height="25"><div align="center">——</div></td><td height="25"><div align="center">0.8</div></td><td height="25"><div align="center">——</div></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-50-0.6-1.htm" target="_blank">SFF-50-0.6</a></td><td height="25"><div align="center"><p></p></div></td><td height="25"><div align="center">7/0.08</div></td><td height="25"><div align="center">0.61</div></td><td height="25"><div align="center">1.50</div></td><td height="25"><div align="center">——</div></td><td height="25"><div align="center">——</div></td><td height="25"><div align="center">1.0</div></td><td height="25"><div align="center">——</div></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-1-1.htm" target="_blank">SFF-50-1</a></p></td><td width="64" height="25"><p align="center">RG178</p></td><td width="73" height="25"><p align="center">7/0.10</p></td><td width="74" height="25"><p align="center">0.87</p></td><td width="76" height="25"><p align="center">1.80</p></td><td width="62" height="25"><p align="center">0.85</p></td><td width="42" height="25"><p align="center">3.4</p></td><td width="58" height="25"><p align="center">1.2</p></td><td width="71" height="25"><p align="center">7.51</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-1.5-1.htm" target="_blank">SFF-50-1.5-1</a></p></td><td width="64" height="25"><p align="center">RG316</p></td><td width="73" height="25"><p align="center">7/0.18</p></td><td width="74" height="25"><p align="center">1.5</p></td><td width="76" height="25"><p align="center">2.55</p></td><td width="62" height="25"><p align="center">0.50</p></td><td width="42" height="25"><p align="center">2.0</p></td><td width="58" height="25"><p align="center">2.0</p></td><td width="71" height="25"><p align="center">16.0</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-1.5-2.htm" target="_blank">SFF-50-1.5-2</a></p></td><td width="64" height="25"><p align="center">RG316D</p></td><td width="73" height="25"><p align="center">7/0.18</p></td><td width="74" height="25"><p align="center">1.5</p></td><td width="76" height="25"><p align="center">3.2</p></td><td width="62" height="25"><p align="center">0.50</p></td><td width="42" height="25"><p align="center">2.0</p></td><td width="58" height="25"><p align="center">2.0</p></td><td width="71" height="25"><p align="center">28.0</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-2-1.htm" target="_blank">SFF-50-2-1</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/0.73</p></td><td width="74" height="25"><p align="center">2.2</p></td><td width="76" height="25"><p align="center">3.3</p></td><td width="62" height="25"><p align="center">0.31</p></td><td width="42" height="25"><p align="center">1.27</p></td><td width="58" height="25"><p align="center">3.0</p></td><td width="71" height="25"><p align="center">26.3</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-2-2.htm" target="_blank">SFF-50-2-2</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/0.73</p></td><td width="74" height="25"><p align="center">2.2</p></td><td width="76" height="25"><p align="center">4.0</p></td><td width="62" height="25"><p align="center">0.31</p></td><td width="42" height="25"><p align="center">1.27</p></td><td width="58" height="25"><p align="center">3.0</p></td><td width="71" height="25"><p align="center">44.4</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-3-1.htm" target="_blank">SFF-50-3-1</a></p></td><td width="64" height="25"><p align="center">RG303</p></td><td width="73" height="25"><p align="center">1/0.93</p></td><td width="74" height="25"><p align="center">3</p></td><td width="76" height="25"><p align="center">4.5</p></td><td width="62" height="25"><p align="center">0.23</p></td><td width="42" height="25"><p align="center">0.95</p></td><td width="58" height="25"><p align="center">4.2</p></td><td width="71" height="25"><p align="center">50.4</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-3-2.htm" target="_blank">SFF-50-3-2</a></p></td><td width="64" height="25"><p align="center">RG142</p></td><td width="73" height="25"><p align="center">1/0.93</p></td><td width="74" height="25"><p align="center">3</p></td><td width="76" height="25"><p align="center">5.5</p></td><td width="62" height="25"><p align="center">0.23</p></td><td width="42" height="25"><p align="center">0.95</p></td><td width="58" height="25"><p align="center">4.2</p></td><td width="71" height="25"><p align="center">79.4</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-5-1.htm" target="_blank">SFF-50-5-1</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/1.48</p></td><td width="74" height="25"><p align="center">4.6</p></td><td width="76" height="25"><p align="center">6.4</p></td><td width="62" height="25"><p align="center">0.15</p></td><td width="42" height="25"><p align="center">0.67</p></td><td width="58" height="25"><p align="center">6.5</p></td><td width="71" height="25"><p align="center">86.9</p></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-50-5-2.htm" target="_blank">SFF-50-5-2</a></td><td height="25">
                                </td><td height="25"><div align="center">1/1.48</div></td><td height="25"><div align="center">4.6</div></td><td height="25"><div align="center">7.11</div></td><td height="25"><div align="center">0.15</div></td><td height="25"><div align="center">0.67</div></td><td height="25"><div align="center">6.5</div></td><td height="25"><div align="center">——</div></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-50-7-1.htm" target="_blank">SFF-50-7-1</a></td><td height="25">
                                </td><td height="25"><div align="center">7/0.82</div></td><td height="25"><div align="center">7.25</div></td><td height="25"><div align="center">9.20</div></td><td height="25"><div align="center">0.12</div></td><td height="25"><div align="center">0.52</div></td><td height="25"><div align="center">10.0</div></td><td height="25"><div align="center">——</div></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-50-7-2.htm" target="_blank">SFF-50-7-2</a></p></td><td width="64" height="25"><p align="center">RG393</p></td><td width="73" height="25"><p align="center">7/0.82</p></td><td width="74" height="25"><p align="center">7.25</p></td><td width="76" height="25"><p align="center">10.2</p></td><td width="62" height="25"><p align="center">0.12</p></td><td width="42" height="25"><p align="center">0.52</p></td><td width="58" height="25"><p align="center">10.0</p></td><td width="71" height="25"><p align="center">235.0</p></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-50-9-1.htm" target="_blank">SFF-50-9-1</a></td><td height="25">
                                </td><td height="25"><div align="center">7/1.0</div></td><td height="25"><div align="center">9.0</div></td><td height="25"><div align="center">11</div></td><td height="25"><div align="center">0.09</div></td><td height="25"><div align="center">0.36</div></td><td height="25"><div align="center">12</div></td><td height="25"><div align="center">——</div></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-50-9-2.htm" target="_blank">SFF-50-9-2</a></td><td height="25">
                                </td><td height="25"><div align="center">7/1.0</div></td><td height="25"><div align="center">9.0</div></td><td height="25"><div align="center">12.4</div></td><td height="25"><div align="center">0.09</div></td><td height="25"><div align="center">0.36</div></td><td height="25"><div align="center">12</div></td><td height="25"><div align="center">——</div></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-1.htm" target="_blank">SFF-75-1</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/0.17</p></td><td width="74" height="25"><p align="center">0.87</p></td><td width="76" height="25"><p align="center">1.8</p></td><td width="54" rowspan="10"><p align="center">75</p><p align="center"></p></td><td width="62" height="25"><p align="center">0.74</p></td><td width="42" height="25"><p align="center">2.9</p></td><td width="58" height="25"><p align="center">1.0</p></td><td width="71" height="25"><p align="center">7.28</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-1.5-1.htm" target="_blank">SFF-75-1.5-1</a></p></td><td width="64" height="25"><p align="center">RG179</p></td><td width="73" height="25"><p align="center">7/0.10</p></td><td width="74" height="25"><p align="center">1.5</p></td><td width="76" height="25"><p align="center">2.55</p></td><td width="62" height="25"><p align="center">0.50</p></td><td width="42" height="25"><p align="center">2.0</p></td><td width="58" height="25"><p align="center">1.8</p></td><td width="71" height="25"><p align="center">15.2</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-1.5-2.htm" target="_blank">SFF-75-1.5-2</a></p></td><td width="64" height="25"><p align="center">RG179D</p></td><td width="73" height="25"><p align="center">7/0.10</p></td><td width="74" height="25"><p align="center">1.5</p></td><td width="76" height="25"><p align="center">3.2</p></td><td width="62" height="25"><p align="center">0.50</p></td><td width="42" height="25"><p align="center">2.0</p></td><td width="58" height="25"><p align="center">1.8</p></td><td width="71" height="25"><p align="center">27.2</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-2-1.htm" target="_blank">SFF-75-2-1</a></p></td><td height="25">
                                </td><td height="25"><div align="center">1/0.41</div></td><td height="25"><div align="center">2.20</div></td><td height="25"><div align="center">3.2</div></td><td height="25"><div align="center">0.40</div></td><td height="25"><div align="center">1.5</div></td><td height="25"><div align="center">1.3</div></td><td height="25"><div align="center">——</div></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-2-2.htm" target="_blank">SFF-75-2-2</a></p></td><td height="25">
                                </td><td height="25"><div align="center">1/0.41</div></td><td height="25"><div align="center">2.20</div></td><td height="25"><div align="center">3.65</div></td><td height="25"><div align="center">0.40</div></td><td height="25"><div align="center">1.5</div></td><td height="25"><div align="center">1.3</div></td><td height="25"><div align="center">——</div></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-3-1.htm" target="_blank">SFF-75-3-1</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/0.55</p></td><td width="74" height="25"><p align="center">3</p></td><td width="76" height="25"><p align="center">4.5</p></td><td width="62" height="25"><p align="center">0.23</p></td><td width="42" height="25"><p align="center">0.95</p></td><td width="58" height="25"><p align="center">3.6</p></td><td width="71" height="25"><p align="center">47.4</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-3-2.htm" target="_blank">SFF-75-3-2</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/0.55</p></td><td width="74" height="25"><p align="center">3</p></td><td width="76" height="25"><p align="center">5.5</p></td><td width="62" height="25"><p align="center">0.23</p></td><td width="42" height="25"><p align="center">0.95</p></td><td width="58" height="25"><p align="center">3.6</p></td><td width="71" height="25"><p align="center">76.5</p></td></tr><tr><td width="91" height="25"><p><a href="http://www.shbing.com/sff-75-5-1.htm" target="_blank">SFF-75-5-1</a></p></td><td width="64" height="25"><p align="center"></p></td><td width="73" height="25"><p align="center">1/0.82</p></td><td width="74" height="25"><p align="center">4.6</p></td><td width="76" height="25"><p align="center">6.0</p></td><td width="62" height="25"><p align="center">0.15</p></td><td width="42" height="25"><p align="center">0.66</p></td><td width="58" height="25"><p align="center">5.5</p></td><td width="71" height="25"><p align="center">88.5</p></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-75-5-2.htm" target="_blank">SFF-75-5-2</a></td><td height="25">
                                </td><td height="25"><div align="center">1/0.82</div></td><td height="25"><div align="center">4.6</div></td><td height="25"><div align="center">6.6</div></td><td height="25"><div align="center">0.15</div></td><td height="25"><div align="center">0.66</div></td><td height="25"><div align="center">5.5</div></td><td height="25"><div align="center">——</div></td></tr><tr><td height="25"><a href="http://www.shbing.com/sff-75-17-1.htm" target="_blank">SFF-75-17-1</a></td><td height="25">
                                </td><td height="25"><div align="center">1/2.95</div></td><td height="25"><div align="center">17.3</div></td><td height="25"><div align="center">21</div></td><td height="25"><div align="center">0.05</div></td><td height="25"><div align="center">0.30</div></td><td height="25"><div align="center">8.0</div></td><td height="25"><div align="center">——</div></td></tr><tr><td colspan="10" height="25"><p>使用条件：相对湿度：40℃时＜98%绝缘电阻：≤ 5000MΩ.km</p></td></tr></tbody></table>[em07]

caijian0714

<p>謝謝whjhzpylover兄弟，以後再也不用为了选线头疼了！<br/></p>

whjhzpylover

我正为选线头疼啊，好像损耗越低线越粗啊。今天公司到杭州电子市场出差可以顺便去看看啦哈哈[em05]

jie3303

最好上说明，和图，这样我这样的新手还是不太懂，我选线时也是头大，而且有的地方不一定能买到线。福州这边只有75-3 75-5<br/>

jskxx

<p>謝謝<br/></p>

xinven

尽管不懂，不过还是要顶一下！

别人说那个50欧的馈线，是相对于表中的哪一数据啊？

apero110

好好学习天天向上

lyfjyq

SFF-50-3-1
RG303
1/0.93
3
4.5

heisuheisu

看来线材上的讲究不是很大，75Ω的同50Ω的每米也就相差0.3dbi左右，只要你的线不是10多米长的那种，相差不大。10米相差3dbi左右。

LeeTien

感谢斑竹，为这事儿愁了好长一段了

platch

我的线上写着 50-FB，是那种啊。

yqb28

好好学习天天向上