2端口测量S参数电缆有推荐吗

亲爱的ggamache如果PCB变压器是单端接地设备，那么只需将网络分析仪的端口1和端口2连接到DUT连接器即可。
SMA连接器和同轴电缆足以进行30MHz-100MHz的测量。



     以下为原文

  Dear ggamache 

If the PCB transformer is single-end grounded device, then simply connect port 1 and port 2 of the network analyzer to DUT connectors.
SMA connector and coaxial cable will be enough for 30MHz-100MHz measurement.

takehio，感谢您的快速反应。
所以我相信我的步骤如下。
你能让我知道你的想法吗？
1.获取N型 - > SMA电缆。
2.获取N型校准套件（目前有7mm套件）3。执行完整的2端口校准（每个端口打开/短路/负载，然后通过两个端口之间）4。执行开路/短路/负载补偿
消除电缆的影响5.测量双端口网络的S11，S12，S22，S21 6.转换为Z参数。
谢谢



     以下为原文

  takeshio, 

Thanks for the quick response.

So I believe my steps would be as follows.  Could you let me know what you think?

1. Acquire N-type -> SMA cables.  
2. Acquire N-type cal kit (currently have the 7mm kit)
3. Perform full 2-port calibration (open/short/load on each port, and then thru between the two) 
4. Perform open/short/load compensation to remove effects of cables
5. Measure S11, S12, S22, S21 of two-port network
6. Convert to Z-parameters.

Thanks

亲爱的ggamache首先，我假设您的DUT（PCB变压器是2端口设备，并有2个SMA连接器。我认为您的步骤将运行良好，您还可以在SMA电缆末端执行校准，以获得更稳定的测量。
步骤：1。获取N型 - > SMA电缆。（N至SMA适配器和SMA电缆正常）2。获取SMA型校准套件3.在SMA的末端（DUT侧）执行完整的2端口校准
电缆。（无需执行开路/短路/负载补偿）4。将SMA电缆连接到DUT SMA连接器5.测量双端口网络的S11，S12，S22，S21 6.转换为Z参数。至于校准套件
，有各种产品和RF电子校准模块以及机械校准套件.http：//www.home.agilent.com/en/pc-1000002625%3Aepsg%3Apgr/mechanical-and-electronic-calibration
？-kits PM = SC＆安培; NID = -536902695.0＆安培; CC = US＆安培; LC =主机



     以下为原文

  Dear ggamache 

First of all, I assume that your DUT(PCB transformer is 2 port device and has 2 SMA connectors.
I think your steps will work well, and you also cal perform calibration at the end of SMA cable to get more stable measurement.

Steps:

1. Acquire N-type -> SMA cables.  (N to SMA adapter and SMA cable is OK) 
2. Acquire SMA-type type cal kit
3. Perform full 2-port calibration at the end(DUT side) of SMA cable. (No need to perform open/short/load compensation)
4. Connect SMA cable to DUT SMA connectors
5. Measure S11, S12, S22, S21 of two-port network
6. Convert to Z-parameters.

As for calibration kit, there are variety of product and RF Electronic Calibration Module will be available as well as Mechanical Calibration Kit.
http://www.home.agilent.com/en/pc-1000002625%3Aepsg%3Apgr/mechanical-and-electronic-calibration-kits?pm=SC&nid=-536902695.0&cc=US&lc=eng

takehio，再次感谢您的回复。
我认为除校准部分外，您的所有建议都有意义。
如何在SMA电缆末端校准？
我最初的建议是错的 - 后来我意识到补偿是1端口Z测量系统的下游，并且不能用于2端口s-param测量。
我修改了后处理的方法，并从测量的S参数中去除了电缆和连接器的效果。
你在最后简单校准的建议会使这更容易，但我怎么能这样做？
我计划获得标准的机械N型校准套件（http://www.home.agilent.com/en/pd-1000000586%3Aepsg%3Apro-pn-85036E/economy-mechanical-calibration-kit-dc-to
-3-ghz-type-n-75-ohm？nid = -536902695.536879536＆amp; cc = US＆amp; lc = eng，除了50欧姆），然后，就像我说的那样，从那里去嵌入。
再次感谢。



     以下为原文

  takeshio,

Thank you again for the response.

I think all of your suggestions make sense except for the calibration part.  How would I calibrate at the end of the SMA cable?  I was wrong with my initial suggestion - I realized later that compensation is downstream from the 1-port Z-measurement system and would not be able to use it with 2-port s-param measurements.  I modified my approach to post-process and de-embed the cable and connectors effects from the measured S-parameters.

Your suggestion of simply calibrating at the end would make this a lot easier, but how could I do that?  I planned on getting the standard mechanical N-type calibration kit (http://www.home.agilent.com/en/pd-1000000586%3Aepsg%3Apro-pn-85036E/economy-mechanical-calibration-kit-dc-to-3-ghz-type-n-75-ohm?nid=-536902695.536879536&cc=US&lc=eng, except 50 ohm), and then, like I said, de-embedding from there.

Thanks again.

亲爱的ggamache你想用75欧姆校准套件和75欧姆N型同轴电缆以及E5061B选件237测量DUT吗？
如果不测量50欧姆系统阻抗的DUT，则SMA电缆不适用（阻抗为50欧姆且不匹配）。
由于85036E仅包括MALE校准装置（开路，短路和负载），因此需要75欧姆N型母对母适配器在电缆末端进行校准，如下图所示。
如果使用85036B，则可以省略75ohmN型母对母适配器，因为85036B包括MALE和FEMALE校准设备。
（校准连接）[E5061B opt 237] - [75欧姆N型电缆] - [75ohmN型母对母适配器] - [85036E校准设备]（DUT测量连接）[E5061B opt 237] - [
75欧姆N型电缆] - [75欧姆N型母对母适配器] - [75欧姆N型公对XXX适配器] - [带有XXX连接器的DUT]在这种情况下，你仍然需要去嵌入去除
（75欧姆N型公对XXX）适配器的效果，但您可以省略电缆解嵌，并将获得更准确的测量结果。



     以下为原文

  Dear ggamache 

Do you want to measure the DUT with 75ohm cal kit and 75 ohm N type coaxial cables as well as E5061B option 237?
If you don't measure the DUT in 50 ohm system impedance, SMA cable is not suitable (this is 50ohm impedance and has mismatch).

As 85036E only includes MALE calibration devies(open, short and load), you need 75ohm N type  female-to-female adapter  to perform calibration at the end of cable as below figure. If you use 85036B, you can omit 75ohmN type  female to female adapter because 85036B includes both MALE and FEMALE calibration devices.

(Connection for calibration)
[E5061B opt 237] -- [75 ohm N type cable] -- [75ohmN type  female to female adapter] -- [85036E cal devices]

(Connection for DUT measurement)
[E5061B opt 237] -- [75 ohm N type cable] -- [75ohm N type female to female adapter] -- [75ohm N type male to XXX adapter] -- [DUT with XXX connector]

  
In this case you still need to do  de-embedding to remove of the effect of (75ohm N type male to XXX ) adapter, but you can omit cable deembedding and will get more accurate measurement result.

哦 - 我明白你在说什么。
通常，您建议在N型电缆的末端而不是网络分析仪的连接器处进行校准。
这就说得通了。
很抱歉让您感到困惑 - 我们有E5061B-135（50欧姆阻抗）。
我意外地连接了75欧姆的校准套件 - 所以我们绝对可以使用SMA电缆。
在这种情况下，我可以这样做：校准：E50161B-135 - > 50欧姆N型电缆 - > 50欧姆母对母N型适配器 - > 85036E校准设备测量：E50161B-135 - > 50欧姆N型电缆 - >
50欧姆母对母N型适配器 - > 50欧姆N型至SMA适配器 - >带SMA接头的DUT。
当然，我需要将N型嵌入到SMA适配器中。
然后，如果我购买了85036B校准套件，我就不需要50欧姆母头 - 母N型适配器。
听起来不错？



     以下为原文

  Oh - I see what you are saying.  In general you are suggesting to calibrate at the end of the N-Type cable instead of at the connector at the network analyzer.  That makes sense.

Sorry to confuse you - we have the E5061B-135 (50 ohm impedance).  I linked the 75 ohm cal kit by accident - so we can definitely still use SMA cable.  In that case, I could do:

Calibration:
E50161B-135 -> 50 ohm N type cable -> 50 ohm female to female N-type adapter -> 85036E cal devices

Measurement:
E50161B-135 -> 50 ohm N type cable -> 50 ohm female to female N-type adapter -> 50 ohm N type to SMA adapter -> DUT with SMA connector.

Of course, I would need to de-embed the N type to SMA adapater.

And then, if I bought the 85036B cal kit I would not need the 50 ohm female - female N type adapter.

Sound correct?

亲爱的ggamache嗯，现在很清楚了，谢谢。
由于85036B和85036E校准套件均为75欧姆系统阻抗，我建议使用85032E，程序如下：校准：E50161B-135 - > 50欧姆N型电缆 - > 50欧姆母对母N型适配器 - > 85032E cal
器件尺寸：E50161B-135 - > 50欧姆N型电缆 - > 50欧姆母对母N型适配器 - > 50欧姆N型至SMA适配器 - >带SMA连接器的DUT。
（需要将N型嵌入SMA适配器）您可以选择如果您购买了85033E（标准机械校准套件，DC至9 GHz，3.5 mm）或85093C（RF电子校准模块，300 kHz至9 GHz，
3.5毫米，2端口），您不需要50欧姆母 - 母N型适配器，您可以在SMA电缆端平面校准如下，校准：E50161B-135 - > 50欧姆N型到SMA适配器
- > 50欧姆SMA电缆 - > 85033E / 85093C校准设备测量：E50161B-135 - > 50欧姆N型到SMA适配器 - > 50欧姆SMA电缆 - >带SMA连接器的DUT。
c.f.）Calibrtion套件适合您的要求。
http://www.home.agilent.com/en/pc-1000000298%3Aepsg%3Apgr/mechanical-and-electronic-calibration-kits?pm=CM&nid=-536902695.0&cc=US&lc=eng&
OIDL = 1000004479％3Aepsg％3Apro％3B-536902695％2C1000000583％3Aepsg％3Apro％3B-536902695％2C1000003537％3Aepsg％3Apro％3B-536902695％2C1000003542％3Aepsg％3Apro％3B-536902695



     以下为原文

  Dear ggamache 

Well, now it is clear, thank you.

As both 85036B and 85036E cal kit is for 75ohm system impedance, I reccomend to use 85032E with the procedure below,


Calibration:
E50161B-135 -> 50 ohm N type cable -> 50 ohm female to female N-type adapter -> 85032E cal devices

Measurement:
E50161B-135 -> 50 ohm N type cable -> 50 ohm female to female N-type adapter -> 50 ohm N type to SMA adapter -> DUT with SMA connector.
(De-embedding the N type to SMA adapater will be required)

You can select 

If you bought the 85033E(Standard Mechanical Calibration Kit, DC to 9 GHz, 3.5 mm) or 85093C(RF Electronic Calibration Module, 300 kHz to 9 GHz, 3.5 mm, 2-port), you don't need the 50 ohm female - female N type adapter and you can calibrate at the plane of SMA cable end as follows,

Calibration:
E50161B-135 -> 50 ohm N type to SMA adapter -> 50 ohm SMA cable -> 85033E / 85093C cal devices

Measurement:
E50161B-135 -> 50 ohm N type to SMA adapter -> 50 ohm SMA cable -> DUT with SMA connector.


c.f.) Calibrtion kits that will be suitable for your requirement.
http://www.home.agilent.com/en/pc-1000000298%3Aepsg%3Apgr/mechanical-and-electronic-calibration-kits?pm=CM&nid=-536902695.0&cc=US&lc=eng&oidL=1000004479%3Aepsg%3Apro%3B-536902695%2C1000000583%3Aepsg%3Apro%3B-536902695%2C1000003537%3Aepsg%3Apro%3B-536902695%2C1000003542%3Aepsg%3Apro%3B-536902695