[问答]

DIQ和SMC的源功率和增益误差

问答对人有帮助，内容完整，我也想知道答案 0 使用fw 10.20。在做SMC和DIQ cals之后，我想出了增益和端口功率方面的一些错误。附加的.csa和.png文件是我正在尝试测量的子集，手动完成设置，因此我的程序没有进入图片。如果您查看png文件，则使用一个CalAll完成窗口1和窗口3，使用标准SMC校准向导完成窗口2。我在校准和测量期间将端口功率设置为-10dBm，我有大约15 dB的电缆损耗。两次SMC测量显示IPwr约为-7.2dBm，增益约为-16dB。我用功率计手动测量了增益，这似乎与-16dB一致，并且功率输出也同意。因此，测得的功率输出比设定的端口功率高约2.7 dB。对于DIQ测量，IPwrF1测量与设定端口功率一致，但测量功率约为-7.3dBm，与SMC测量功率相同。 DIQ增益比SMC增益高2.9dB，与SMC功率测量的误差大致相同。在我移动测试设置之前，这一切都在一周前工作。我不知道是否有一些晦涩难懂的设置被改变了，但我找不到它。谢谢你提供的所有帮助。 SMC_SMC_DIQ Source Power Cal Test.png69.9 KB 以上来自于谷歌翻译以下为原文 Using fw 10.20. I'm coming up with some errors in gain and port power after doing SMC and DIQ cals. The attached .csa and .png files are subsets of what I'm trying to measure, with the settings done manually so my program doesn't come into the picture. If you look at the png file, windows 1 and 3 were done using one CalAll, window 2 was done using a standard SMC cal wizard. I set port power to -10dBm during the cal and for the measurement, and I have about 15 dB cable loss. The two SMC measurements show IPwr at about -7.2dBm, and gain at about -16dB. I've measured the gain manually with a power meter, and that seems to agree with the -16dB, and the power out also agrees. So the measured power out is about 2.7 dB higher than the set port power. For the DIQ measurement, the IPwrF1 measurement agrees with the set port power, but the measured power is about -7.3dBm, the same as the SMC measured powers. And the DIQ gain is 2.9dB higher than the SMC gains, about the same error as the SMC power measurements. This all worked about a week ago, before I moved the test setup. I don't know if there was some obscure setting that was changed, but I haven't been able to find it. Thanks for any help you can give. 附件 SMC_SMC_DIQ Source Power Cal Test.csa2.0 MB SMC_SMC_DIQ Source Power Cal Test.png69.9 KB 0
2018-10-16 06:26:50　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × kingnet_52040 该类别下有 195 个回答。邀请回答 60user7 该类别下有 81 个回答。邀请回答蓝色冰汐该类别下有 45 个回答。邀请回答醉狼工作室该类别下有 41 个回答。邀请回答 ianwhoani 该类别下有 30 个回答。邀请回答 dkhwakd 该类别下有 25 个回答。邀请回答 aaabbb567 该类别下有 23 个回答。邀请回答 e08506806 该类别下有 20 个回答。邀请回答 szzjfyp 该类别下有 18 个回答。邀请回答 sonia87 该类别下有 16 个回答。邀请回答 ningee 该类别下有 16 个回答。邀请回答 zouqinxiang 该类别下有 15 个回答。邀请回答 xj5548 该类别下有 15 个回答。邀请回答 derek88 该类别下有 14 个回答。邀请回答 daichuangs 该类别下有 14 个回答。邀请回答 hzmbs2016 该类别下有 12 个回答。邀请回答 JST2006 该类别下有 12 个回答。邀请回答 fichesw 该类别下有 11 个回答。邀请回答 www037 该类别下有 11 个回答。邀请回答 ToGoodSoft 该类别下有 11 个回答。邀请回答举报乔丽娜相关推荐 • 数据转换系统中的增益误差校准问题，如何通过调整电压基准校准增益误差？ 1266 • 为何此电路的功率增益为负 2590 • PNA-X smc通道电源设置scpi帮助 1430 • 如何计算放大器的增益误差？ 6954 • 使用N5241A进行SMC+相位测量的不确定度规格 1614 • N5241A和SMC+低输入功率下的测量问题 1750 • 怎么在SMC模式下使用PNA-X作为马刺的多输出RF源 1953 • 运算放大器增益误差设计指南 1644 • 使用普通运放时如何获取运放的增益误差和增益非线性这样的指标呢？ 341 • 天线增益的原理，如何计算天线增益？ 5184 1个回答

答案对人有帮助，有参考价值 0 没关系。事实证明，糟糕的ECAL给出了非常混乱的结果。不便之处，敬请原谅。以上来自于谷歌翻译以下为原文 Never mind. It turned out a bad ECAL gave very confusing results. Sorry about any inconvenience.

2018-10-16 06:39:00 评论举报乔丽娜