平衡天线上的差分阻抗测量怎么实现

您好，我想测量由共面带状线（无接地）馈电的印刷偶极子的阻抗。
天线结构包括所提到的共面带状线 - 通过四分之一波长阻抗变换器提供阻抗转换 - 以及偶极子本身（辐射元件）。
CPS线的间隙约为0.2mm。
天线理论上有100欧姆的差分阻抗，这是我试图通过实验证实的。
硬件：E5071C我使用基于同轴电缆的测试夹具获得2端口网络散射参数，然后将其转换为差分1端口网络。
然而，这并未取得良好的结果，这导致我寻找除印刷或芯片巴伦之外的其他选择。
为此，是否有可能在此印刷偶极子上实现精确的阻抗测量？
我一直在考虑使用差分探头，但我想排除这个选项并将其作为最终解决方案。
我一直在考虑建立一套TRL校准板的可能性，但我不知道这在理论上是否可能实现。
我需要使用上述硬件对这种差分阻抗测量提供一些指导。
最好的祝福，



     以下为原文

  Hello, I want to measure the impedance of a printed dipole fed by a coplanar stripline (no ground). The antenna structure includes the mentioned coplanar stripline - to provide impedance conversion through a quarter-wavelength impedance transformer - and the dipole itself (radiating element). The CPS line has a gap of approximately 0.2mm. The antenna theoretically has 100 Ohm differential impedance which is what I am trying to experimentally confirm.

Hardware: E5071C

I have used a coax-based test fixture to obtain 2-port network scattering parameters and then converting it to a differential 1-port network. However, this did not sorted good results which led to me search for other options excluding printed or chip baluns.

Giving this, is it possible to achieve a accurate impedance measure on this printed dipole? I have been thinking using differential probes but I want to exclude this option and take it a ultimate solution. I have been thinking also in the possibility to build a set of TRL calibration boards but I do not know if this is even theoretically possible to achieve.

I need some guidance on this differential impedance measure using the hardware described above.

Best regards,