This paper investigates frequency limitations of calibration and de-embedding techniques for S parameter measurements. First, the TRL calibration methods are analysed and the error due to the probe movement when measu...This paper investigates frequency limitations of calibration and de-embedding techniques for S parameter measurements. First, the TRL calibration methods are analysed and the error due to the probe movement when measuring the different line lengths is quantified, next the coupling between the probe-heads and the wafer surface is investigated and finally an upper frequency validity limit for the standard Open-Short de-embedding method is given. The measured results have been confirmed thanks to the use of an electro-magnetic simulator.展开更多
针对薄膜体声波谐振腔(FBAR)滤波器测试夹具误差校准,提出一种改进的TRL校准方法,将三维电磁仿真和TRL计算结合,用于测试套件(夹具和TRL校准件)的前期设计与优化,确保TRL校准件达到足够精度。由于DUT(device under test,待测器件)参数未...针对薄膜体声波谐振腔(FBAR)滤波器测试夹具误差校准,提出一种改进的TRL校准方法,将三维电磁仿真和TRL计算结合,用于测试套件(夹具和TRL校准件)的前期设计与优化,确保TRL校准件达到足够精度。由于DUT(device under test,待测器件)参数未知,实测中采用四种不同结构的测试套件,校准前各组测试结果差异较大,但TRL校准后高度吻合,通带内的差异小于0.2 dB,不但精准确定DUT真实参数,而且表明本TRL校准方法对于不同结构夹具去嵌入的有效性。该仿真计算不仅可以设计高精度测试套件,避免过度依靠实测,并且可与实测相互验证,并可推广到其他微波器件的测量,节省测试成本。展开更多
为了满足设计功率放大器时对晶体管精确测试的要求,设计了一种工作在S波段的氮化镓晶体管专用微波测试夹具,根据TRL校准原理制作了相应的校准件来完成夹具的去嵌入。实际测试结果表明,该测试夹具及TRL校准件达到了预期的效果,仿真值与...为了满足设计功率放大器时对晶体管精确测试的要求,设计了一种工作在S波段的氮化镓晶体管专用微波测试夹具,根据TRL校准原理制作了相应的校准件来完成夹具的去嵌入。实际测试结果表明,该测试夹具及TRL校准件达到了预期的效果,仿真值与实测值一致性好,损耗误差为0.3 d B,去嵌入之后得到的夹具差损<0.4 d B,S11和S22<-15 d B,用该夹具测得的晶体管参数与其数据手册给出的值相吻合。展开更多
文摘This paper investigates frequency limitations of calibration and de-embedding techniques for S parameter measurements. First, the TRL calibration methods are analysed and the error due to the probe movement when measuring the different line lengths is quantified, next the coupling between the probe-heads and the wafer surface is investigated and finally an upper frequency validity limit for the standard Open-Short de-embedding method is given. The measured results have been confirmed thanks to the use of an electro-magnetic simulator.
文摘针对薄膜体声波谐振腔(FBAR)滤波器测试夹具误差校准,提出一种改进的TRL校准方法,将三维电磁仿真和TRL计算结合,用于测试套件(夹具和TRL校准件)的前期设计与优化,确保TRL校准件达到足够精度。由于DUT(device under test,待测器件)参数未知,实测中采用四种不同结构的测试套件,校准前各组测试结果差异较大,但TRL校准后高度吻合,通带内的差异小于0.2 dB,不但精准确定DUT真实参数,而且表明本TRL校准方法对于不同结构夹具去嵌入的有效性。该仿真计算不仅可以设计高精度测试套件,避免过度依靠实测,并且可与实测相互验证,并可推广到其他微波器件的测量,节省测试成本。
文摘为了满足设计功率放大器时对晶体管精确测试的要求,设计了一种工作在S波段的氮化镓晶体管专用微波测试夹具,根据TRL校准原理制作了相应的校准件来完成夹具的去嵌入。实际测试结果表明,该测试夹具及TRL校准件达到了预期的效果,仿真值与实测值一致性好,损耗误差为0.3 d B,去嵌入之后得到的夹具差损<0.4 d B,S11和S22<-15 d B,用该夹具测得的晶体管参数与其数据手册给出的值相吻合。