Making VNA Measurements in a non-50 Ohm Universe (065) скачать в хорошем качестве

Making VNA Measurements in a non-50 Ohm Universe (065)

So you have some device which has an input impedance and, possibly, an output impedance which is not 50-Ohms. You have your nano-VNA, miniVNA tiny or other measurement device that you want to use to make measurements on this device AND maintain the proper impedance match with the device. But these measurement instruments have an input and output impedance of 50-Ohms which is not an impedance match to you device. In this video I am going to present two ways you can approach this problem. WAY#1: The "Mechanical Impedance Conversion" Method WAY#2: The PAD Method I will compare the results from these two methods. ========= LINKS FOR YOU =============== LINK to the PDF which has the formulas used in this video: https://drive.google.com/file/d/10yI_... ======================================= Time Markers for Your Convenience ---------------------------- 00:05 Introductory Comments 01:24 Problem Definition 03:03 What exactly am I going to be doing? 04:17 WAY#1: "Mechanical Impedance Transformation" 05:52 Step#1 - Conversion 06:25 Step#2 - Calibration 09:55 WAY#2: PAD Method 10:21 What is it made of? 10:45 How do I design one? 14:00 How to use it... 14:56 Conversion: Moving from the VNA's 50 Ohm world to the non-50 Ohm World 17:18 The Comparison: WAY#1 vs WAY#2 17:59 SWR 19:16 Input Impedance 21:49 Thru (Frequency Response) 24:33 Multiple Measurements Averaged? 25:01 Thru (Frequency Response) 25:59 SWR & Input Impedance 26:57 Final comments and toodle-oots -----------------------------