What can I do with it? Convert it?Ī: The BF981 noise numbers in the datasheet seems to be right. The noise admittance cartezian charts in the datasheet are nice. The point of minimum noise figure and noise circles are of my interest.
Q: Recently looking at the datasheet of Dual-gate MOSFET BF981 from Vishay-Telefunken. It might be a good idea to pick up the phone and call. What is it, what can I do?Ī: It can be multiple things at once.
#Smith chart program download
The throughput performance for upload and download is misery. Q: When I move the 2.4GHz and 5GHz antenna, the signal quality rapidly changes. Calculation and measurement are two different things. What is it?Ī: Calculate the impedance, and measure the impedance with vector network analyzer. I noticed when I put my finger in specific spot of the device, the signal jumps up and down, and it takes less current. The FPGA handling GBits needs impedance matching. It has nothing to do with "old physics" or "new physics". Numbers with Negative Real part are outside the circle. Numbers with Positive Real part are inside the circle. Smith chart is math tranformation of 2D-Cartezian complex plane into a plane and circle. The system has reflections and crosstalk. Now we do FPGA and somehow it doesn't work. I was 30 years in management and heard the word Smith chart.
#Smith chart program software
PowerSmith©™ software celebrates 25+ years of functionality since concept! Electronic Smith Chart program PowerSmith© by VA3DIW.
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