rf test-board 检波器

https://www.rfdiagnostics.com/store/rfd102a-tb-60hz6ghz-energy-harvesting-test-board
s-parameter:
https://static1.squarespace.com/static/5ced8508bd23380001a232de/t/5dc98fe0df7bde4ab5f37f8a/1573490656963/RFD102A_TEST_BOARD_S11.zip
https://sparamnx.xmicrowave.com/
https://www.rfpage.com/free-tools-to-analyze-and-plot-s-parameters-file/
http://www.rsmicro.com/rsplot-simulator