NanoVNA V2: Female Calibration Kit vs. Port Extensions

Описание: In this video I make a comparison between 1 and 2 port device measurements when using a female calibration kit vs. a negative port extension to move the measurement plane back to the male SMA connector when using the stock NanoVNA V2 calibration kit. I observe that a negative port extension (negative electrical delay) is probably not a reliable way of making measurements with the NanoVNA V2, especially at microwave frequencies. I also provide some other recommendations for possibly de-embedding a 2-port device measured using a standard NanoVNA V2 calibration kit.

w2aew's Port Extension Video:    • #317: NanoVNA Port Extension using the Ele...  
Excel Data File: https://drive.google.com/file/d/1YD4U...

Introduction: (0:00)
Calibrations for Test Overview: (3:16)
1-Port DUT - Vivaldi Antenna: (4:41)
2-Port DUT - 10dB Attenuator: (6:44)
Cal 0 - Normal NanoVNA V2 Calibration: (6:57)
Cal 1 - Application of the Port Retraction: (9:23)
Cal 2 - 1-Port Female SMA Kit Cal: (11:43)
Cal 3 - 2-Port Female SMA Kit Cal: (13:00)
Cal 0 Verification: (14:00)
Cal 1 Verification: (15:21)
Cal 2 Verification: (16:20)
Cal 3 Verification: (17:08)
Vivaldi Antenna Measurement Results: (18:21)
10dB Attenuator Measurement Results: (22:43)
Female-Female SMA Adapter Through Measurement Results: (23:42)
Conclusions: (25:15)

Thumbnail Credit: Francis Fletcher

#NanoVNA #RF #PortExtensions