1 Calibration and RF Measurements using VNA Siglent SNA 5000A

Contents

Common practices .......................................................................................................................................... 3

VNA Pre-set and Calibration file - RF Power off ........................................................................................ 4

Using E-Cal module ........................................................................................................................................ 4

E-Cal Vs Mechanical Calibration Kit ............................................................................................................ 5

Mechanical Calibration Kit ......................................................................................................................... 5

10dB attenuator ........................................................................................................................................... 6

Low Pass filter.............................................................................................................................................. 9

Loads – 4 port ............................................................................................................................................ 10

TRL vs E-Cal calibration ................................................................................................................ 14

TRL kit ......................................................................................................................................................... 14

Making a Cal kit ..................................................................................................................................... 15

TRL Calibration .......................................................................................................................................... 16

E-Cal module calibration .......................................................................................................................... 16

BP filter - broad band setup-measurement ........................................................................................... 17

BP filter - narrow band setup-measurement ......................................................................................... 18

6dB Attenuator – broad band .................................................................................................................. 21

TRL - measuring mechanical calibration kit .......................................................................................... 24

Phase Matched Adaptors ............................................................................................................................. 25

Phase Matched .......................................................................................................................................... 25

Measuring phase of f-f SMA calibration (or any) adaptor ................................................................... 26

Calibration Setup ................................................................................................................................... 26

Procedure and results .......................................................................................................................... 27

Measuring phase of a f-m SMA adaptor ................................................................................................ 28

Calibration Setup ................................................................................................................................... 28

Procedure and results .......................................................................................................................... 29

Measuring phase of a m-m SMA adaptor or RF cable ........................................................................ 29

Calibration Setup ................................................................................................................................... 29

Procedure and results .......................................................................................................................... 30

Parameters to consider for calibration and measurement ...................................................................... 32

Port Extensions.............................................................................................................................................. 33

Measuring Phase Linearity .......................................................................................................................... 34

Manual delay entry .................................................................................................................................... 34

Marker Delay Function – auto TBD ........................................................................................................ 34

Verify Equipment stability ............................................................................................................................. 34