Vector Network Analyzer

dgrujic · 11 April 2018 16:02

A new measurement script for 800 - 1000 MHz range has been uploaded to GitHub VNA example:

myriadrf/pyLMS7002M/blob/master/examples/VNA/measureVNA_900M.py

from __future__ import print_function
from timeit import default_timer as timer
import numpy
import os, sys
from pyLMS7002M import *

if len(sys.argv)!=2:
    print("Usage: python measureVNA_900M.py measurementName")
    exit(1)

startFreq = 800e6
endFreq = 1000e6
nPoints = 201
measName = sys.argv[1]



#################################################
# MCU related

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github.com

myriadrf/pyLMS7002M/blob/master/examples/VNA/calculateVNA_900M.py

import numpy
import os, sys

if len(sys.argv)!=2 and len(sys.argv)!=3:
    print("Usage: python calculateVNA_900M.py measurementName [plotFigures]")
    print("plotFigures is optional and can have values plot for plotting figures or save to plot and save the figures")
    exit(1)

startFreq = 800e6
endFreq = 1000e6
nPoints = 201
measName = sys.argv[1]

saveFig = False
plotFig = False
if len(sys.argv)==3:
    if sys.argv[2]=="plot":
        plotFig = True
    if sys.argv[2]=="save":
        plotFig = True

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Documentation has also been updated to show the setup for new script:
https://github.com/myriadrf/pyLMS7002M/blob/master/examples/VNA/doc/LMS7002M_VNA.pdf
In short, TX1_1 and RX1_L are used to transmit/receive.

Please try the new measurement script and post results.