Python driver for for Keysight E5071C vector network analyzer
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
numpy
pyvisa
pyvisa-py
This driver provides most commands to scan a frequency range and collect traces on any of channels. Commands can change settings individually or change many parameters related to a specific feature (e.g.: set_trigger(), set_averaging(), set_freq_axis(), set_response_axes()) which takes the paramters as arguments, or any arbitrary set of parameters using the set_paramters() which takes as dictionary as an argument(Look at this function to find the dictionary keys).
When methods that are queries are sent, the query responds is return. When methods that are commands are sent, the command, as a string is returned.
Two ways to use the code are shown, one shorter:
################
# Create object/Connect to device.
################
rm = visa.ResourceManager('@py')
addr = '192.168.0.117'
vna = E5071C(addr)
vna.set_freq_axis(start=1, stop=2, point=1001, bandwidth=1000, sweep_type='lin')
vna.set_set_response_axes(trace_formates=['mlog', 'phase', 'plot'], delay=1, phase_offset=180, Spar='S12')
vna.set_averaging(state='off', count=0)
vna.set_trigger(source='bus', averaging=0, initiate=True)
vna.trigger_now()
data = vna.read()
print(data)
Another longer, where each parameter is individually set:
################
# Create object/Connect to device.
################
rm = visa.ResourceManager('@py')
addr = '192.168.0.117'
vna = E5071C(addr)
################
# Set up parameters related to frequency scan.
################
vna.freq_start(1) # 1GHz
vna.freq_stop(2) #2GHz
vna.points(1001)
vna.bandwidth(1000)
vna.sweep_type('lin')
################
# Set up trace related commands. Channel related commands are similar.
################
vna.traces_number(3)
vna.active_trace(1)
vna.Format('mlog')
vna.Spar('S12')
vna.delay(1)
vna.phase_offset(180)
vna.active_trace(2)
vna.Format('phase')
vna.Spar('S12')
vna.active_trace(3)
vna.Format('Plog')
vna.Spar('S12')
vna.delay(1)
vna.phase_offset(180)
################
# Set up averaging parameters. Don't forget to set the "vna.trigger_averaging(True)" when using averaging
################
vna.average_state(False)
vna.average_count(0)
################
# Set up averaging parameters.
################
print(vna.trigger_source('bus'))
print(vna.trigger_averaging(False))
print(vna.trigger_initiate(True))
################
# Read the data on the screen
################
print(vna.trigger_now())
print(vna.freq_read())
print(vna.trace_read(1)[0])
print(vna.trace_read(2)[0])
data = vna.trace_read(3)
print(data[0])
print(data[1])