MegiQ VNA Sandbox Скачать руководство пользователя страница 1 | Manualshive

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MegiQ VNA Sandbox Скачать руководство пользователя страница 1

VNA Sandbox User Guide

Version 2B

© 2013 - 2017, MegiQ

www.megiq.com

MegiQ

VNA-Sandbox

User Guide

MegiQ BV

Weegschaalstraat 3
5632 CW Eindhoven
The Netherlands

+31 (0)40 291 1479
[email protected]

www.megiq.com

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Содержание VNA Sandbox

Страница 1: ...NA Sandbox User Guide Version 2B 2013 2017 MegiQ www megiq com MegiQ VNA Sandbox User Guide MegiQ BV Weegschaalstraat 3 5632 CW Eindhoven The Netherlands 31 0 40 291 1479 sales megiq com www megiq com...

Страница 2: ...23 17 series resonant circuit with resistor parallel with inductor 24 18 parallel resonant circuit 31 19 parallel resonant circuit with parallel resistor 32 20 parallel resonant circuit with resistor...

Страница 3: ...VNA Sandbox User Guide Version 2B 2013 2017 MegiQ www megiq com About this guide...

Страница 4: ...u use the real ones the ones intended for measurement purposes realize that they are very expensive that mating them too often will wear them down If you use inexpensive standard cables make sure not...

Страница 5: ...se you do not have a MegiQ VNA available In that case the buttons to push on the VNA will be different And several measurements will be unavailable because the MegiQ VNA how simple it may look has a l...

Страница 6: ...over what do you want to know what do you want to do with the results etc Choose the point where you want to measure It is RF so every millimetre counts run length transform impedances so choose this...

Страница 7: ...VNA Sandbox User Guide Version 2B 2013 2017 MegiQ www megiq com Calibration...

Страница 8: ...very temperature stable you will not have to perform this calibration routine very often But changing cables connectors or frequency range means that you most renew the calibration Avoid bending cabl...

Страница 9: ...ions both ports at the same time in case of a 2 port measurement User Calibration tells the instrument to use the calibration you perform with the OSLT kit When this box is not checked the instrument...

Страница 10: ...rt circuit on the Sandbox circuit 12 5 select P1 Short and press Calibrate load 6 Connect the VNA to the Load circuit on the Sandbox circuit 13 7 select P1 Load and press Calibrate final check Press S...

Страница 11: ...that through 9 Connect both ports to the Through circuit on the Sandbox circuit 14 10 select P2 Tru P1 and press Calibrate final check Connect both ports to the Load circuit on the Sandbox circuit 13...

Страница 12: ...VNA Sandbox User Guide Version 2B 2013 2017 MegiQ www megiq com 12 Single Port Measurements...

Страница 13: ...under test or in case of the antenna experiments just putting your hand in the neighbourhood of the circuit using the sandbox This is very easy Every circuit has a number one or more UFL connectors a...

Страница 14: ...u see the graph of a series resonant circuit leave the outer rim going a bit to the middle it tells you that the circuit is not that ideal at all which is with anything in real life Anything within th...

Страница 15: ...ut when you move away from resonance the impedance of the LC will go way up and the influence of the parallel resistor will be greater until finally you only see this resistor 50 Above resonance the c...

Страница 16: ...But around resonance the LC part shows very low impedance and then the resistor 50 has a big influence The line does slightly go to the inner of the chart at very high frequencies This is caused by t...

Страница 17: ...lmost no importance But when frequency goes up the capacitive impedance goes down and the RL part gets more influence At resonance the line crosses the reel line the horizontal line in the chart much...

Страница 18: ...or in series with inductor 34 antenna circuit 41 2 port measurements resistive attenuator 15 series resistor 16 low pass filter 25 high pass filter 26 band pass filter 43 voltage controled low pass fi...

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