Monatsarchive: August 2014

1GHz Groundplane

Vna measurments pending…. done -25dB S11@1GHz -> cutting radiating element And this is my plan

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Capacitors for impedance matching

The idea is to switch caps parallel for impedance matching purposes. And it works 🙂 See what you habe learned in your rf class!

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Constant current source for pa biasing

A flexible current source was needed for pa biasing. Works 🙂

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Rigol DP832 as SMU

The Rigol DP832 was used as a very poor SMU (source measurement unit) to characterize a n-channel mosfet (enhancement). It can be seen, that the device has been touched (discontinuities in the curves).  1mA resolution is also to less for device characterization but … Weiterlesen

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Rigol DP832 remote control GUI

I wrote a small remote control gui for my Rigol DP832 bench power supply. It supports setting U,I and turning channels on and off. Also realtime logging and plotting is included. Software has been written in Matlab. I attached the source … Weiterlesen

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