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  • Users: JBE
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  1. JBE

    500 kHz-500 MHz current transformer

    I am designing a current transformer that maybe cannot be done using a single core without switching. I am considering a single- turn primary winding with the secondary winding loaded with a low resistance. I request some advice regarding its design. I have references indicating that in order...
  2. JBE

    RF ground planes layout

    May somebody provide me with any theoretical-practical application note (articles, web pages ...) regarding RF ground planes layout (up to 1.2 GHz)? I certainly know about the characteristic PCB layout guidelines. A continuous ground plane on the back side of a printed circuit board as an...
  3. JBE

    AM low voltage varactors

    I am working in a design that requires a low voltage varactor as the one used in AM tuning applications. A 5V tuning voltage could be provided. Ideally the diode should go from 47 pF up to above 500 pF. I found a couple Sanyo varactor diodes that probably could perform that task. These would...
  4. JBE

    Signal Synthesizer SSB Phase Noise measurement using an old S. Anal.

    I have available an old HP Spectrum Analyzer. Tuning frequency, Bandwidth, Scan Width and Input Attenuation controls are available on the HP 8554L RF section. The IF HP 8552B section provides bandwidth/gain selection and detection. I would like to determine the SSB Phase Noise of a signal...

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