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  1. #1
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    RF distribution Newbie question !

    Disclaimer ; If you tend to be annoyed by lack of knowledge, please scroll on! I am a sound engineer, I have very limited knowledge in RF and analog circuits. I try to read and watch tutorials, but I get lost very quickly as I don't speak the basics of this language.

    The project ; I am building a small 2 way distribution box for my 2 wireless microphone receivers.

    Path ; Dipole antenna -> Balun -> 2 way Power Splitter - 2X female SMAs output -> wireless receivers.

    The question ; I know this is elementary school for most of you, I just need someone to point me out which pins to connect where.

    I got myself a mini-circuit 1:1 transformer and a 2 way power splitter. I am good at soldering, but I just don't know technically how to connect everything.

    Here is my thinking, please tell me where I am wrong.

    So we start with the 2 Dipole elements, one goes in the Primary of the balun, the other one goes in the secondary.
    At the other side of the balun, Primary Dot becomes my main "signal", Secondary Dot connects to ground of the hole circuit.
    Then my main signal enters the "S" port of the splitter, and the splitter is attached to ground that carries the signal from the other sides of the dipole (?)
    Then at the exit of the Splitter, I attach 2 SMAs, that are grounded as well.

    Here below the schematic of my 2 units.

    Thank you so much for your help, it is very much appreciated.

    Splitter ; https://www.minicircuits.com/pdfs/ADP-2-9+.pdf

    Balun ; https://www.minicircuits.com/pdfs/ADTL2-18+.pdf

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  2. #2
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    Re: RF distribution Newbie question !

    Your requests depend on ;

    -@ Which Frequency ? The components will be defined in regards of Operating Frequency.
    -@ What Distance
    - Why Dipole Antenna ?? ( Because Dipole Antennas are not Omni-directional so they have receiving/transmitting EM Patterns and the Microphones on the stage should be accessible-to my knowledge- from
    every corner of the stage. Right ? If it's so, Dipole Antenna won't be a good choice.



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  3. #3
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    Re: RF distribution Newbie question !

    Hi!
    Thank you for your reply!

    -@ Which Frequency ? It's UHF from 470 to 600MHz. I already found the components that would suit this purpose ; balun : https://www.minicircuits.com/pdfs/ADTL2-18+.pdf Splitter : https://www.minicircuits.com/pdfs/ADP-2-9+.pdf

    -@ What Distance Between 20 and around 200 feets.

    - Why Dipole Antenna ? Because it is the best result I can get for its size (it is used on TV and documentary.) I also use log periodic antennae but they are not very portable for the application I want, it has to be mounted on a bag. I am already using dipole antennae and they work well! I'm just trying here to link them to two separate devices.



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