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  • How do antennas which are usually design for 50 ohm impedance matched w

    From chandni bajaj@21:1/5 to All on Wed Aug 23 01:07:23 2023
    Hello,

    Hope you are doing well.

    Can you explain how do antennas, which are usually designed for 50 ohm characteristic impedance of the feed line, matched with free space impedance of 377 ohm for radiation?

    A detailed response will be much appreciated or any links that explains the same in details can also be very helpful.

    Please help me with this query.

    I will be utterly grateful to your meticulous responses.

    Thanks in advance.

    Regards,
    Chandni

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  • From --- -.dotat@21:1/5 to chandnibajaj7@gmail.com on Wed Aug 23 10:47:28 2023
    On Wed, 23 Aug 2023 01:07:23 -0700 (PDT), chandni bajaj <chandnibajaj7@gmail.com> wrote:

    Hello,

    Hope you are doing well.

    Can you explain how do antennas, which are usually designed for 50 ohm characteristic impedance of the feed line, matched with free space impedance of 377 ohm for radiation?

    A detailed response will be much appreciated or any links that explains the same in details can also be very helpful.

    Please help me with this query.

    I will be utterly grateful to your meticulous responses.

    Thanks in advance.

    Regards,
    Chandni

    By just klicking around I found this: https://groups.google.com/g/rec.radio.amateur.antenna/c/-qFx55Fp8kU

    The topic is as old as the world
    and has been discussed a million times :-)

    OE8UWW

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  • From --- -.dotat@21:1/5 to chandnibajaj7@gmail.com on Wed Aug 23 10:36:29 2023
    On Wed, 23 Aug 2023 01:07:23 -0700 (PDT), chandni bajaj <chandnibajaj7@gmail.com> wrote:

    Hello,

    Hope you are doing well.

    Can you explain how do antennas, which are usually designed for 50 ohm characteristic impedance of the feed line, matched with free space impedance of 377 ohm for radiation?

    A detailed response will be much appreciated or any links that explains the same in details can also be very helpful.

    Please help me with this query.

    I will be utterly grateful to your meticulous responses.

    Thanks in advance.

    Regards,
    Chandni

    This is a "wrong question".
    Antennas are not designed for 50 Ohms.
    Only I do connect my cable into the 50 Ohm place.
    Or I fit a transformer to the wire
    which transforms the impedance to my cable spec.
    Example: End fed antennas have an impedance of 3000 Ohms,
    and I connect the 50 Ohm cable via the "BALUN" or "UNUN".

    OE8UWW

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