Re: [Discuss-gnuradio] Antennas

[Marcus D. Leech]

On 08/27/2013 09:06 PM, Richard Thornton wrote:
> Hi everyone,
>
> Apologies if this is slightly OT but I am new to gnu-radio, radio and SDR.
>
> I am interested in what people are doing for antennas, I was thinking
> that some kind of modular antenna would be cool, basically an SMA
> connector, some cable, a groundplane with a hole to slot the antenna
> in to, you could then change the actual antenna piece for different
> frequencies, no doubt I am missing something fundamental?
>
> So my SDR has a frequency range of 300MHz - 3.8GHz, so you could have
> 20 pieces of thick wire (your antenna), each one a different length.
>
> Thanks for looking.
>
> Cheers
> Richard
THere are a number of antenna designs that are broadband.

The discone is the most classic, and there are Log-Periodic Dipole 
Arrays, and log-spiral antennae, and a number.

You should probably exercise your google-fu and see what you might be 
able to have a go at building yourself.

But, yes, having a "library" of 1/4-wave antenna stubs is one way of 
doing it....