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Re: [Discuss-gnuradio] Antennas

From: Marcus D. Leech
Subject: Re: [Discuss-gnuradio] Antennas
Date: Tue, 27 Aug 2013 21:29:54 -0400
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6

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.


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....

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