helix antenna 868

Hello all,

I am looking for design ideas to make an helix dual band 433/868 MHz antenna.

Any comment and idea welcome

60cm helix antenna

Hi,

In my last job I unfortunately design Helix antenna and dual helix antenna.
I attach some papers that I still have.
And matlab code that can help you.

Anyway if you need more help talk to me!

David

Hi,
It is a smple Helix Antenna Calculator.