bi helix

I am looking for suggestions for good text references for quadrifilar and bifilar helix antenna design.

Thanks,

H3O

This may help:
http://home.iag.net/~w2du/Reflection...lixAntenna.pdf
http://www.microstripes.com/technica...tenna/ms31.pdf
http://web.ukonline.co.uk/phqfh/phbalun1.pdf
http://scholar.lib.vt.edu/theses/ava.../unrestricted/

Hi

Enclosed is a very good chapter on Quad Helix. Kindly share your work on this antenna.

I'll give these a read,

Thank You!

H3O

Very Informative Post