Material for Quadrifilar Antenna

Hi,

I am working on a quadrifilar antenna on 2.2 GHz frequency. The size of the antenna or axial length is very small. What material is used for both the loops ( is it coax or a copper rod or both ). waiting an early reply.

It usually requires both coax and simple wire.
You might want to read M. Walter Maxwell's book
"Reflections II", published by Worldradio Books.
SH.

Hi ping-pong

in this link you can see the Material for Quadrifilar Antenna

http://jcoppens.com/ant/qfh/fotos1.en.php
http://jcoppens.com/ant/qfh/fotos2.en.php
http://jcoppens.com/ant/qfh/fotos_7eq.en.php
http://jcoppens.com/ant/qfh/fotos_gps.php

and calculator for quad. ant. in

http://jcoppens.com/ant/qfh/calc.en.php

pl