It would be nice to add design equations for each antenna type. This stuff is great reference material that usually has to be looked up all the time Madhu

I added an external link to a project we're working on. In the coming days, I'll be able to add images and possibly a polar plot diagram to better help visually explain the Helical Antenna. User:jimijames

• no network links in this article//Berserkerus (talk) 08:19, 28 July 2008 (UTC)[reply]

What is the polarization of this type of antenna in the broadside mode? I would expect it to be linearly polarized along the axis of the antenna, but I would like some confirmation.--SkiDragon (talk) 21:51, 12 April 2009 (UTC)[reply]

The broadside helical is polarized in the circular mode. It can be right hand or left hand depending on the direction of the linear windings. Most common is windings with a left hand radiation pattern as typified by the Mobile One DX160SH "Superhelical" design. In reality a left hand helical radiating to a right hand helical will see some attenuation due to the phase difference, with this being detectable only with sensitive milivolt field strength measurements. In practical situations the difference is not detectable by the end user in normal use. (124.186.65.252 (talk) 15:13, 14 October 2009 (UTC))[reply]

You have this backwards: It is the axial mode which is circularly polarised. In the Broadside mode the antenna behaves like a normal (loaded) dipole. ~~ — Preceding unsigned comment added by Gutta Percha (talk • contribs) 12:37, 2 March 2011 (UTC)[reply]