helical antenna designer

http://www.daycounter.com/Calculator...lculator.phtml

This should work for you, for designing a Helical Antenna.

Could it be precisesly designed by NEC? why HFSS is better for helical antennas?

pls nybody have Manual for designing Helical antenna?

"Antennas" by John Kraus has an excellent description and design parameters.

By the way, this answer seems to have been given numerous times in this thread.

Can we use helical antenna in the ku band as feed to 0.6m dish with 300mm focal length?