Antenna System Design

Electronics Infoline Web

MEI - Antenna Design Freeware

1D and 2D arrays.

http://www.myerseng.com/download.html

http://www.nittany-scientific.com/

calculate size and diameters for Log Periodic Array Broadband antenna.

http://www.cetest.nl/zips/lpcad27.zip

CAD-Software for Evaluation and Development

http://www.mrs.bt.co.uk/dubus/9103-4.pdf

Calculate quarter, half, and full wavelength.

http://www.k1dwu.net/antennacalc.phtml

Calculations for dipole, 3-element Yagi, 7/8, quarter, half, and full wavelength.

http://bfn.org/~bn589/antenna.html

http://www.vk2zay.net/helical.php

http://www.emsci.com/