I am not shure if one can DIY such an antenna, but it's an intersting read and could give ideas for your own antenna tests.
http://www.mwrf.com/components/extendin ... 089c51bd89
Discuss commercial and home made antennas.
2 posts • Page 1 of 1
Well its hard for most DIYers to test the antenna at those frequencies, but you can probably make a fairly good eliptical monopole for lower frequencies(up to a few GHz). Obviously you need the kit to test and adjust it for optimum performance, but it will probably work well enough with guess work. The dimensions for the CPW feed is easy to find from online calculators.