Chris Moulding, G4HYG has added a new webpage to the Cross Country Wireless website detailing some of the reflectorless yagi designs he has been experimenting with.
Included in the article are designs for VHF antennas for portable operation and a home station HF version.
Chris’s designs are optimized using the freeware antenna modeling software 4NEC2, and were recently tested during a RSGB UKAC contest.
Antenna Article - http://www.crosscountrywireless.net/reflectorless_yagi_design.html
4NEC2 - http://www.qsl.net/4nec2/