Want to make a small directional antenna in UHF bands- either a yagi
or HB9CV or ??? Want the elements to be less than .5 WL. Anyone know
how to center or end load elements so that width of antenna could
collapse down to half to two-thirds the normal .5 WL? Perhaps some
other antenna design would do it but element loading comes first to
mind. Goal is VSWR of 1.5, a FB of 10db or better and beam width of
+/- 20 to 30 degress. In the 900 mhz band would like to limit width
to say 3 to 4 inches versus the nominal 6+. Any thoughts or directions
to look? Thanks!