Bisquare -- 4 Half Waves in a Vertical Diamond
Free Space
14.2 MHz
4 wires, feet
8  0 0 0  0 23 23  #12
8  0 23 23  0 .1 46  #12
8  0 -.1 46  0 -23 23  #12
8  0 -23 23 0 0 0  #12
1 source
31,100,0
0 loads

This antenna is like a Lazy H in that it combines 4 half waves in phase, with
both broadside and collinear geometry.  With the bisquare, however, the
elements are not parallel but at 45 deg angles.  This results in incidental
vertically polarized radiation in the plane of the loop, which drops the gain
about 3 dB below that of the Lazy H.  This antenna only requires one support,
but it must be a tall one.