Two Section W8JK Flat-Top Beam
Free Space
14.2 MHz
2 wires, feet
20   0  -33 0     0 33 0  #12
20  16  -33 0    16 33 0  #12
2 sources
10 100 0
29 100 180
0 loads

This simple antenna will provide bidirectional gain on both 40 and 20 meters.