HF meandered line dipoles optimized with simulated annealing

Electrically small meandered line dipoles for HF (28 MHz) are proposed. The antennas are less than 40% of the length of a conventional half wave dipole, and are self-resonant. The spacing and size of the meandered loops are optimized using simulated annealing; a prototype was constructed to verify the design. Experimental results are consistent with numerical predictions.