The best replacement for dipole is bipole.

The best alternatives to dipole are rated as following:
★★★★★  bipole
★★★  monopole
★★★  vertical
★  monopole antenna
★  dispersion
★  nonpolar
★  loop antenna
★  g5rv
★  ion
★  polar molecule
★  induced dipole
★  j pole
★  vertical antenna
  london dispersion
  ground plane
  direct radiating
  no dipole
  dipole
  inverted v
  loop
  folded dipole
  inverted vee
  omnidirectional
  dipole dipole
  hydrogen bond
  dipole-dipole
  isotropic
  polarity
  windom
  doublet
  multiple band dipole
  london forces

Your alternative for dipole is not listed? Suggest!
Speaking about dipole, one probably shouldn't forget about balun.

Other search terms related to dipole and their ratings are:
★★★★★ balun
electric field
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dipole
bipole
monopole