Electric current injected to ionized gas around laser beam or electron beam to make miles high ham radio antenna
It's not going to work. To ionize air with a laser needs insane power levels usually obtained by pulsing a laser very rapidly and dumping joules in femtoseconds. 
However, there is such a thing as a plasma antenna


  Early practical examples of the technology used discharge tubes to
  contain the plasma and are referred to as ionized gas plasma antennas.
  Ionized gas plasma antennas can be turned on and off and are good for
  stealth and resistance to electronic warfare and cyber attacks.
  Ionized gas plasma antennas can be nested such that the higher
  frequency plasma antennas are placed inside lower frequency plasma
  antennas. Higher frequency ionized gas plasma antenna arrays can
  transmit and receive through lower frequency ionized gas plasma
  antenna arrays. This means that the ionized gas plasma antennas can be
  co-located and ionized gas plasma antenna arrays can be stacked.
  Ionized gas plasma antennas can eliminate or reduce co-site
  interference. Smart ionized gas plasma antennas use plasma physics to
  shape and steer the antenna beams without the need of phased arrays.