HAARP Patent: patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/PTO/srchnum.htm&r=1&f=G&l=50&s1=4,686,605.PN.&OS=PN/4,686,605&RS=PN/4,686,605 United States Patent 4,686,605 Eastlund August 11, 1987 Method and apparatus for altering a region in the earths atmosphere, ionosphere, and/or magnetosphere Abstract A method and apparatus for altering at least one selected region which normally exists above the earths surface. The region is excited by electron cyclotron resonance heating to thereby increase its charged particle density. In one embodiment, circularly polarized electromagnetic radiation is transmitted upward in a direction substantially parallel to and along a field line which extends through the region of plasma to be altered. The radiation is transmitted at a frequency which excites electron cyclotron resonance to heat and accelerate the charged particles. This increase in energy can cause ionization of neutral particles which are then absorbed as part of the region thereby increasing the charged particle density of the region. Inventors: Eastlund; Bernard J. (Spring, TX) Assignee: APTI, Inc. (Los Angeles, CA) Family ID: 24772054 Appl. No.: 06/690,333 Filed: January 10, 1985
Posted on: Fri, 27 Jun 2014 06:53:40 +0000