Creation of artificial ionization clouds above the earth
United States Patent 4999637
US Patent Issued on March 12, 1991
A method for forming a cloud of artificial ionization above the earth by initially heating the resident plasma at a desired altitude with electromagnetic radiation having a frequency approximately the same as that of the ambient plasma. As the plasma frequency increases due to heating, the radiation frequency is also increased until the final maintenance frequency is attained.

Abstract
A method for forming a cloud of artificial ionization above the earth by initially heating the resident plasma at a desired altitude with electromagnetic radiation having a frequency approximately the same as that of the ambient plasma. As the plasma frequency increases due to heating, the radiation frequency is also increased until the final maintenance frequency is attained.
Claims
What is claimed is:
1. A method of forming a cloud of artificial ionization at an altitude above the earth, said method comprising:
initiating heating of the resident plasma at said altitude by transmitting electromagnetic radiation from the earth to said altitude at an initial frequency which is approximately the same as the original frequency of said resident plasma; and
increasing said frequency of said electromagnetic radiation as said frequency of said resident plasma increases, until a final maintenance frequency is attained, said maintenance frequency being t or above the plasma frequency necessary to provide a plasma having an electron density capable of reflecting communication
or like signals which come into contact with said plasma.
2. The method of claim 1 including:
defocusing said electromagnetic radiation so only the center area of said cloud is initially heated; and
contracting the focus of said electromagnetic radiation as the frequency of said radiation is adjusted until the entire area of said cloud is heated.

3. The method of claim 1 wherein said electromagnetic radiation is transmitted by a single antenna system
4. The method of claim 1 wherein said electromagnetic radiation is transmitted by two antenna systems, each spaced from the other, and inclined whereby the beams of said electromagnetic radiation transmitted from said systems will intersect each other at said altitude.
5. A variable frequency heating method for forming a cloud of artificial ionization at an altitude above the earth, said method comprising:

transmitting electromagnetic radiation form the earth to said altitude at an initial frequency which is approximately the same as the original frequency of the plasma naturally present at said altitude;
focusing said electromagnetic radiation to heat said plasma to thereby accelerate the free electrons therein thereby increasing the frequency of said plasma;
monitoring the frequency of said plasma as it increases;
increasing the frequency of said electromagnetic radiation as said frequency of said plasma increases;
continuing to increase said frequency of said electromagnetic radiation until a final desired maintenance frequency is attained; said final desired frequency being at or above the plasma frequency necessary to provide a plasma having an electron density capable of reflecting communication signals or the like which come into contact with said plasma;
and continuing to transmit said electromagnetic radiation at said final frequency to maintain the integrity of said cloud.
6. The method of claim 5 wherein said final frequency is greater than the frequency of any communication and/or radar signals expected to be reflected by said cloud.
7. The method of claim 6 wherein said electromagnetic radiation is initially focused whereby only the center area of said plasma is initially heated.
8. The method of claim 7 including:
contracting the focus of said electromagnetic radiation as the said frequency of said radiation is increased whereby the entire area of said cloud is heated.
9. The method of claim 8 wherein said frequency of said electromagnetic radiation is increased to approximately match said increasing frequency of said plasma.
10. The method of claim 9 wherein said electromagnetic radiation is transmitted by a single antenna system.
11. The method of claim 9 wherein said electromagnetic radiation is transmitted by two antenna systems, each spaced from the other, and inclined whereby the beams of said electromagnetic radiation transmitted from said systems will intersect each other at said.
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