ELF and VLF antenna and related methods

US9527608B1 · US · B1

Patent metadata
FieldValue
Publication numberUS-9527608-B1
Application numberUS-201514954031-A
CountryUS
Kind codeB1
Filing dateNov 30, 2015
Priority dateDec 1, 2014
Publication dateDec 27, 2016
Grant dateDec 27, 2016

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A method of reducing densities of harmful charged radiation belt particles is includes providing a space-based antenna having a first antenna portion and second antenna portion. The first antenna portion and the second antenna portion are oriented such that their loop planes are perpendicular with respect to the magnetic field of the Earth. The first antenna portion and the second antenna portion are energized with a first frequency and a second frequency, respectively, wherein the first frequency and the second frequency satisfy the relationship that the ratio of the first frequency to the second frequency is equal to the ratio of the second radius to the first radius. The trajectory of energetic particles in the radiation belt, such that the trajectories of energetic particles are shifted into a loss cone.

First claim

Opening claim text (preview).

What is claimed is: 1. A method of reducing densities of harmful charged radiation belt particles, the method comprising: providing a space-based antenna having a first antenna portion and second antenna portion; orienting the first antenna portion and the second antenna portion such that their loop planes are perpendicular with respect to the magnetic field of the Earth; energizing the first antenna portion and the second antenna portion with a first frequency and a second frequency, respectively, wherein the first frequency and the second frequency satisfy the relationship wherein the ratio of the first frequency to the second frequency is equal to the ratio of the second radius to the first radius; generating electromagnetic whistler waves; and influencing a trajectory of the particles in the radiation belt, such that the trajectories of the particles are shifted in the presence of the electromagnetic whistler waves into a loss cone.

Assignees

Inventors

Classifications

  • B64G1/54Primary

    Protection against radiation · CPC title

  • Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop · CPC title

  • Combinations of different interacting antenna units for giving a desired directional characteristic (H01Q25/00 takes precedence) · CPC title

  • Satellite antennas · CPC title

  • Arrangements or adaptations of apparatus or instruments, not otherwise provided for · CPC title

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What does patent US9527608B1 cover?
A method of reducing densities of harmful charged radiation belt particles is includes providing a space-based antenna having a first antenna portion and second antenna portion. The first antenna portion and the second antenna portion are oriented such that their loop planes are perpendicular with respect to the magnetic field of the Earth. The first antenna portion and the second antenna porti…
Who is the assignee on this patent?
Us Air Force
What technology area does this patent fall under?
Primary CPC classification B64G1/54. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).