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Low profile WIFI antenna with a hemispherical pattern

a low-profile, hemispherical technology, applied in the direction of resonant antennas, substantially flat resonant elements, wireless communication, etc., can solve the problems of atomic oxygen, fluctations in size, and easy corrosion of copper,

Inactive Publication Date: 2019-01-24
NASA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes a low-profile WiFi antenna for the ISS that can provide durable and reliable communication in the 5.3 GHz frequency band. The antenna has a symmetrical and asymmetrical hole structure that allows for a hemispherical pattern of radiation. The antenna has a protective dome and is less than 10 mm in height, making it ideal for small space environments such as the ISS. The antenna can be deployed on a Fluid Transfer Module (FTM) and has a maximum area of no more than (30 mm2. Overall, this invention provides a versatile and efficient solution for long-range communication in low-profile environments such as the ISS.

Problems solved by technology

When spacecraft are in LEO, atomic oxygen is a significant problem.
While antenna 300 may have a thin copper layer, copper corrodes easily.
Such temperature fluctuations may cause fluctations in size, “swelling,” along the z-axis.

Method used

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  • Low profile WIFI antenna with a hemispherical pattern
  • Low profile WIFI antenna with a hemispherical pattern
  • Low profile WIFI antenna with a hemispherical pattern

Examples

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Embodiment Construction

[0007]A brief summary of various embodiments is presented below. These embodiments address the need to provide a durable short range antenna for the ISS. In order to overcome shortcomings of the prior art and in light of the present need for a durable antenna for the ISS, a brief summary of various exemplary embodiments is presented. Some simplifications and omissions may be made in the following summary, which is intended to highlight and introduce some aspects of the various exemplary embodiments, but not to limit the scope of the invention. Detailed descriptions of a preferred exemplary embodiment adequate to allow those of ordinary skill in the art to make and use the inventive concepts will follow in later sections. Various embodiments described herein relate to a low-profile WiFi antenna comprising: a circular portion having a radius less than substantially 34 mm; a first U-shaped portion; a second U-shaped portion; a central portion located within both the first U-shaped port...

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Abstract

Various embodiments relate to a low-profile, linearly-polarized patch antenna with parasitic elements at 5.3 GHz for the ISS C-band WiFi band. It may also use the 5.8 GHz band. A protective dome helps to meet low earth orbit space requirements.

Description

RELATED APPLICATIONS[0001]U.S. Patent application entitled “Low Profile WiFi Antenna with a Toroidal Pattern,” attorney docket number GSC-17751-1, which is hereby incorporated by reference for all purposes as if fully set forth herein.ORIGIN OF THE INVENTION[0002]This invention described herein was made by an employee of the United States Government, and may be manufactured and used by or for the Government for Government purposes without the payment of any royalties thereon or therefore.TECHNICAL FIELD[0003]This disclosure relates generally to a low profile WiFi antenna with a hemispherical pattern developed for the International Space Station (ISS), and more specifically, but not exclusively, to a low profile WiFi antenna configured for use in low-Earth orbit.BACKGROUND[0004]The Robotic Refueling Mission (RRM) is a multi-phased International Space Station (ISS) technology demonstration that is testing tools, technologies, and techniques to refuel and repair satellites in orbit, es...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H01Q1/28H04B7/195H01Q1/42
CPCH01Q1/288H01Q1/2291H01Q1/38H01Q1/42H01Q5/30H01Q5/385H01Q7/00H01Q9/0407H01Q19/28H04B7/18515H04B7/195H04W84/12
Inventor MARRERO-FONTANEZ, VICTOR J.
Owner NASA