Antenna lifting apparatus and related techniques
US-9509037-B2 · Nov 29, 2016 · US
Deployable helical antenna for nano-satellites
US8970447B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8970447-B2 |
| Application number | US-201213564393-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 1, 2012 |
| Priority date | Aug 1, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A helical antenna operable to be stowed on and deployed from a cubesat. The antenna includes two helical elements wound in opposite directions and defining an antenna column, where one of the helical elements is a conductive antenna element. The antenna also includes a plurality of circumferentially disposed vertical stiffeners extending along a length of the column and being coupled to the helical elements at each location where the vertical stiffeners and the helical elements cross. The helical elements and the vertical stiffeners are formed of a flexible material, such as a fiber glass, so that the antenna can be collapsed and stowed into a relatively small space. To position the antenna in the stowed configuration, the vertical stiffeners are folded on each other in a radial direction, and then the folded antenna is rolled in an axial direction from one end of the column to the other end.
First claim
Opening claim text (preview).
What is claimed is: 1. An antenna comprising: a plurality of helical elements defining an antenna column, wherein at least one of the helical elements is an antenna element that is conductive; and a plurality of circumferentially disposed and spaced apart linear stiffener elements extending along a length of the column and being bonded to the plurality of helical elements at each location where the stiffener elements and the helical elements cross, wherein the antenna is configu…
Assignees
Inventors
Classifications
Electricity · mapped topic
- H01Q1/1235Primary
Electricity · mapped topic
- H01Q1/288Primary
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8970447B2 cover?
- A helical antenna operable to be stowed on and deployed from a cubesat. The antenna includes two helical elements wound in opposite directions and defining an antenna column, where one of the helical elements is a conductive antenna element. The antenna also includes a plurality of circumferentially disposed vertical stiffeners extending along a length of the column and being coupled to the hel…
- Who is the assignee on this patent?
- Ochoa Daniel J, Marks Geoffrey W, Rohweller David J, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification H01Q1/1235. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).