US6300914B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractal loop antenna
Assignee: Retro Reflective Optics LLC
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Filing: 1999-08-12
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Granted: 2001-10-09
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Expires: 2019-08-12
Abstract
Abstract A reduced size wideband antenna operates at multiple frequency bands. The antenna is formed from a plurality of fractal elements either cascade connected, series connected or parallel connected. The fractal elements of the antenna structure repeat a specific geometric shape.
Inventors
- 👤 Xianhua Yang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:52
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/36; H01Q1/38; H01Q7/00
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
67 words
A fractal antenna comprising: a plurality of fractal elements, wherein each of the fractal elements is of a different dimensional size and wherein the sides of each of the fractal elements are folded in a same plane of the fractal element to form a sawtooth pattern; and connection means for connecting the fractal elements in one of a cascade connection, a series connection and a parallel connection.
Claim 2
Dependent Claim
67 words
A fractal antenna comprising: a plurality of fractal elements, wherein each of the fractal elements is of a different dimensional size and wherein the sides of each of the fractal elements are folded in a same plane of the fractal element to form a sawtooth pattern; and connection means for connecting the fractal elements in one of a cascade connection, a series connection and a parallel connection.
Claim 3
Dependent Claim
28 words
A fractal antenna as claimed in claim 1 , wherein each fractal element is also folded in a plane perpendicular to the same plane as the fractal element.
Claim 4
Dependent Claim
44 words
A fractal antenna comprising: a plurality of fractal elements, wherein each fractal element is a three dimensional element of a different dimensional size; and connection means for connecting the fractal elements in one of a cascade connection, a series connection and a parallel connection.
Claim 5
Dependent Claim
44 words
A fractal antenna comprising: a plurality of fractal elements, wherein each fractal element is a three dimensional element of a different dimensional size; and connection means for connecting the fractal elements in one of a cascade connection, a series connection and a parallel connection.
Claim 6
Dependent Claim
20 words
A fractal antenna as claimed in claim 3 , wherein each fractal element comprises a sprial or helical geometric shape.
Claim 7
Dependent Claim
41 words
A fractal antenna as claimed in claim 3 , wherein each fractal element comprises a folded wire loop, wherein each loop includes a plurality of loop elements oriented in a plane perpendicular to a main plane of the folded wire loop.
Claim 8
Dependent Claim
54 words
A fractal antenna as claimed in claim 3 , wherein each fractal element comprises a generally square geometric shape, wherein first and second corners of each fractal element are in a first plane and third and fourth corners of each fractal element are in a second plane that is parallel to the first plane.
Claim 9
Dependent Claim
31 words
A fractal element as claimed in claim 6 , wherein the first and second corners are opposite to one another and the third and fourth corners are opposite to one another.
References Cited (Backward Citations)
US3534372A
Cited
US4595930A
Cited
US5006858A
Cited
US6043792A
Cited
US6104349A
Cited
US6140975A
Cited
WO1999025044A1
Cited
US5929825A
Cited
US6166694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-10-08 | 2005-04-09 | 2005-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-10-08 | 2009-04-09 | 2009-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-10-08 | 2013-04-09 | 2013-10-09 | $7700.00 | Window Closed / Lapsed |