US6411261B1
Expired / Lapsed
US
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Artificial magnetic conductor system and method for manufacturing
Assignee: E-TENNA Corp
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Filing: 2001-04-27
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Granted: 2002-06-25
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Expires: 2021-04-27
Abstract
Abstract The invention provides an artificial magnetic conductor (AMC) system and method for manufacturing. The AMC has a post plane with posts and slots. The posts are operatively disposed adjacent to conductive shapes on one or more frequency selective surfaces. The posts formably extend from the post plane.
Inventors
- 👤 James D. Lilly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:54
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/0006; H01Q15/006; H01Q15/008
Claims Analysis
Total Claims: 63
Claim 1
Independent Claim
61 words
An artificial magnetic conductor (AMC), comprising: a post plane having at least one post and at least one slot, where the at least one post formably extends from the post plane; and at least one frequency selective surface having at least one conductive shape, where the at least one post is operatively disposed adjacent to the at least one conductive shape.
Claim 2
Dependent Claim
61 words
An artificial magnetic conductor (AMC), comprising: a post plane having at least one post and at least one slot, where the at least one post formably extends from the post plane; and at least one frequency selective surface having at least one conductive shape, where the at least one post is operatively disposed adjacent to the at least one conductive shape.
Claim 3
Dependent Claim
16 words
The AMC according to claim 1 , where the at least one post comprises a tab.
Claim 4
Dependent Claim
15 words
The AMC according to claim 2 , where the tab comprises at least one shoulder.
Claim 5
Dependent Claim
31 words
The AMC according to claim 3 , where: the tab further comprises a pin; the at least one conductive shape forms a hole; and the pin is disposed in the hole.
Claim 6
Dependent Claim
43 words
The AMC according to claim 3 , where: the at least one frequency selective surface comprises a first FSS layer and a second FSS layer; and the at least one shoulder comprises two shoulders operatively connected to the first and second FSS layers.
Claim 7
Dependent Claim
42 words
The AMC according to claim 1 , where: the at least one post comprises at least one projection; the at least one voided area comprises at least one slot; and the at least one projection essentially covers the at least one slot.
Claim 8
Dependent Claim
19 words
The AMC according to claim 1 , where the at least one conductive shape has an essentially rectangular configuration.
Claim 9
Dependent Claim
26 words
The AMC according to claim 1 , where the at least one conductive shape and the at least one post have essentially the same periodic arrangement.
Claim 10
Dependent Claim
19 words
The AMC according to claim 1 , where the at least one frequency selective surface further comprises a substrate.
Claim 11
Dependent Claim
25 words
The AMC according to claim 1 , further comprising a dielectric layer disposed between the post plane and the at least one frequency selective surface.
Claim 12
Dependent Claim
26 words
The AMC according to claim 10 , where the dielectric layer comprises at least one of a fiber reinforced polymer and a copper laminate epoxy glass.
Claim 13
Dependent Claim
13 words
The AMC according to claim 10 , where the dielectric layer comprises air.
Claim 14
Dependent Claim
18 words
The AMC according to claim 1 , further comprising a backing film disposed adjacent to the post plane.
Claim 15
Dependent Claim
29 words
The AMC according to claim 1 , where the at least one frequency selective surface forms a space between the frequency selective surface and the at least one post.
Claim 16
Dependent Claim
28 words
The AMC according to claim 1 , where the at least one post comprises a plurality of posts having a period less than the height of the posts.
Claim 17
Dependent Claim
23 words
The AMC according to claim 15 , where the period is less than or equal to about one-half the height of the posts.
Claim 18
Dependent Claim
20 words
The AMC according to claim 1 , where the frequency selective surface and the post plane have a curvilinear configuration.
Claim 19
Dependent Claim
28 words
The AMC according to claim 1 , where the at least one post comprises a plurality of posts having an essentially common angle relative to the post plane.
Claim 20
Dependent Claim
32 words
The AMC according to claim 1 , where the at least one post forms an angle in the range of about 60 degrees through about 90 degrees relative to the post plane.
Claim 21
Dependent Claim
73 words
An artificial magnetic conductor (AMC), comprising: at least one frequency selective surface; and a post plane having at least one post assembly and at least one slot, where each post assembly comprises at least one post and at least one plate, where the at least one post assembly formably extends from the post plane, and where the at least one plate is operatively disposed adjacent to the at least one frequency selective surface.
Claim 22
Dependent Claim
73 words
An artificial magnetic conductor (AMC), comprising: at least one frequency selective surface; and a post plane having at least one post assembly and at least one slot, where each post assembly comprises at least one post and at least one plate, where the at least one post assembly formably extends from the post plane, and where the at least one plate is operatively disposed adjacent to the at least one frequency selective surface.
Claim 23
Dependent Claim
30 words
The AMC according to claim 20 , where the at least one plate forms a space between the at least one plate and the at least one frequency selective surface.
Claim 24
Dependent Claim
15 words
The AMC according to claim 21 , where a dielectric film essentially fills the space.
Claim 25
Dependent Claim
29 words
The AMC according to claim 20 , where the at least one plate is connected to at least one conductive shape on the at least one frequency selective surface.
Claim 26
Dependent Claim
27 words
The AMC according to claim 20 , where the at least one plate forms at least one conductive shape on the at least one frequency selective surface.
Claim 27
Dependent Claim
32 words
The AMC according to claim 20 , where the at least one frequency selective surface (FSS) comprises a double-sided FSS having conductive shapes arranged on a bottom layer and a top layer.
Claim 28
Dependent Claim
29 words
The AMC according to claim 25 , where the at least one plate forms at least one of the conductive shapes on the bottom layer of the double-sided FSS.
Claim 29
Dependent Claim
18 words
The AMC according to claim 20 , where the at least one plate has an essentially rectangular configuration.
Claim 30
Dependent Claim
27 words
The AMC according to claim 20 , where the at least one conductive shape and the at least one post assembly have essentially the same periodic arrangement.
Claim 31
Dependent Claim
25 words
The AMC according to claim 20 , further comprising a dielectric layer disposed between the post plane and the at least one frequency selective surface.
Claim 32
Dependent Claim
18 words
The AMC according to claim 20 , further comprising a backing film disposed adjacent to the post plane.
Claim 33
Dependent Claim
23 words
The AMC according to claim 20 , where the at least one frequency selective surface and the post plane have a curvilinear configuration.
Claim 34
Dependent Claim
21 words
The AMC according to claim 20 , where the at least one post assembly further comprises at least one hinge portion.
Claim 35
Dependent Claim
20 words
The AMC according to claim 20 , where the at least one plate further comprises at least one open section.
Claim 36
Dependent Claim
30 words
The AMC according to claim 33 , where the at least one open section comprises three open sections, and where the at least one plate forms a rectangular cloverleaf configuration.
Claim 37
Dependent Claim
30 words
The AMC according to claim 20 , where the at least one post assembly comprises a plurality of post assemblies having an essentially common angle relative to the post plane.
Claim 38
Dependent Claim
33 words
The AMC according to claim 20 , where the at least one post assembly forms an angle in the range of about 60 degrees through about 90 degrees relative to the post plane.
Claim 39
Independent Claim
52 words
A method for manufacturing an artificial magnetic conductor (AMC), comprising: forming at least one post and at least one slot in a post plane, where the at least one post formably extends from the post plane; and operatively disposing the at least one post adjacent to at least one frequency selective surface.
Claim 40
Independent Claim
52 words
A method for manufacturing an artificial magnetic conductor (AMC), comprising: forming at least one post and at least one slot in a post plane, where the at least one post formably extends from the post plane; and operatively disposing the at least one post adjacent to at least one frequency selective surface.
Claim 41
Dependent Claim
26 words
The method for manufacturing an AMC according to claim 37 , further comprising disposing a dielectric layer between the post plane and the frequency selective surface.
Claim 42
Dependent Claim
23 words
The method for manufacturing an AMC according t o claim 37 , further comprising disposing a backing film adjacent to the post plane.
Claim 43
Dependent Claim
22 words
The method for manufacturing an AMC according to claim 37 , where forming at least one post further comprises forming a tab.
Claim 44
Dependent Claim
24 words
The method for manufacturing an AMC according to claim 40 , where forming the tab comprises forming at least one shoulder on the tab.
Claim 45
Dependent Claim
23 words
The method for manufacturing an AMC according to claim 41 , where forming the tab further comprises forming a pin on the tab.
Claim 46
Dependent Claim
32 words
The method for manufacturing an AMC according to claim 42 , further comprising disposing the pin in a hole formed by a conductive shape on the at least one frequency selective surface.
Claim 47
Dependent Claim
24 words
The method for manufacturing an AMC according to claim 37 , where forming at least one post comprises forming a projection and a slot.
Claim 48
Dependent Claim
22 words
The method for manufacturing an AMC according to claim 43 , where the projection essentially covers the slot on the post plane.
Claim 49
Dependent Claim
27 words
The method for manufacturing an AMC according to claim 37 , further comprising forming a space between the frequency selective surface and the at least one post.
Claim 50
Dependent Claim
33 words
The method for manufacturing an AMC according to claim 37 , where forming at least one post comprises forming a plurality of posts having a period less than the height of the posts.
Claim 51
Dependent Claim
27 words
The method for manufacturing an AMC according to claim 47 , where the period is less than or equal to about one-half the height of the posts.
Claim 52
Dependent Claim
26 words
The method for manufacturing an AMC according to claim 37 , further comprising forming the frequency selective surface and the post plane into a curvilinear configuration.
Claim 53
Dependent Claim
39 words
The method for manufacturing an AMC according to claim 37 , further comprising forming the at least one post at an angle in the range of about 60 degrees through about 90 degrees in relation to the post plane.
Claim 54
Independent Claim
68 words
A method for manufacturing an artificial magnetic conductor (AMC), comprising: forming at least one post assembly and at least one slot in a post plane, where each post assembly comprises at least one post and at least one plate, where the at least one post assembly formably extends from the post plane; and operatively disposing the at least one plate adjacent to at least one frequency selective surface.
Claim 55
Independent Claim
68 words
A method for manufacturing an artificial magnetic conductor (AMC), comprising: forming at least one post assembly and at least one slot in a post plane, where each post assembly comprises at least one post and at least one plate, where the at least one post assembly formably extends from the post plane; and operatively disposing the at least one plate adjacent to at least one frequency selective surface.
Claim 56
Dependent Claim
30 words
The method for manufacturing an AMC according to claim 51 , further comprising forming a space between the at least one frequency selective surface and the at least one plate.
Claim 57
Dependent Claim
20 words
The method for manufacturing an AMC according to claim 52 , further comprising disposing a dielectric film in the space.
Claim 58
Dependent Claim
29 words
The method for manufacturing an AMC according to claim 51 , further comprising forming the at least one frequency selective surface and the post plane into a curvilinear configuration.
Claim 59
Dependent Claim
29 words
The AMC according to claim 51 , further comprising connecting the at least one plate to at least one conductive shape on the at least one frequency selective surface.
Claim 60
Dependent Claim
29 words
The AMC according to claim 51 , further comprising forming the at least one plate into at least one conductive shape on the at least one frequency selective surface.
Claim 61
Dependent Claim
54 words
The AMC according to claim 56 , where the at least one frequency selective surface (FSS) comprises a double-sided FSS having conductive shapes arranged on a bottom layer and a top layer, and the at least one plate forms at least one of the conductive shapes on the bottom layer of the double-sided FSS.
Claim 62
Dependent Claim
29 words
The AMC according to claim 51 , where forming the at least one post assembly further comprises forming the at least one plate with at least one open section.
Claim 63
Dependent Claim
33 words
The AMC according to claim 20 , forming the at least one post assembly at an angle in the range of about 60 degrees through about 90 degrees relative to the post plane.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-06-24 | 2005-12-24 | 2006-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-06-24 | 2009-12-24 | 2010-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-06-24 | 2013-12-24 | 2014-06-25 | $7700.00 | Window Closed / Lapsed |