Patent US6294965B1 successfully refreshed from Google Patents.
US6294965B1
Expired / Lapsed
US
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Stripline balun
Assignee: Anaren Microwave Inc
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Filing: 1999-03-11
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Granted: 2001-09-25
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Expires: 2019-03-11
Abstract
Abstract A surface mount balun includes a first stripline segment having a first and second end, a first balanced port connected to the first end, and a second balanced port connected to the second end, a second stripline segment overlapping and coupled to the first stripline segment, and having a third end adjacent to the first end of the first stripline segment and a fourth end disposed approximately adjacent to the center of the first stripline segment, a third stripline segment overlapping and coupled to the first stripline segment, and having a fifth end adjacent to the second end of the first stripline segment and a sixth end disposed approximately adjacent to the center of the first stripline segment, and a third, unbalanced port connected to the sixth end of the third stripline segment.
Inventors
- 👤 Jeffrey Craig Merrill
- 👤 Hans Peter Ostergaard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:36
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/10
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
242 words
A surface mount balun comprising: a) a first layer of dielectric material; b) a first ground plane formed on a first surface of said first layer; c) a second layer of dielectric material having a first surface and a second surface; d) a third layer of dielectric material having a second ground plane formed thereon; e) a first stripline segment having a first end connected to a first port and a second end connected to a second port, said first stripline segment formed on said first surface of said second layer of dielectric material; f) a second stripline segment having a third and a fourth end, and a third stripline segment having a fifth and a sixth end, both of said second and third stripline segments formed on said second surface of said second layer of dielectric material; g) wherein said first stripline segment has a first end connected to a first port, said first port disposed on an edge of the surface mount balun, and wherein said first stripline segment has a second end connected to a second port, said second port disposed on the first edge of the surface mount balun; h) wherein said fourth end is connected to a third port, said third port disposed on the edge of the surface mount balun; and i) wherein said third end, fourth end and fifth end are each electrically connected to at least one of said firsts and second ground planes.
Claim 2
Dependent Claim
242 words
A surface mount balun comprising: a) a first layer of dielectric material; b) a first ground plane formed on a first surface of said first layer; c) a second layer of dielectric material having a first surface and a second surface; d) a third layer of dielectric material having a second ground plane formed thereon; e) a first stripline segment having a first end connected to a first port and a second end connected to a second port, said first stripline segment formed on said first surface of said second layer of dielectric material; f) a second stripline segment having a third and a fourth end, and a third stripline segment having a fifth and a sixth end, both of said second and third stripline segments formed on said second surface of said second layer of dielectric material; g) wherein said first stripline segment has a first end connected to a first port, said first port disposed on an edge of the surface mount balun, and wherein said first stripline segment has a second end connected to a second port, said second port disposed on the first edge of the surface mount balun; h) wherein said fourth end is connected to a third port, said third port disposed on the edge of the surface mount balun; and i) wherein said third end, fourth end and fifth end are each electrically connected to at least one of said firsts and second ground planes.
Claim 3
Dependent Claim
13 words
The balun of claim 1 wherein said first stripline segment is generally U-shaped.
Claim 4
Dependent Claim
10 words
The balun of claim 1 comprising a surface mountable package.
Claim 5
Dependent Claim
15 words
The balun of claim 1 wherein said second and third stripline segments are substantially coplanar.
Claim 6
Dependent Claim
31 words
The balun of claim 1 wherein said first stripline segment is disposed in a plane generally parallel to and spaced apart from a plane containing the second and third stripline segments.
Claim 7
Dependent Claim
240 words
A surface mount balun comprising: a) a first layer of dielectric material; b) a first ground plane formed on a first surface of said first layer; c) a second layer of dielectric material having a first surface and a second surface; d) a third layer of dielectric material having a second ground plane formed thereon; e) a first stripline segment having a first end connected to a first port and a second end connected to a second port, said first stripline segment formed on said second surface of said first layer of dielectric material; f) a second stripline segment having a third and a fourth end, and a third stripline segment having a fifth and a sixth end, both of said second and third stripline segments formed on said first surface of said third layer of dielectric material; g) wherein said first stripline segment has a first end connected to a first port, said first port disposed on an edge of the surface mount balun, and wherein said first stripline segment has a second end connected to a second port, said second port disposed on the edge of the surface mount balun; h) wherein sixth end is connected to a third port, said third port disposed on the edge of the surface mount balun; and i) wherein said third end, fourth end and fifth end are each electrically connected to at least one of said first and second ground planes.
Claim 8
Dependent Claim
240 words
A surface mount balun comprising: a) a first layer of dielectric material; b) a first ground plane formed on a first surface of said first layer; c) a second layer of dielectric material having a first surface and a second surface; d) a third layer of dielectric material having a second ground plane formed thereon; e) a first stripline segment having a first end connected to a first port and a second end connected to a second port, said first stripline segment formed on said second surface of said first layer of dielectric material; f) a second stripline segment having a third and a fourth end, and a third stripline segment having a fifth and a sixth end, both of said second and third stripline segments formed on said first surface of said third layer of dielectric material; g) wherein said first stripline segment has a first end connected to a first port, said first port disposed on an edge of the surface mount balun, and wherein said first stripline segment has a second end connected to a second port, said second port disposed on the edge of the surface mount balun; h) wherein sixth end is connected to a third port, said third port disposed on the edge of the surface mount balun; and i) wherein said third end, fourth end and fifth end are each electrically connected to at least one of said first and second ground planes.
Claim 9
Dependent Claim
13 words
The balun of claim 6 wherein said first stripline segment is generally U-shaped.
Claim 10
Dependent Claim
10 words
The balun of claim 6 comprising a surface mountable package.
Claim 11
Dependent Claim
15 words
The balun of claim 6 wherein said second and third stripline segments are substantially coplanar.
Claim 12
Dependent Claim
31 words
The balun of claim 6 wherein said first stripline segment is disposed in a plane generally parallel to and spaced apart from a plane containing the second and third stripline segments.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-09-24 | 2005-03-26 | 2005-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-09-24 | 2009-03-26 | 2009-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-09-24 | 2013-03-26 | 2013-09-25 | $7700.00 | Window Closed / Lapsed |