US3777284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directional phase-shifting coupler
Assignee: United States Department of the Navy
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Filing: 1972-03-27
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Granted: 1973-12-04
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Expires: 1992-03-27
Abstract
Abstract A coupling technique for selectively obtaining, within limits, any amplitude and phase relationship between the coupled and through ports of a stripline coupler.
Inventors
- 👤 R Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:10
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/18; H01P5/184; H01P5/185
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
153 words
A coupler having first and second substantially parallel, electrically conductive lines including at least one portion in which the lines are in close proximity to one another: comprising a first line having first and second ports wherein said first port is the coupler input port and said second port is the through port; a second line having first and second ports wherein said first port is the coupled port; and means for preselecting the phase relationship of the output signal at said coupled port to the output signal at said through port, wherein any value chosen from the range of values 0 to 2 pi radians, inclusively, may be preselected as the phase relationship, and for preselecting the amplitude relationship of the output signal at said coupled port to the output signal at said through port, wherein no energy is transferred from said input port to the second port of said second line.
Claim 2
Dependent Claim
153 words
A coupler having first and second substantially parallel, electrically conductive lines including at least one portion in which the lines are in close proximity to one another: comprising a first line having first and second ports wherein said first port is the coupler input port and said second port is the through port; a second line having first and second ports wherein said first port is the coupled port; and means for preselecting the phase relationship of the output signal at said coupled port to the output signal at said through port, wherein any value chosen from the range of values 0 to 2 pi radians, inclusively, may be preselected as the phase relationship, and for preselecting the amplitude relationship of the output signal at said coupled port to the output signal at said through port, wherein no energy is transferred from said input port to the second port of said second line.
Claim 3
Dependent Claim
35 words
The coupler of claim 1 wherein said first and second lines are substantially in parallel planes and cross within said at least one portion in which the lines are in close proximity to one another.
Claim 4
Dependent Claim
13 words
The coupler of claim 1 wherein said first and second lines are tapered.
Claim 5
Dependent Claim
34 words
The coupler of claim 1 wherein said first and second lines consist of a plurality of abutting sections, and adjacent sections are offset, such that a step is formed where two adjacent sections abut.
Claim 6
Dependent Claim
173 words
A coupler having first and second substantially parallel, electrically conductive lines including at least one portion in which the lines are in close proximity to one another: comprising a first line having first and second ports wherein said first port is the coupler input port and said second port is the through port; a second line having first and second ports wherein said first port is the coupled port; and means for preselecting the phase relationship of the output signal at said coupled port to the output signal at said through port, wherein any value chosen from the range of values 0 to 2 pi radians, inclusively, may be preselected as the phase rElationship, and for preselecting the amplitude relationship of the output signal at said coupled port to the output signal at said through port, wherein no energy is transferred from said input port to the second port of said second line; wherein said first line and said second line are each unsymmetrical around their mid-point within said at least one portion.
Claim 7
Dependent Claim
173 words
A coupler having first and second substantially parallel, electrically conductive lines including at least one portion in which the lines are in close proximity to one another: comprising a first line having first and second ports wherein said first port is the coupler input port and said second port is the through port; a second line having first and second ports wherein said first port is the coupled port; and means for preselecting the phase relationship of the output signal at said coupled port to the output signal at said through port, wherein any value chosen from the range of values 0 to 2 pi radians, inclusively, may be preselected as the phase rElationship, and for preselecting the amplitude relationship of the output signal at said coupled port to the output signal at said through port, wherein no energy is transferred from said input port to the second port of said second line; wherein said first line and said second line are each unsymmetrical around their mid-point within said at least one portion.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |