US5828273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phase splitter for high data rate communication
Assignee: General Electric Co
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Filing: 1996-06-20
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Granted: 1998-10-27
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Expires: 2016-06-20
Abstract
Abstract A phase splitter includes an input port coupled to receive a modulated carrier having a relatively wide bandwidth and has first and second output ports for supplying, respectively, first and second modulated carrier constituents having a uniform phase angle differential, such as 180°, between one another while maintaining a uniform amplitude over the bandwidth for the modulated carrier. A transmission line comprised of one or more individual segments includes first and second conductors respectively coupled to the output ports of the phase splitter to receive the first and second modulated carrier constituents from the phase splitter. A coupler is positioned sufficiently near the transmission line to receive the first and second modulated carrier constituents being applied to any of the individual segments.
Inventors
- 👤 Daniel David Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:51
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/56; Y; Y10; Y10S; Y10S378/00; Y10S378/901
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
210 words
A phase splitter having an input port coupled to receive a modulated carrier having a predetermined bandwidth, said phase splitter having first and second output ports for supplying, respectively, first and second modulated carrier constituents having a substantially uniform 180° phase angle differential between one another while maintaining a substantially uniform amplitude over said bandwidth, said phase splitter comprising: a first transmission line coupled between said input port and said first output port for supplying a respective output signal having a phase angle substantially in-phase with respect to the modulated carrier, the output signal supplied by said first transmission line constituting the first modulated carrier constituent supplied by said phase splitter; and a second transmission line coupled between said input port and an electrical ground, said second transmission line including reversing means coupled to the second output port for supplying a respective output signal having a phase angle substantially 180° out-of-phase with respect to the modulated carrier and providing a predetermined level of inductance that effectively allows said reversing means to impart the substantially 180° phase angle without electrically shorting the output signal supplied by said second transmission line, wherein the output signal supplied by said second transmission line constitutes the second modulated carrier constituent supplied by said phase splitter.
Claim 2
Dependent Claim
210 words
A phase splitter having an input port coupled to receive a modulated carrier having a predetermined bandwidth, said phase splitter having first and second output ports for supplying, respectively, first and second modulated carrier constituents having a substantially uniform 180° phase angle differential between one another while maintaining a substantially uniform amplitude over said bandwidth, said phase splitter comprising: a first transmission line coupled between said input port and said first output port for supplying a respective output signal having a phase angle substantially in-phase with respect to the modulated carrier, the output signal supplied by said first transmission line constituting the first modulated carrier constituent supplied by said phase splitter; and a second transmission line coupled between said input port and an electrical ground, said second transmission line including reversing means coupled to the second output port for supplying a respective output signal having a phase angle substantially 180° out-of-phase with respect to the modulated carrier and providing a predetermined level of inductance that effectively allows said reversing means to impart the substantially 180° phase angle without electrically shorting the output signal supplied by said second transmission line, wherein the output signal supplied by said second transmission line constitutes the second modulated carrier constituent supplied by said phase splitter.
Claim 3
Dependent Claim
22 words
The phase splitter of claim 1 further comprising a compensating coil coupled between said first output port and said predetermined electrical ground.
Claim 4
Dependent Claim
29 words
The phase splitter of claim 1 wherein said first and second transmission lines each comprises a respective coaxial line having a substantially similar electrical length relative to one another.
Claim 5
Dependent Claim
24 words
The phase splitter of claim 3 wherein each of said coaxial lines comprises a flexible coaxial line wound to form a substantially cylindrical winding.
Claim 6
Dependent Claim
59 words
The phase splitter of claim 3 wherein said reversing means comprises the outer shield and the center conductor of the coaxial line for said second transmission line, said center conductor being connected to said predetermined electrical ground while said outer shield is connected to the second output port of said phase splitter to supply the second modulated carrier constituent.
Claim 7
Dependent Claim
50 words
The phase splitter of claim 1 wherein said first and second transmission lines comprise a first printed-circuit stage including a respective pair of substantially corresponding conductive strips for each of said transmission lines, respective ones of the conductive strip pairs being disposed on mutually opposite surfaces of a first substrate.
Claim 8
Dependent Claim
65 words
The phase splitter of claim 6 wherein said first and second transmission lines further comprise a second printed-circuit stage including a respective pair of substantially corresponding coils for each of said transmission lines, each respective one of the coil pairs being coupled to a respective one of the conductive strips in said first stage and being disposed on mutually opposite surfaces of a second substrate.
Claim 9
Dependent Claim
31 words
The phase splitter of claim 7 wherein each of said mutually opposite surfaces on said second substrate is positioned substantially perpendicular relative to the mutually opposite surfaces on said first substrate.
Claim 10
Dependent Claim
35 words
The phase splitter of claim 6 wherein said reversing means comprises a feedthrough connector adapted to invert signal flow across each respective one of the pair of substantially corresponding strips for said second transmission line.
Claim 11
Dependent Claim
24 words
The phase splitter of claim 9 wherein said first and second transmission lines each has a substantially similar electrical length relative to one another.
Claim 12
Dependent Claim
200 words
A phase splitter having an input port coupled to receive a modulated carrier having a predetermined bandwidth, said phase splitter having first and second output ports for supplying, respectively, first and second modulated carrier constituents having a substantially uniform 180° phase angle differential between one another while maintaining a substantially uniform amplitude over said bandwidth, said phase splitter comprising: a dividing network comprising first and second resistors coupled in parallel to said input port; a first transmission line coupled between said first resistor and said first output port for supplying a respective output signal having a phase angle substantially in-phase with respect to the modulated carrier, the output signal supplied by said first transmission line constituting the first modulated carrier constituent supplied by said phase splitter; and a second transmission line adapted to provide a predetermined level of inductance between said second resistor and a predetermined electrical ground, said second transmission line including reversing means coupled to the second output port for supplying a respective output signal having a phase angle substantially 180° out-of-phase with respect to the modulated carrier, the output signal supplied by said second transmission line constituting the second modulated carrier constituent supplied by said phase splitter.
Claim 13
Dependent Claim
200 words
A phase splitter having an input port coupled to receive a modulated carrier having a predetermined bandwidth, said phase splitter having first and second output ports for supplying, respectively, first and second modulated carrier constituents having a substantially uniform 180° phase angle differential between one another while maintaining a substantially uniform amplitude over said bandwidth, said phase splitter comprising: a dividing network comprising first and second resistors coupled in parallel to said input port; a first transmission line coupled between said first resistor and said first output port for supplying a respective output signal having a phase angle substantially in-phase with respect to the modulated carrier, the output signal supplied by said first transmission line constituting the first modulated carrier constituent supplied by said phase splitter; and a second transmission line adapted to provide a predetermined level of inductance between said second resistor and a predetermined electrical ground, said second transmission line including reversing means coupled to the second output port for supplying a respective output signal having a phase angle substantially 180° out-of-phase with respect to the modulated carrier, the output signal supplied by said second transmission line constituting the second modulated carrier constituent supplied by said phase splitter.
Claim 14
Dependent Claim
21 words
The apparatus of claim 11 further comprising a compensating coil coupled between said first output port and said predetermined electrical ground.
Claim 15
Dependent Claim
28 words
The apparatus of claim 11 wherein said first and second transmission lines each comprises a respective coaxial line having a substantially similar electrical length relative to one another.
Claim 16
Dependent Claim
23 words
The apparatus of claim 13 wherein each of said coaxial lines comprises a flexible coaxial line wound to form a substantially cylindrical winding.
Claim 17
Dependent Claim
58 words
The apparatus of claim 14 wherein said reversing means comprises the outer shield and the center conductor of the coaxial line for said second transmission line, said center conductor being connected to said predetermined electrical ground while said outer shield is connected to the second output port of said phase splitter to supply the second modulated carrier constituent.
Claim 18
Dependent Claim
49 words
The apparatus of claim 1 wherein said first and second transmission lines comprise a first printed-circuit stage including a respective pair of substantially corresponding conductive strips for each of said transmission lines, respective ones of the conductive strip pairs being disposed on mutually opposite surfaces of a first substrate.
Claim 19
Dependent Claim
65 words
The apparatus of claim 16 wherein said first and second transmission lines further comprise a second printed-circuit stage including a respective pair of substantially corresponding coils for each of said transmission lines, each respective one of the coil pairs being coupled to a respective one of the corresponding conductive strips in said first stage and being disposed on mutually opposite surfaces of a second substrate.
Claim 20
Dependent Claim
30 words
The apparatus of claim 17 wherein each of said mutually opposite surfaces on said second substrate is positioned substantially perpendicular relative to the mutually opposite surfaces on said first substrate.
Claim 21
Dependent Claim
35 words
The apparatus of claim 16 wherein said reversing means comprises a feedthrough connector adapted to invert signal flow across each respective one of said another pair of substantially corresponding strips for said second transmission line.
Claim 22
Dependent Claim
23 words
The apparatus of claim 19 wherein said first and second transmission lines each has a substantially similar electrical length relative to one another.
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) | 2001-10-26 | 2002-04-27 | 2002-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-10-26 | 2006-04-27 | 2006-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-10-26 | 2010-04-27 | 2010-10-27 | $7700.00 | Window Closed / Lapsed |