US5206611A
Expired / Lapsed
US
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N-way microwave power divider
Assignee: Krytar Inc
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Filing: 1992-03-12
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Granted: 1993-04-27
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Expires: 2012-03-12
Abstract
Abstract A power divider formed by the interconnection of an input resistive network and a transmission line network for dividing a signal received on an input port into N output ports. Four embodiments are described. Three are two-way power dividers and one is a three-way power divider. A 2-way equal division power divider comprises an outer conductor 51 which has a generally rectangular cross section and is filled with a lower dielectric sheet, a center dielectric sheet and an upper dielectric sheet. The dielectric sheets are made of low loss material. Inner conductors are photo-etched from a conducting material that has been deposited or laminated to both surfaces of the center dielectric sheet. Two conductors are spaced a maximum distance from each other at their outputs and are in close proximity to each other at their inputs. Two resistors are connected respectively from the conductor inputs to a power divider input. Another form of two-way equal division power divider, a two-way unequal division power divider, and a three-way equal division power divider are also described.
Inventors
- 👤 Thomas J. Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:13
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
164 words
A microwave N-way power divider, where N is an integer greater than 1, comprising: a transmission line network having N substantially uncoupled output ports, and N transmission lines, with each transmission line having an input end, and an output end connected to a corresponding one of said N output ports, said transmission lines being significantly coupled together at said input ends and providing a low reflection transformation from said output ports to said input ends; and an input network having an input port for receiving microwave frequency energy within a band of frequencies from a source, and N signal paths coupling said input port to said input ends of said N transmission lines, said input network including at least N-1 resistors, with each of said N-1 resistors having an end connected to a different one of said input ends of said transmission lines, and said input network providing a low reflection termination for all signals incident from said input ends of said transmission lines.
Claim 2
Dependent Claim
164 words
A microwave N-way power divider, where N is an integer greater than 1, comprising: a transmission line network having N substantially uncoupled output ports, and N transmission lines, with each transmission line having an input end, and an output end connected to a corresponding one of said N output ports, said transmission lines being significantly coupled together at said input ends and providing a low reflection transformation from said output ports to said input ends; and an input network having an input port for receiving microwave frequency energy within a band of frequencies from a source, and N signal paths coupling said input port to said input ends of said N transmission lines, said input network including at least N-1 resistors, with each of said N-1 resistors having an end connected to a different one of said input ends of said transmission lines, and said input network providing a low reflection termination for all signals incident from said input ends of said transmission lines.
Claim 3
Dependent Claim
16 words
A power divider according to claim 1 wherein said N transmission lines have a homogeneous dielectric.
Claim 4
Dependent Claim
27 words
A power divider according to claim 1 wherein the cross section of said N transmission lines varies in a continuous manner from output ends to input ends.
Claim 5
Dependent Claim
16 words
A power divider according to claim 1 wherein said N transmission lines are spaced apart equally.
Claim 6
Dependent Claim
28 words
A power divider according to claim 1 wherein said at least N-1 resistors are in series between said input port and said input ends of said transmission lines.
Claim 7
Dependent Claim
17 words
A power divider according to claim 1 wherein said at least N-1 resistors have substantially equal resistances.
Claim 8
Dependent Claim
20 words
A power divider according to claim 1 wherein at least two of said at least N-1 resistors have different values.
Claim 9
Dependent Claim
29 words
A power divider according to claim 1 wherein said input network includes means for directly connecting said input port to said input end of one of said transmission lines.
Claim 10
Dependent Claim
31 words
A power divider according to claim 8 wherein N=2 and a resistor is in series between said input port and said input end of the other one of said transmission lines.
Claim 11
Dependent Claim
31 words
A power divider according to claim 9 wherein said input network includes a second resistor that couples said input end of the other of said transmission lines to a reference potential.
Claim 12
Dependent Claim
15 words
A power divider according to claim 9 wherein N=2 and said transmission lines are asymmetrical.
Claim 13
Dependent Claim
16 words
A power divider according to claim 1 wherein said input network includes N of said resistors.
Claim 14
Dependent Claim
31 words
A power divider according to claim 12 wherein each of said N resistors is in series between said input port and a respective input end of one of said transmission lines.
Claim 15
Dependent Claim
15 words
A power divider according to claim 13 wherein N=2 and the transmission lines are asymmetrical.
Claim 16
Dependent Claim
170 words
A microwave N-way power divider, where N is an integer greater than 1, consisting of: a transmission line network consisting of N substantially uncoupled output ports, and N transmission lines, with each transmission line having an input end, and an output end connected to a corresponding one of said N output ports, said transmission lines being significantly coupled together at said input ends and providing a low reflection transformation from said output ports to said input ends; and an input network consisting of an input port for receiving microwave frequency energy within a band of frequencies from a source, and N signal paths coupling said input port to said input ends of said N transmission lines, with at least N-1 of said N signal paths each consisting of a resistor connected in series between said input port and a different one of said input ends of said transmission lines, said input network providing a low reflection termination for all signals incident from said N input ends of said transmission lines.
Claim 17
Dependent Claim
170 words
A microwave N-way power divider, where N is an integer greater than 1, consisting of: a transmission line network consisting of N substantially uncoupled output ports, and N transmission lines, with each transmission line having an input end, and an output end connected to a corresponding one of said N output ports, said transmission lines being significantly coupled together at said input ends and providing a low reflection transformation from said output ports to said input ends; and an input network consisting of an input port for receiving microwave frequency energy within a band of frequencies from a source, and N signal paths coupling said input port to said input ends of said N transmission lines, with at least N-1 of said N signal paths each consisting of a resistor connected in series between said input port and a different one of said input ends of said transmission lines, said input network providing a low reflection termination for all signals incident from said N input ends of said transmission lines.
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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) | 1996-04-26 | 1996-10-26 | 1997-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-26 | 2000-10-26 | 2001-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-26 | 2004-10-26 | 2005-04-27 | $7700.00 | Window Closed / Lapsed |