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US3596210A
Expired / Lapsed
US
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N-input aperiodic hybrid coupler
Assignee: Thales SA
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Filing: 1969-07-02
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Granted: 1971-07-27
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Expires: 1989-07-02
Abstract
Abstract An aperiodic coupler having any number of inputs and comprising the same number of two-wire lines, each associated with a high permeability magnetic core. Its insertion loss is negligible and it has substantial decoupling between any two inputs.
Inventors
- 👤 Alberto Pimentel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:10
CPC Classifications
H; H03; H03H; H03H7/00; H03H7/48; H03H7/487
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
179 words
An aperiodic hybrid coupler for coupling together a number n, greater than two, of first energy providing or receiving terminals with one energy receiving or providing terminal, said coupler comprising: n pairs of conductors having a length substantially below the shortest operating wavelength of said coupler, each pair comprising a first conductor having first and second ends and a second conductor having first and second ends, the first ends of said first conductors being respectively coupled to said n first terminals, the first ends of said second conductors being coupled to said one terminal, magnetic means for ensuring symmetry of the currents in the two conductors of each of said pairs of conductors, and a resistance network having n terminals and comprising n resistors, said n network terminals being on the one hand respectively coupled to said second ends of said n first conductors and on the other hand respectively coupled to said second Ends of said n second conductors, each of said network terminals being coupled to the second ends of two conductors belonging to two different pairs.
Claim 2
Dependent Claim
179 words
An aperiodic hybrid coupler for coupling together a number n, greater than two, of first energy providing or receiving terminals with one energy receiving or providing terminal, said coupler comprising: n pairs of conductors having a length substantially below the shortest operating wavelength of said coupler, each pair comprising a first conductor having first and second ends and a second conductor having first and second ends, the first ends of said first conductors being respectively coupled to said n first terminals, the first ends of said second conductors being coupled to said one terminal, magnetic means for ensuring symmetry of the currents in the two conductors of each of said pairs of conductors, and a resistance network having n terminals and comprising n resistors, said n network terminals being on the one hand respectively coupled to said second ends of said n first conductors and on the other hand respectively coupled to said second Ends of said n second conductors, each of said network terminals being coupled to the second ends of two conductors belonging to two different pairs.
Claim 3
Dependent Claim
13 words
A coupler as claimed in claim 1, wherein said resistors are star connected.
Claim 4
Dependent Claim
19 words
A coupler as claimed in claim 1, wherein said resistors are connected in series and form a closed circuit.
Claim 5
Dependent Claim
70 words
A coupler as claimed in claim 2, wherein each of said n first terminals are connected respectively to an energy providing or receiving device and said one terminal to an energy receiving or providing device, said n energy providing or receiving devices having an identical impedance equivalent to a resistance R, said receiving or providing device having an impedance equal to (R/n), said resistors having a value equal to (R(n-1)/n).
Claim 6
Dependent Claim
69 words
A coupler as claimed in claim 3, wherein each of said n first terminals are connected respectively to an energy providing or receiving device and said one terminal to an energy receiving or providing device, said n energy providing or receiving device having an identical impedance equivalent to resistance R, said receiving or providing device having an impedance equal to R/n, said resistors having a value equal to R.
Claim 7
Dependent Claim
21 words
A coupler as claimed in claim 1, wherein said magnetic means are n sheaths respectively surrounding said n pairs of conductors.
Claim 8
Dependent Claim
25 words
A coupler as claimed in claim 1, wherein said magnetic means comprise n toroidal cores on which said n pairs of conductors are respectively wound.
Claim 9
Dependent Claim
25 words
A coupler as claim in claim 7, wherein said magnetic means comprise a single toroidal core on which said n pairs of conductors are wound.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-26 | 1975-01-25 | 1975-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-26 | 1979-01-25 | 1979-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-26 | 1983-01-25 | 1983-07-27 | $7700.00 | Window Closed / Lapsed |