Patent US3619787A successfully refreshed from Google Patents.
US3619787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave hybrid wheel
Assignee: Individual
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Filing: 1970-05-14
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Granted: 1971-11-09
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Expires: 1990-05-14
Abstract
Abstract A microwave hybrid ring in modified coaxial line in which the inner conductor is the rim of a wheel mechanically fixedly mounted and electrically grounded at its geometrical center. The electrical grounding at the center may be at the design frequency through a choke.
Inventors
- 👤 Edward Salzberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:02
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16; H01P5/19; H01P5/22; H01P5/222; H03; H03D; H03D9/00; H03D9/06; H03D9/0608
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
142 words
A hybriD ring directional coupler in modified coaxial line comprising: a. A metal housing structure containing a cylindrical cavity and forming the walls thereof; b. a circular conductive element positioned concentrically in said cavity having a rim substantially one and one-half wavelengths long at the design frequency of said coupler, said rim acting as the center conductor of said line; c. means to mount said element to said housing at the geometrical center of said element providing both mechanical and electrical connection; d. four coaxial terminal connections mounted in said housing with their center terminal leads electrically connected to said rim at 60* intervals around said rim and their outer conductors electrically continuous with said walls whereby said geometrical center is approximately one-fourth wavelength from each terminal connection at said rim and appears as an electrical insulator at said each terminal connection.
Claim 2
Dependent Claim
142 words
A hybriD ring directional coupler in modified coaxial line comprising: a. A metal housing structure containing a cylindrical cavity and forming the walls thereof; b. a circular conductive element positioned concentrically in said cavity having a rim substantially one and one-half wavelengths long at the design frequency of said coupler, said rim acting as the center conductor of said line; c. means to mount said element to said housing at the geometrical center of said element providing both mechanical and electrical connection; d. four coaxial terminal connections mounted in said housing with their center terminal leads electrically connected to said rim at 60* intervals around said rim and their outer conductors electrically continuous with said walls whereby said geometrical center is approximately one-fourth wavelength from each terminal connection at said rim and appears as an electrical insulator at said each terminal connection.
Claim 3
Dependent Claim
62 words
A hybrid ring according to claim 1 wherein said element is in the form of a fixed wheel having a rim, spokes positioned at 60* intervals matching at least said each terminal connection and a hub, said means to mount comprising said hub and fastening means for securing said hub rigidly to said housing at at least the bottom of said cavity.
Claim 4
Dependent Claim
30 words
A hybrid ring according to claim 1 wherein said element is a solid disk connected to said housing at its center and spaced from said housing at all other points.
Claim 5
Dependent Claim
43 words
A hybrid ring according to claim 1 wherein said means to mount comprises electrical insulating material and said electrical connection is through a quarter wave section RF choke whereby said element is centrally grounded only at the design frequency band of said coupler.
Claim 6
Dependent Claim
26 words
A hybrid ring according to claim 4 wherein said coupler is connected as a balanced mixer with the if signal terminal connected at said RF choke.
Claim 7
Dependent Claim
19 words
A hybrid ring according to claim 1 wherein said center terminal leads are directly conductively connected to said rim.
Claim 8
Dependent Claim
16 words
A hybrid ring according to claim 1 wherein said electrical connection is a direct conductive connection.
Claim 9
Dependent Claim
37 words
A hybrid ring according to claim 1 wherein said means to mount comprises conductive cover means for said cavity and means to secure said element both at the bottom of said cavity and at said cover means.
Claim 10
Dependent Claim
22 words
A hybrid ring according to claim 1 further comprising quarter wave RF choke coupling of said center terminal leads to said rim.
Claim 11
Dependent Claim
88 words
A hybrid ring coupler operational over a broad spectrum centered at a predetermined design frequency comprising: a. A circular electrically conductive element having a circumference substantially equal to one and one-half wavelengths at the design frequency; b. An electrical conductor concentric about said element and separated therefrom by an electrically insulating medium; c. connection means at the geometrical center of said element providing direct mechanical and electrical connection to said conductor; and, d. means to provide terminal connections to said element at four 60* intervals about its perimeter.
Claim 12
Dependent Claim
88 words
A hybrid ring coupler operational over a broad spectrum centered at a predetermined design frequency comprising: a. A circular electrically conductive element having a circumference substantially equal to one and one-half wavelengths at the design frequency; b. An electrical conductor concentric about said element and separated therefrom by an electrically insulating medium; c. connection means at the geometrical center of said element providing direct mechanical and electrical connection to said conductor; and, d. means to provide terminal connections to said element at four 60* intervals about its perimeter.
Claim 13
Dependent Claim
47 words
A hybrid ring coupler according to claim 10 wherein said electrical conductor is a housing structure forming a cylindrical cavity, said element is positioned centrally in said cavity and said connection means is hub mounting means mounting said element to top and bottom walls of said structure.
References Cited (Backward Citations)
GB702568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-08 | 1975-05-10 | 1975-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-08 | 1979-05-10 | 1979-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-08 | 1983-05-10 | 1983-11-09 | $7700.00 | Window Closed / Lapsed |