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US3636479A
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US
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Microwave strip transmission line circulator
Assignee: MICROWAVE ASSOCIATES WEST Inc
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Filing: 1970-08-19
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Granted: 1972-01-18
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Expires: 1990-08-19
Abstract
Abstract A microwave strip transmission line circulator is disclosed comprising at least one body of ferrite material, a ground plane member overlaying one surface of the ferrite body, and a conductive disk overlaying another surface of the ferrite body. At least three strip transmission line conductors extend radially from the periphery of the conductive disk with the axes of the transmission line conductors defining equal angles. The conductive disk has at least three sets of indentations with each set comprising two convergent indentations extending from the periphery of the disk to two juxtaposed lines located substantially equidistant from and along opposite sides of one of said axes. Means are also provided for magnetizing the body of ferrite material.
Inventors
- 👤 Norman Hartz
- 👤 Bruce K Horne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:39
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/32; H01P1/38; H01P1/383; H01P1/387
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
114 words
A microwave strip transmission line circulator comprising at least one body of ferrite material; a ground plane member overlaying one surface of said ferrite body; a conductive disk overlaying another surface of said ferrite body; at least three strip transmission line conductors extending radially from the periphery of said conductive disk with the axes of said transmission line conductors defining equal angles; said conductive disk having at least three sets of indentations with each of said sets comprising two convergent indentations extending from the periphery of said disk to two juxtaposed lines located substantially equidistant from and along opposite sides of one of said axes; and means for magnetizing said body of ferrite material.
Claim 2
Dependent Claim
114 words
A microwave strip transmission line circulator comprising at least one body of ferrite material; a ground plane member overlaying one surface of said ferrite body; a conductive disk overlaying another surface of said ferrite body; at least three strip transmission line conductors extending radially from the periphery of said conductive disk with the axes of said transmission line conductors defining equal angles; said conductive disk having at least three sets of indentations with each of said sets comprising two convergent indentations extending from the periphery of said disk to two juxtaposed lines located substantially equidistant from and along opposite sides of one of said axes; and means for magnetizing said body of ferrite material.
Claim 3
Dependent Claim
26 words
A microwave strip transmission line circulator in accordance with claim 1 wherein each of said indentations is V-shaped and comprises two communicating legs of unequal length.
Claim 4
Dependent Claim
32 words
A microwave strip transmission line circulator in accordance with claim 1 wherein said body of ferrite material is cylindrical and wherein said conductive disk overlays said ferrite body in coaxial relationship thereto.
Claim 5
Dependent Claim
50 words
A microwave strip transmission line circulator in accordance with claim 3 wherein the radius of said cylindrical body of ferrite material is at least as large as the radius of the circlE defined by the closest points to the center of said disk to which each of said indentations extends.
Claim 6
Dependent Claim
33 words
A microwave strip transmission line circulator in accordance with claim 3 wherein the radius of said cylindrical body of ferrite material is as least as large as the radius of said conductive disk.
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) | 1975-01-17 | 1975-07-19 | 1976-01-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-17 | 1979-07-19 | 1980-01-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-17 | 1983-07-19 | 1984-01-18 | $7700.00 | Window Closed / Lapsed |