US4053897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave element including source antenna and cavity portions
Assignee: Honeywell Inc
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Filing: 1976-10-14
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Granted: 1977-10-11
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Expires: 1996-10-14
Abstract
Abstract A microwave element is disclosed that is fabricated from a dielectric material wherein the antenna, the iris, and a microwave cavity portion are formed generally from a single piece of relatively high dielectric constant material. The microwave cavity portion is converted into an actual microwave resonant cavity by covering the microwave cavity portion with a conductive material.
Inventors
- 👤 Eldon Nerheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:43
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/20; H01Q13/24
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
143 words
A microwave element, including: dielectric means including an antenna portion, an iris formed as a reduced cross section in said dielectric means, and a microwave cavity portion; said antenna portion of said dielectric means having a reduced cross section opposite said iris with said reduced cross section terminating in a continuously diminishing configuration; said microwave cavity portion being covered with a conductive material to create microwave resonant cavity means; said microwave cavity means further including an opening midway between an effective first wall portion adjacent said iris and a cavity wall portion opposite said first wall portion; and surface means defining said opening with said surface means adapted to receive microwave energy generator means in said opening for the generation of microwave energy in said cavity means that is propagated through said iris and radiated from said antenna portion of said microwave element.
Claim 2
Dependent Claim
143 words
A microwave element, including: dielectric means including an antenna portion, an iris formed as a reduced cross section in said dielectric means, and a microwave cavity portion; said antenna portion of said dielectric means having a reduced cross section opposite said iris with said reduced cross section terminating in a continuously diminishing configuration; said microwave cavity portion being covered with a conductive material to create microwave resonant cavity means; said microwave cavity means further including an opening midway between an effective first wall portion adjacent said iris and a cavity wall portion opposite said first wall portion; and surface means defining said opening with said surface means adapted to receive microwave energy generator means in said opening for the generation of microwave energy in said cavity means that is propagated through said iris and radiated from said antenna portion of said microwave element.
Claim 3
Dependent Claim
18 words
A microwave element as described in claim 1 wherein said dielectric means is formed of solid dielectric material.
Claim 4
Dependent Claim
18 words
A microwave element as described in claim 2 wherein said dielectric material is a unitary, monolithic dielectric material.
Claim 5
Dependent Claim
24 words
A microwave element as described in claim 3 wherein said monolithic dielectric material is a flat dielectric material having a generally rectangular cross section.
Claim 6
Dependent Claim
42 words
A microwave element as described in claim 4 wherein said conductive material that covers said microwave cavity portion is a thin coating which relies solely upon said microwave cavity portion of said dielectric material for the mechanical support of said conductive material.
Claim 7
Dependent Claim
38 words
A microwave element as described in claim 5 wherein said reduced cross section of said antenna portion includes a tapered configuration which diminishes to an edge with a height equal to the thickness of said flat dielectric material.
Claim 8
Dependent Claim
30 words
A microwave element as described in claim 6 wherein said iris is formed by providing a hole through said dielectric material to reduce the cross section of said dielectric material.
Claim 9
Dependent Claim
35 words
A microwave element as described in claim 6 wherein said iris is formed by providing slot means through said dielectric material between said antenna portion and said cavity portion to provide said reduced cross section.
Claim 10
Dependent Claim
40 words
A microwave element as described in claim 6 wherein said iris is formed by said slot means being a pair of slots through said dielectric material between said antenna portion and said cavity portion to provide said reduced cross section.
Claim 11
Dependent Claim
14 words
A microwave element as described in claim 9 wherein said slots are symmetrically dimensioned.
Claim 12
Dependent Claim
17 words
A microwave element as described in claim 10 wherein said microwave cavity means is annular in shape.
Claim 13
Dependent Claim
44 words
A microwave element as described in claim 1 wherein said microwave cavity means includes a second opening in said cavity means with said second opening having surface means adapted to receive modulation signal means for the introduction of modulation energy into said cavity means.
Claim 14
Dependent Claim
28 words
A microwave element as described in claim 12 wherein said second opening is located between said first opening and said cavity wall portion opposite said first wall portion.
Claim 15
Dependent Claim
44 words
A microwave element as described in claim 7 wherein said microwave cavity means includes a second opening in said cavity means with said second opening having surface means adapted to receive modulation signal means for the introduction of modulation energy into said cavity means.
Claim 16
Dependent Claim
44 words
A microwave element as described in claim 8 wherein said microwave cavity means includes a second opening in said cavity means with said second opening having surface means adapted to receive modulation signal means for the introduction of modulation energy into said cavity means.
References Cited (Backward Citations)
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Cited
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US3778717A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-10 | 1981-04-11 | 1981-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-10 | 1985-04-11 | 1985-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-10 | 1989-04-11 | 1989-10-11 | $7700.00 | Window Closed / Lapsed |