US4189684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave power combiner
Assignee: Raytheon Co
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Filing: 1978-11-02
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Granted: 1980-02-19
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Expires: 1998-11-02
Abstract
Abstract A microwave power combiner is shown to consist of a plurality of coaxial diode oscillators disposed on the periphery of a circularly cylindrical cavity operating in the TM 020 mode, such cavity containing mode suppressor means to prevent any mode other than the TM 020 from operating.
Inventors
- 👤 Allen L. Hieber
- 👤 Clifford A. Drubin
- 👤 George Jerinic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:28
CPC Classifications
H; H03; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/143
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
53 words
A microwave power combiner comprising: (a) a cylindrical cavity dimensioned to operate in the TM 020 mode; (b) means disposed within such cavity to suppress modes other than the TM 020 mode; and (c) a plurality of coaxial diode oscillators disposed on the periphery of the cylindrical cavity in a coupling relationship thereto.
Claim 2
Dependent Claim
53 words
A microwave power combiner comprising: (a) a cylindrical cavity dimensioned to operate in the TM 020 mode; (b) means disposed within such cavity to suppress modes other than the TM 020 mode; and (c) a plurality of coaxial diode oscillators disposed on the periphery of the cylindrical cavity in a coupling relationship thereto.
Claim 3
Dependent Claim
34 words
A microwave power combiner as in claim 1 wherein the mode suppression means includes a hollow cylindrical member disposed within the cylindrical cavity and coaxially therewith, such member being fabricated from a dielectric material.
Claim 4
Dependent Claim
14 words
A microwave power combiner as in claim 2 wherein the dielectric material is alumina.
Claim 5
Dependent Claim
42 words
A microwave power combiner as in claim 3 wherein the outer and inner radii of the hollow cylindrical member are equal, respectively, to r/2+a and r/2-a, where "r" is the radius of the cylindrical cavity and "a" is an empirically determined dimension.
Claim 6
Dependent Claim
48 words
A microwave power combiner as in claim 4 wherein the mode suppression means includes, additionally, a radially extending slot formed in one end wall of the cylindrical cavity between each successive pair of coaxial diode oscillators, each such slot being partially filled with an absorber of microwave energy.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-02-18 | 1983-08-20 | 1984-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-02-18 | 1987-08-20 | 1988-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-02-18 | 1991-08-20 | 1992-02-19 | $7700.00 | Window Closed / Lapsed |