Patent US3593192A successfully refreshed from Google Patents.
US3593192A
Expired / Lapsed
US
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Double cavity type solid state oscillator device
Assignee: NEC Corp
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Filing: 1969-07-29
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Granted: 1971-07-13
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Expires: 1989-07-29
Abstract
Abstract A double cavity type oscillator device is provided wherein a throttle window and iris are disposed between a main cavity having a built-in solid state oscillator element and an auxiliary cavity. The window electromagnetically couples the tunable auxiliary cavity with the main cavity. The iris, which is a low impedance capacitive iris, has a lateral width approximately equal to that of the end portion of the throttle window and to that of the auxiliary cavity, and a vertical dimension smaller than that of said throttle window.
Inventors
- 👤 Shigemichi Nagano
- 👤 Tsutomu Itano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:58
CPC Classifications
H; H03; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/145; H03B2009/126
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A double cavity type solid state oscillator device having a main and an auxiliary cavity; a throttle hole communicating with said main cavity and having an axis substantially perpendicular to the axis of said main cavity; a solid state oscillation element mounted within said main cavity; a resonant frequency adjusting member disposed within said auxiliary cavity; an iris disposed between said throttle hole and said auxiliary cavity for providing electromagnetic coupling between said main and auxiliary cavities, the aperture of said iris, measured in the direction of the axis of said main cavity, being not greater than that of said throttle hole; and at least one metal piece mounted on said iris at said aperture in a direction parallel to the plane of said iris.
Claim 2
Dependent Claim
125 words
A double cavity type solid state oscillator device having a main and an auxiliary cavity; a throttle hole communicating with said main cavity and having an axis substantially perpendicular to the axis of said main cavity; a solid state oscillation element mounted within said main cavity; a resonant frequency adjusting member disposed within said auxiliary cavity; an iris disposed between said throttle hole and said auxiliary cavity for providing electromagnetic coupling between said main and auxiliary cavities, the aperture of said iris, measured in the direction of the axis of said main cavity, being not greater than that of said throttle hole; and at least one metal piece mounted on said iris at said aperture in a direction parallel to the plane of said iris.
Claim 3
Dependent Claim
174 words
A double cavity type solid state oscillator device comprising: a block of conductive material including a main cavity, a throttle hole communicating with said main cavity and having an axis substantially perpendicular to the axis of said main cavity; a solid state oscillation element having first and second electrodes disposed within said main cavity and having one of its said electrodes in direct contact with said block; means for supporting said oscillation element and for connecting the other of said electrodes to a power supply for oscillation; an auxiliary cavity in said block having an opening at its end facing said main cavity; an adjustment rod in said auxiliary cavity for changing the resonant frequency thereof; an iris interposed between said throttle hole and said auxiliary cavity providing electromagnetic coupling between said main and auxiliary cavities, the aperture of said iris having a dimension smaller than that of said opening of said throttle hole in the direction of the axis of said main cavity; and at least one metal piece protruding within said aperture.
Claim 4
Dependent Claim
174 words
A double cavity type solid state oscillator device comprising: a block of conductive material including a main cavity, a throttle hole communicating with said main cavity and having an axis substantially perpendicular to the axis of said main cavity; a solid state oscillation element having first and second electrodes disposed within said main cavity and having one of its said electrodes in direct contact with said block; means for supporting said oscillation element and for connecting the other of said electrodes to a power supply for oscillation; an auxiliary cavity in said block having an opening at its end facing said main cavity; an adjustment rod in said auxiliary cavity for changing the resonant frequency thereof; an iris interposed between said throttle hole and said auxiliary cavity providing electromagnetic coupling between said main and auxiliary cavities, the aperture of said iris having a dimension smaller than that of said opening of said throttle hole in the direction of the axis of said main cavity; and at least one metal piece protruding within said aperture.
Claim 5
Dependent Claim
61 words
The double cavity type solid state oscillator device claimed in claim 2, in which said throttle hole increases in cross section from said main cavity to said aperture of said iris in the direction perpendicular to the axis of said main cavity, and having a final dimension approximately equal to the dimension of the aperture in said iris in said direction.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |