US3878480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Millimeter wave oscillator with a cavity resonator
Assignee: Hughes Missile Systems Co
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Filing: 1973-09-24
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Granted: 1975-04-15
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Expires: 1993-09-24
Abstract
Abstract A millimeter wave oscillator has a case of block construction defining a waveguide passageway with a waveguide flange at the output end integral with the case. A plunger with a half-round surface facing the open end is disposed adjacent a wafer-like disc and a source diode has a terminal which is contacted by the disc. The diode is adjustably disposed in the case. The disc is disposed on the end of a piston slideably disposed in a capacitor body which is coupled to a source of DC bias. A spring in the body urges the disc into contact with the diode. Stubs are provided for impedance matching of the following circuit.
Inventors
- 👤 Garry N Hulderman
- 👤 Leon J Lader
- 👤 Jay B Winderman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 09:16
CPC Classifications
H; H03; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/145; H03B9/146
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
226 words
A millimeter wave oscillator for generating a wave output to be applied to a following circuit comprising: an oscillator case of substantially block construction and defining a longitudinally disposed waveguide passageway open at one end for coupling to said following circuit; closure means disposed in said passageway to close off the other end thereof; semiconductor holder means adjustably disposed in said case for orthogonal movement relative to the longitudinal axis of said waveguide passageway; semiconductor means secured in said holder means, said semiconductor means having at least two electrodes, one of which terminates at a terminal on the exterior of said semiconductor means; disc means having one face coupled to said terminal and disposed for movement with said semiconductor means for matching the impedances of the semiconductor means and the waveguide passageway for various positions of said semiconductor means; piston means movably disposed in said case substantially opposite said holder means, the other face of said disc means being coupled adjacent one end of said piston means, whereby said piston means is adapted for a movement along an axis thereof in following relationship with adjustment movement of said holder means; and resilient biasing means disposed in said case for urging said piston means toward said holder means to maintain direct contact by said one face of said disc means with said terminal of said semiconductor means.
Claim 2
Dependent Claim
226 words
A millimeter wave oscillator for generating a wave output to be applied to a following circuit comprising: an oscillator case of substantially block construction and defining a longitudinally disposed waveguide passageway open at one end for coupling to said following circuit; closure means disposed in said passageway to close off the other end thereof; semiconductor holder means adjustably disposed in said case for orthogonal movement relative to the longitudinal axis of said waveguide passageway; semiconductor means secured in said holder means, said semiconductor means having at least two electrodes, one of which terminates at a terminal on the exterior of said semiconductor means; disc means having one face coupled to said terminal and disposed for movement with said semiconductor means for matching the impedances of the semiconductor means and the waveguide passageway for various positions of said semiconductor means; piston means movably disposed in said case substantially opposite said holder means, the other face of said disc means being coupled adjacent one end of said piston means, whereby said piston means is adapted for a movement along an axis thereof in following relationship with adjustment movement of said holder means; and resilient biasing means disposed in said case for urging said piston means toward said holder means to maintain direct contact by said one face of said disc means with said terminal of said semiconductor means.
Claim 3
Dependent Claim
50 words
The oscillator of claim 1 in which said closure means is provided with a configured surface facing into said passageway, said configured surface together with the walls of said passageway and of said disc forming at least a portion of a high Q cavity resonant at the desired output frequency.
Claim 4
Dependent Claim
54 words
The oscillator of claim 2 in which said closure means comprises plunger means adjustably disposed in said passageway, the said configured surface thereof being substantially half-round and concave, the oscillator further characterized in that said disc means comprises a round wafer-like disc with a diameter of substantially one-half wave-length of the desired output frequency.
Claim 5
Dependent Claim
36 words
The oscillator of claim 1 in which said holder means is threadably disposed in said case for adjustment along an axis of said holder means in a plane substantially normal to the axis of said passageway.
Claim 6
Dependent Claim
66 words
The oscillator of claim 1 in which said case defines a bore having an axis in a plane substantially normal to the axis of said passageway, the oscillator further comprising an elongate conductor body disposed within said case bore and insulated therefrom, said conductor body being provided with a piston bore adapted to accommodate at least a portion of said piston means for slidable movement therewithin.
Claim 7
Dependent Claim
24 words
The oscillator of claim 5 in which said holder means is threadably disposed in said case for adjustment along said axis of said bore.
Claim 8
Dependent Claim
28 words
The oscillator of claim 6 in which said resilient means comprises a compression spring means disposed between the other end of said piston means and said conductor body.
Claim 9
Dependent Claim
23 words
The oscillator of claim 1 in which said oscillator case comprises an integral waveguide flange disposed adjacent said open end of said passageway.
Claim 10
Dependent Claim
20 words
The oscillator of claim 1 in which said oscillator comprises at least one impedance matching stub disposed in said passageway.
Claim 11
Dependent Claim
23 words
The oscillator of claim 5 in which said conductor body forms with said case a capacitor to bypass rf energy to the case.
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) | 1978-04-14 | 1978-10-14 | 1979-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-04-14 | 1982-10-14 | 1983-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-04-14 | 1986-10-14 | 1987-04-15 | $7700.00 | Window Closed / Lapsed |