US3975695A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide beyond cutoff coupler for coupling to resonant cavity
Assignee: United States Department of the Army
•
Filing: 1975-06-10
•
Granted: 1976-08-17
•
Expires: 1995-06-10
Abstract
Abstract A coupler capable of correctly coupling a microwave source into a resonantavity in a cryogenic environment. The coupler utilizes a rotary mechanical means to adjust the energy through the waveguide-beyond-cutoff into the cavity and control the reflections thereby.
Inventors
- 👤 Richard L. Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 07:52
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
111 words
A waveguide beyond cutoff coupler for connecting a microwave source into a resonant cavity said coupler comprising: a waveguide section adapted to be connected between said microwave source and said resonant cavity; a hollow brass section provided with an outwardly tapered top disposed within said waveguide section; a hollow dielectric body disposed within said section, said body having threads on its internal wall; a tuning slug disposed inside of said body and having external threads thereon for a rotary connection with said body and a rod connected to said tuning slug for controlling the rotary movement of said slug and thereby the amount of source energy coupling to said resonant cavity.
Claim 2
Dependent Claim
111 words
A waveguide beyond cutoff coupler for connecting a microwave source into a resonant cavity said coupler comprising: a waveguide section adapted to be connected between said microwave source and said resonant cavity; a hollow brass section provided with an outwardly tapered top disposed within said waveguide section; a hollow dielectric body disposed within said section, said body having threads on its internal wall; a tuning slug disposed inside of said body and having external threads thereon for a rotary connection with said body and a rod connected to said tuning slug for controlling the rotary movement of said slug and thereby the amount of source energy coupling to said resonant cavity.
Claim 3
Dependent Claim
22 words
A waveguide beyond cutoff coupler as set forth in claim 1 wherein said body and said tuning slug are made of Teflon.
Claim 4
Dependent Claim
135 words
A microwave source to resonant cavity cutoff coupling mechanism comprising; a waveguide elbow connected to said microwave source and to a waveguide section; a resonant cavity at one end of said waveguide section; a coupling iris for connecting said waveguide section to said cavity; a hollow brass section provided with an outwardly tapered top; a hollow Teflon body disposed within said hollow brass section, said body having threads on its internal wall; a Teflon tuning slug disposed inside of said body and having external threads thereon for rotary connection with said body; said hollow section, body and tuning slug being disposed within said waveguide section to control said coupling iris and a rod connected to said tuning slug for controlling the rotary movement of said slug, said rod extending through said elbow for external control.
Claim 5
Dependent Claim
135 words
A microwave source to resonant cavity cutoff coupling mechanism comprising; a waveguide elbow connected to said microwave source and to a waveguide section; a resonant cavity at one end of said waveguide section; a coupling iris for connecting said waveguide section to said cavity; a hollow brass section provided with an outwardly tapered top; a hollow Teflon body disposed within said hollow brass section, said body having threads on its internal wall; a Teflon tuning slug disposed inside of said body and having external threads thereon for rotary connection with said body; said hollow section, body and tuning slug being disposed within said waveguide section to control said coupling iris and a rod connected to said tuning slug for controlling the rotary movement of said slug, said rod extending through said elbow for external control.
References Cited (Backward Citations)
US2675524A
Cited
US3518580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-08-17 | 1980-02-16 | 1980-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-17 | 1984-02-16 | 1984-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-17 | 1988-02-16 | 1988-08-17 | $7700.00 | Window Closed / Lapsed |