US4453802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Evanescent-wave coupling device
Assignee: Raytheon Co
•
Filing: 1981-10-26
•
Granted: 1984-06-12
•
Expires: 2001-10-26
Abstract
Abstract A dielectric waveguide is disposed adjacent to a diode array which allows for coupling of energy therebetween. The waveguide has a core section and a cladding section encompassing a core section except in a portion thereof. The diode array is disposed adjacent to the exposed core portion at a proximity which allows evanescent coupling of energy between energy traversing the waveguide and the diodes of the diode array. A variety of microwave devices may be provided by this arrangement which include a signal source, detector, harmonic generator, upconverter, down-converter, or power combiner, depending upon the types of signals and manner of application of the signals applied to the waveguide and to the diode array.
Inventors
- 👤 William B. Bridges
- 👤 Adrian E. Popa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:15
CPC Classifications
H; H03; H03D; H03D9/00; H01; H01P; H01P1/00; H01P1/005
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
163 words
An evanescent-wave coupling device comprising: a dielectric waveguide having a core section and a cladding section encompassing said core section except for a portion thereof, said waveguide having an input end and an output end; a diode array disposed adjacent to said waveguide near the exposed portion of said core section at a proximity which allows for evanescent coupling of energy between said waveguide and said diode array; first means coupled to the input end of said waveguide for coupling first signals thereto; diode control means coupled to said diode array for coupling second signals to or from said diode array, said diode control means comprising a choke and delay-line arrangement to phase match the diode signals, which arrangement is coupled to said diode array and which allows said diode control means to apply a low frequency signal to said diode array; and second means coupled to the output end of said waveguide for coupling third signals into or out of said waveguide.
Claim 2
Dependent Claim
163 words
An evanescent-wave coupling device comprising: a dielectric waveguide having a core section and a cladding section encompassing said core section except for a portion thereof, said waveguide having an input end and an output end; a diode array disposed adjacent to said waveguide near the exposed portion of said core section at a proximity which allows for evanescent coupling of energy between said waveguide and said diode array; first means coupled to the input end of said waveguide for coupling first signals thereto; diode control means coupled to said diode array for coupling second signals to or from said diode array, said diode control means comprising a choke and delay-line arrangement to phase match the diode signals, which arrangement is coupled to said diode array and which allows said diode control means to apply a low frequency signal to said diode array; and second means coupled to the output end of said waveguide for coupling third signals into or out of said waveguide.
Claim 3
Dependent Claim
84 words
The evanescent-wave coupling device of claim 1 wherein said first means comprises a signal source which provides said first signals at a first predetermined frequency, said diode control means providing second signals at a second predetermined frequency, said evanescent-wave coupling device combining said first and second signals in a manner which produces third signals having a frequency which is a predetermined multiple of said first predetermined frequency, said third signals providing harmonic output signals for said device, said device comprising a harmonic generator device.
Claim 4
Dependent Claim
72 words
The evanescent-wave coupling device of claim 1 wherein said first means comprises a signal source which provides said first signals at a first predetermined frequency, said diode control means providing second signals at a second predetermined frequency, said coupling device combining said first and second signals in a manner which produces third signals having a frequency which is the sum of said first and second frequencies, said device comprising an upconverter device.
Claim 5
Dependent Claim
80 words
The evanescent-wave coupling device of claim 1 wherein said first means comprises a signal source which provides said first signals at a first predetermined frequency, said diode control means providing second signals at a second predetermined frequency, said second signals being local oscillator signals, said evanescent-wave coupling device combining said first and second signals in a manner which produces third signals having a frequency which is the difference between said first and second frequencies, said device comprising a mixer device.
Claim 6
Dependent Claim
76 words
The evanescent-wave coupling device of claim 1 wherein said first means comprises a signal source which provides said first signals at a first predetermined frequency, said coupling device coupling said first signals to said diode array which detects said first signals in a predetermined manner which allows said diode control means to couple second signals out of said device as the output signals thereof, said second signals being indicative of information carried by said first signals.
Claim 7
Dependent Claim
57 words
The evanescent-wave coupling device of claim 1 which further comprises a plurality of shorting planes coupled to opposite ends of said dielectric waveguide in order to form a dielectric waveguide resonator; and a directional coupler disposed adjacent to said waveguide resonator for coupling energy applied to said directional coupler into or out of said dielectric waveguide resonator.
References Cited (Backward Citations)
US3944950A
Cited
US3760297A
Cited
US3916351A
Cited
US4270224A
Cited
US4293833A
Cited
US4387954A
Cited
US4394632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-06-12 | 1987-12-12 | 1988-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-06-12 | 1991-12-12 | 1992-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-06-12 | 1995-12-12 | 1996-06-12 | $7700.00 | Window Closed / Lapsed |