Patent US3569973A successfully refreshed from Google Patents.
US3569973A
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US
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Constrained lens type antenna
Assignee: Boeing North American Inc
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Filing: 1969-05-02
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Granted: 1971-03-09
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Expires: 1989-05-02
Abstract
Abstract A constrained lens-type antenna including a lens having a controlled aperture phase distribution and utilizing stripline circuitry. The lens is formed of a plurality of mutually parallel stripline assemblies, each assembly comprising a pair of mutually nested dielectric U-channels sandwiching a dielectric slipsheet having a plurality of deposited electrically conductive lines of selected lengths as discrete delay elements. The outer surface of the opposing walls of the U-shaped channel assembly include microwave ports, each being electromagnetically coupled to an associated terminus of a mutually exclusive one of said delay elements, the ports in one of the opposing walls being exposed to a feed horn, serve as feed ports, while the ports in the other of the opposing walls serve as radiating ports. The novel use of stripline circuitry provides a lens assembly of minimum bulk and weight while also having improved geometrical tolerances and performance.
Inventors
- 👤 Charles T Brumbaugh Jr
- 👤 Jerry L Mcfarland
- 👤 Jack W Preston
- 👤 Richard W Wesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:17
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/062; H01Q15/00; H01Q15/02
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
126 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribution and including in combination a plurality of discrete and mutually parallel laminated stripline assemblies, each assembly comprising: a laminated pair of dielectric plates; a dielectric slipsheet having a plurality of electrically conductive delay lines of selected lengths deposited thereon, said slipsheet being sandwiched between said plates of said laminated pair; and opposing faces of said laminated assembly being clad with an electrically conductive coating, at least one of said faces having a plurality of microwave ports formed by apertures in said coating, each aperture being in registry with an associated terminus of a mutually exclusive one of said delay lines for effecting electromagnetic coupling between each port and an associated delay lIne element.
Claim 2
Dependent Claim
126 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribution and including in combination a plurality of discrete and mutually parallel laminated stripline assemblies, each assembly comprising: a laminated pair of dielectric plates; a dielectric slipsheet having a plurality of electrically conductive delay lines of selected lengths deposited thereon, said slipsheet being sandwiched between said plates of said laminated pair; and opposing faces of said laminated assembly being clad with an electrically conductive coating, at least one of said faces having a plurality of microwave ports formed by apertures in said coating, each aperture being in registry with an associated terminus of a mutually exclusive one of said delay lines for effecting electromagnetic coupling between each port and an associated delay lIne element.
Claim 3
Dependent Claim
32 words
The device of claim 1 in which said apertures in said one coating form two parallel lineal arrays of ports, each array being electromagnetically coupled to opposite terminii of said delay lines.
Claim 4
Dependent Claim
71 words
The device of claim 1 in which said apertures in one of said coatings form two lineal arrays of ports, each array parallel to and proximate opposite edges of said laminated assembly and being electromagnetically coupled to opposite terminii of said delay lines, each said assembly being formed as a U-shaped channel, the outer surface of the opposing walls of such channel including a respective one of said two lineal arrays.
Claim 5
Dependent Claim
46 words
The device of claim 1 in which said apertures are located in each said coating, forming a lineal array of ports in a respective one of said plates, arrays on opposite faces of said laminated pair being electromagnetically coupled to opposite terminii of said delay lines.
Claim 6
Dependent Claim
44 words
The device of claim 1 in which said apertures are located in each of said coatings, forming a lineal array of ports parallel to and proximate an opposite edge of said laminated assembly and being electromagnetically coupled to opposite terminii of said delay lines.
Claim 7
Dependent Claim
146 words
A constrained lens-type antenna comprising a lens having a controlled phase aperture distribution and including in combination: a plurality of discrete and mutually parallel-stacked U-shaped channel stripline assemblies; each assembly comprising: a pair of mutually nested rigid dielectric U-channels sandwiching a dielectric slipsheet having a plurality of electrically conductive coplanar lines of selected lengths as discrete delay elements; the outer surface of the opposing walls of the outer U-shaped channel including microwave windows as ports formed by conductive loops, each window being in registry with an associated terminus of a mutually exclusive one of said delay elements, the inside surface of the inner U-shaped channel being electrically conductively coated; and a plurality of shorting pins formed through opposing walls of said assembly, the locus of which pins define microwave cavities for effecting electromagnetic coupling between each said windows and an associated terminus of said delay element.
Claim 8
Dependent Claim
146 words
A constrained lens-type antenna comprising a lens having a controlled phase aperture distribution and including in combination: a plurality of discrete and mutually parallel-stacked U-shaped channel stripline assemblies; each assembly comprising: a pair of mutually nested rigid dielectric U-channels sandwiching a dielectric slipsheet having a plurality of electrically conductive coplanar lines of selected lengths as discrete delay elements; the outer surface of the opposing walls of the outer U-shaped channel including microwave windows as ports formed by conductive loops, each window being in registry with an associated terminus of a mutually exclusive one of said delay elements, the inside surface of the inner U-shaped channel being electrically conductively coated; and a plurality of shorting pins formed through opposing walls of said assembly, the locus of which pins define microwave cavities for effecting electromagnetic coupling between each said windows and an associated terminus of said delay element.
Claim 9
Dependent Claim
90 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribution and including in combination a plurality of discrete and mutually parallel stacked stripline assemblies, each assembly comprising: a pair of mutually nested rigid dielectric U-channels sandwiching a dielectric slipsheet having a plurality of deposited electrically conductive coplanar lines of selected lengths as discrete delay elements; the outer surface of the opposing walls of the U-shaped channel assembly including microwave ports, each being electromagnetically coupled to an associated terminus of a mutually exclusive one of said delay elements.
Claim 10
Dependent Claim
90 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribution and including in combination a plurality of discrete and mutually parallel stacked stripline assemblies, each assembly comprising: a pair of mutually nested rigid dielectric U-channels sandwiching a dielectric slipsheet having a plurality of deposited electrically conductive coplanar lines of selected lengths as discrete delay elements; the outer surface of the opposing walls of the U-shaped channel assembly including microwave ports, each being electromagnetically coupled to an associated terminus of a mutually exclusive one of said delay elements.
Claim 11
Dependent Claim
136 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribution and including in combination a plurality of discrete and mutually parallel U-shaped channel stripline assemblies, each assembly comprising; a pair of mutually nested rigid dielectric U-channels; a dielectric slipsheet having a plurality of electrically conductive delay lines of selected lengths, said slipsheet being sandwiched between said nested U-channels; the outer surface of the opposing walls of the outer U-shaped channel including microwave ports formed by enclosed conductive loops, each port being in registry with an associated terminus of a mutually exclusive one of said delay lines, the inside surface of the inner U-shaped channel being electrically conductively coated; and opposing walls of said assembly including microwave cavities for effecting electromagnetic coupling between each said windows and an associated terminus of said delay line.
Claim 12
Dependent Claim
136 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribution and including in combination a plurality of discrete and mutually parallel U-shaped channel stripline assemblies, each assembly comprising; a pair of mutually nested rigid dielectric U-channels; a dielectric slipsheet having a plurality of electrically conductive delay lines of selected lengths, said slipsheet being sandwiched between said nested U-channels; the outer surface of the opposing walls of the outer U-shaped channel including microwave ports formed by enclosed conductive loops, each port being in registry with an associated terminus of a mutually exclusive one of said delay lines, the inside surface of the inner U-shaped channel being electrically conductively coated; and opposing walls of said assembly including microwave cavities for effecting electromagnetic coupling between each said windows and an associated terminus of said delay line.
Claim 13
Dependent Claim
123 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribuTion and including in combination a shingled plurality of discrete and mutually parallel-laminated stripline assemblies, each assembly comprising: a laminated pair of dielectric plates; a dielectric slipsheet having a plurality of electrically conductive delay lines of selected lengths deposited thereon, said slipsheet being sandwiched between said plates of said laminated pair; and opposing faces of said laminated assembly being clad with an electrically conductive coating, each said face having a plurality of microwave ports formed by apertures in said coating, each aperture being in registry with an associated terminus of a mutually exclusive one of said delay lines for effecting electromagnetic coupling between each port and an associated delay line element.
Claim 14
Dependent Claim
123 words
A constrained lens-type antenna comprising a lens having a controlled aperture phase distribuTion and including in combination a shingled plurality of discrete and mutually parallel-laminated stripline assemblies, each assembly comprising: a laminated pair of dielectric plates; a dielectric slipsheet having a plurality of electrically conductive delay lines of selected lengths deposited thereon, said slipsheet being sandwiched between said plates of said laminated pair; and opposing faces of said laminated assembly being clad with an electrically conductive coating, each said face having a plurality of microwave ports formed by apertures in said coating, each aperture being in registry with an associated terminus of a mutually exclusive one of said delay lines for effecting electromagnetic coupling between each port and an associated delay line element.
Claim 15
Dependent Claim
44 words
The device of claim 9 in which said apertures in each said coating form a lineal array of ports in a respective one of said plates, arrays on opposite faces of said laminated pair being electromagnetically coupled to opposite terminii of said delay lines.
Claim 16
Dependent Claim
42 words
The device of claim 9 in which said apertures in each of said coatings form a lineal array of ports parallel to and proximate an opposite edge of said laminated assembly and being electromagnetically coupled to opposite terminii of said delay lines.
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |