US3787872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave lens antenna and method of producing
Assignee: Corning Glass Works
•
Filing: 1971-08-10
•
Granted: 1974-01-22
•
Expires: 1991-08-10
Abstract
Abstract A microwave lens for use in the transmission of microwave energy, and a method of producing such a lens. The microwave lens of this invention transforms microwave energy passing through the lens to a desired specific phase and amplitude distribution. Both surfaces of the lens are contoured interdependently to provide the desired phase and amplitude distribution.
Inventors
- 👤 J Kauffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:25
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02; H01Q15/08
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
218 words
A lens for providing microwave energy having predetermined desired phase and amplitude distribution, said microwave lens being made of a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, said first and second surfaces further being characterized in that said parameters r, Alpha , x and y are determined by solving the equations
Claim 2
Dependent Claim
218 words
A lens for providing microwave energy having predetermined desired phase and amplitude distribution, said microwave lens being made of a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, said first and second surfaces further being characterized in that said parameters r, Alpha , x and y are determined by solving the equations
Claim 3
Dependent Claim
24 words
The microwave lens of claim 1 wherein said lens is fabricated from a material selected from the group consisting of glass, glass-ceramic and ceramic.
Claim 4
Dependent Claim
15 words
The microwave lens of claim 1 wherein said function F( Alpha ) is a constant.
Claim 5
Dependent Claim
13 words
The microwave lens of claim 1 wherein said function I(x) is a constant.
Claim 6
Dependent Claim
14 words
The microwave lens of claim 1 wherein said function phi (x) is a constant.
Claim 7
Dependent Claim
16 words
The microwave lens of claim 1 wherein said functions F( Alpha ) and I(x) are constants.
Claim 8
Dependent Claim
17 words
The microwave lens of claim 1 wherein said functions F( Alpha ) and phi (x) are constants.
Claim 9
Dependent Claim
15 words
The microwave lens of claim 1 wherein said functions I(x) and phi (x) are constants.
Claim 10
Dependent Claim
217 words
A lens for providing microwave energy having constant phase and amplitude distribution, said microwave lens being made of a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, Said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, said first and second surfaces further being characterized in that said parameters r, Alpha , x and y are determined by solving the equations
Claim 11
Dependent Claim
217 words
A lens for providing microwave energy having constant phase and amplitude distribution, said microwave lens being made of a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, Said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, said first and second surfaces further being characterized in that said parameters r, Alpha , x and y are determined by solving the equations
Claim 12
Dependent Claim
23 words
The microwave lens of claim 9, wherein the initial value of the angle theta equals theta o, and is determined by the equation
Claim 13
Dependent Claim
24 words
The microwave lens of claim 9, wherein said lens is fabricated from a material selected from the group consisting of glass, glass-ceramic and ceramic.
Claim 14
Dependent Claim
15 words
The microwave lens of claim 9, wherein one surface of said lens is substantially planar.
Claim 15
Independent Claim
220 words
A method of making a lens for providing microwave energy having predetermined desired phase and amplitude distribution, said microwave lens being made from a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, comprising the steps of contouring said first surface according to the equations dr/d Alpha r n sin theta /ncos theta -1 and
Claim 16
Independent Claim
220 words
A method of making a lens for providing microwave energy having predetermined desired phase and amplitude distribution, said microwave lens being made from a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, comprising the steps of contouring said first surface according to the equations dr/d Alpha r n sin theta /ncos theta -1 and
Claim 17
Dependent Claim
14 words
The method of claim 13 wherein said function F( Alpha ) is a constant.
Claim 18
Dependent Claim
12 words
The method of claim 13 wherein said function I(x) is a constant.
Claim 19
Dependent Claim
13 words
The method of claim 13 wherein said function phi (x) is a constant.
Claim 20
Dependent Claim
15 words
The method of claim 13 wherein said functions F( Alpha ) and I(x) are constants.
Claim 21
Dependent Claim
16 words
The method of claim 13 wherein said functions F( Alpha ) and phi (x) are constants.
Claim 22
Independent Claim
219 words
A method of making a lens for providing microwave energy having constant phase and amplitude distribution, said microwave lens being made from a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, comprising the steps of contouring said first surface according to the equations dr/d Alpha r n sin theta /ncos theta -1 and
Claim 23
Independent Claim
219 words
A method of making a lens for providing microwave energy having constant phase and amplitude distribution, said microwave lens being made from a dielectric material having a constant index of refraction, said lens having first and second interdependent contoured surfaces for refracting microwave energy, both of said surfaces being rotationally symmetrical about a center axis, said lens being adapted to receive energy from a microwave source, said source being located at the focal point of said lens, said first surface of said lens, which first surface is the nearest surface to said source, being defined by the parameters r, which is the distance from said focal point to said first surface and which represents the line of travel of a ray of microwave energy from said focal point to said first surface and, Alpha , which represents the angle between r and said center axis, and the second surface thereof being defined by the parameters, x which represents the perpendicular distance from said center axis to said second surface, and y, which represents the perpendicular distance from a reference plane to said second surface, said reference plane being tangent to said second surface at said center axis, comprising the steps of contouring said first surface according to the equations dr/d Alpha r n sin theta /ncos theta -1 and
Claim 24
Dependent Claim
22 words
The method of claim 19, wherein the initial value of the angle theta equals theta o, and is determined by the equation
References Cited (Backward Citations)
US2479673A
Cited
US2547416A
Cited
US2761141A
Cited
US2849713A
Cited
US2975419A
Cited
US3392395A
Cited
US3256373A
Cited
US3264648A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |