Patent US3832716A successfully refreshed from Google Patents.
US3832716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio frequency slot antenna
Assignee: Raytheon Co
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Filing: 1973-05-23
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Granted: 1974-08-27
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Expires: 1993-05-23
Abstract
Abstract A stripline slotted array antenna is disclosed wherein the radiating efficiency and bandwidth are improved by including in each radiating element a pair of adjacent radiating slots. The antenna includes center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna. The pair of slots is formed in the radiating face of the antenna. The pair of radiating slots is disposed adjacent to an end portion of the center conductor circuitry, one being coupled to an electric field existing between the end of such circuitry and the back plate and the other one of such pair of radiating slots being coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna.
Inventors
- 👤 T Plunk
- 👤 R Laramee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:57
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/061; H01Q21/064; H01Q13/00; H01Q13/10; H01Q13/106
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
146 words
In a stripline slotted array antenna including center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna, an array of radiating elements, each one thereof terminating an end portion of the center conductor circuitry and comprising: a. a first radiating slot, formed in the radiating face, disposed adjacent to the end of the center conductor circuitry and coupled to an electric field existing between such circuitry and the back plate of the antenna; and b. a second radiating slot, formed in the radiating face, disposed adjacent to, and totally separated from, the first slot by a portion of the radiating face, such second radiating slot being coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna.
Claim 2
Dependent Claim
146 words
In a stripline slotted array antenna including center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna, an array of radiating elements, each one thereof terminating an end portion of the center conductor circuitry and comprising: a. a first radiating slot, formed in the radiating face, disposed adjacent to the end of the center conductor circuitry and coupled to an electric field existing between such circuitry and the back plate of the antenna; and b. a second radiating slot, formed in the radiating face, disposed adjacent to, and totally separated from, the first slot by a portion of the radiating face, such second radiating slot being coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna.
Claim 3
Dependent Claim
29 words
The radiating element recited in claim 1 including conducting material disposed intermediate the first and second radiating slots and extending from the radiating face to the center conducting circuitry.
Claim 4
Dependent Claim
31 words
The radiating element recited in claim 2 including an additional conducting material disposed outside the first radiating slot and extending from the radiating face to the back plate of the antenna.
Claim 5
Dependent Claim
108 words
The radiating element recited in claim 1 including: a. a first conducting material disposed intermediate the first and second radiating slots and extending from the radiating face to the center conductor circuitry, such first conducting material, center conductor circuitry and radiating face being arranged to form a feed for the second radiating slot; and b. a second conducting material disposed outside both the first radiating slot and the end of the center conductor circuitry and extending from the radiating face to the back plate, such second conducting material, center conductor circuitry, first conducting material, and back plate being arranged to form a feed for the first radiating slot.
Claim 6
Dependent Claim
35 words
The radiating element recited in claim 1 wherein the first radiating slot and the second radiating slot are separated by an integral number of lambda /2 where lambda is the operating wavelength of the antenna.
Claim 7
Dependent Claim
154 words
In a stripline slotted array antenna including center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna, an array of radiating elements, each one thereof terminating an end portion of the center conductor circuitry and comprising: a. a first radiating slot, formed in the radiating face, disposed adjacent to the end of the center conductor circuitry and coupled to an electric field existing between such circuitry and the back plate of the antenna; b. a second radiating slot, formed in the radiating face, disposed adjacent to the first slot and coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna; and, c. a conducting material disposed outside the first radiating slot and extending from the radiating face to the back plate of the antenna.
Claim 8
Dependent Claim
154 words
In a stripline slotted array antenna including center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna, an array of radiating elements, each one thereof terminating an end portion of the center conductor circuitry and comprising: a. a first radiating slot, formed in the radiating face, disposed adjacent to the end of the center conductor circuitry and coupled to an electric field existing between such circuitry and the back plate of the antenna; b. a second radiating slot, formed in the radiating face, disposed adjacent to the first slot and coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna; and, c. a conducting material disposed outside the first radiating slot and extending from the radiating face to the back plate of the antenna.
Claim 9
Dependent Claim
108 words
The radiating element recited in claim 6 including: a. a first conducting material disposed intermediate the first and second radiating slots and extending from the radiating face to the center conductor circuitry, such first conducting material, center conductor circuitry and radiating face being arranged to form a feed for the second radiating slot; and b. a second conducting material disposed outside both the first radiating slot and the end of the center conductor circuitry and extending from the radiating face to the back plate, such second conducting material, center conductor circuitry, first conducting material, and back plate being arranged to form a feed for the first radiating slot.
Claim 10
Dependent Claim
145 words
In a stripline slotted array antenna including center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna, an array of radiating elements, each one thereof terminating an end portion of the center conductor circuitry and comprising: a. a first radiating slot, formed in the radiating face, disposed adjacent to the end of the center conductor circuitry and coupled to an electric field existing between such circuitry and the back plate of the antenna; and b. a second radiating slot, formed in the radiating face, disposed an integral multiple of lambda /2, where lambda is the operating wavelength of the antenna, from the first slot and coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna.
Claim 11
Dependent Claim
145 words
In a stripline slotted array antenna including center conductor circuitry separated from a pair of ground plane elements, one of which is the radiating face of the antenna and one of which is the back plate of the antenna, an array of radiating elements, each one thereof terminating an end portion of the center conductor circuitry and comprising: a. a first radiating slot, formed in the radiating face, disposed adjacent to the end of the center conductor circuitry and coupled to an electric field existing between such circuitry and the back plate of the antenna; and b. a second radiating slot, formed in the radiating face, disposed an integral multiple of lambda /2, where lambda is the operating wavelength of the antenna, from the first slot and coupled to an electric field existing between the center conductor circuitry and the radiating face of the antenna.
Claim 12
Dependent Claim
29 words
The radiating element recited in claim 8 including conducting material disposed intermediate the first aNd second radiating slots and extending from the radiating face to the center conducting circuitry.
Claim 13
Dependent Claim
31 words
The radiating element recited in claim 9 including an additional conducting material disposed outside the first radiating slot and extending from the radiating face to the back plate of the antenna.
Claim 14
Dependent Claim
108 words
The radiating element recited in claim 8 including: a. a first conducting material disposed intermediate the first and second radiating slots and extending from the radiating face to the center conductor circuitry, such first conducting material, center conductor circuitry and radiating face being arranged to form a feed for the second radiating slot; and b. a second conducting material disposed outside both the first radiating slot and the end of the center conductor circuitry and extending from the radiating face to the back plate, such second conducting material, center conductor circuitry, first conducting material, and back plate being arranged to form a feed for the first radiating slot.
References Cited (Backward Citations)
US2877427A
Cited
US3665480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |