Patent US683655A successfully refreshed from Google Patents.
Patent US4528855A successfully refreshed from Google Patents.
US3757342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet array antenna structure
Assignee: Cutler Hammer Inc
•
Filing: 1972-06-28
•
Granted: 1973-09-04
•
Expires: 1992-06-28
Abstract
Abstract Arrays wherein the radiator elements act also as shield conductors of feed lines arranged to provide cophasal interconnection of the radiators without physical transpositions, particularly adaptable to fabrication by etched circuit techniques, as microstrip on the surfaces of a single dielectric substrate.
Inventors
- 👤 H Jasik
- 👤 R Myslicki
- 👤 R Rudish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:11
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/06; H01Q21/08; H01Q21/12; H01Q9/00; H01Q9/04; H01Q9/06; H01Q9/065
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
69 words
An array antenna comprising: a. an untransposed open transmission line having two generally parallel elongated conductors, b. each of said conductors having a transverse dimension that alternates between a maximum value and a minimum value over successive half wavelength intervals along the length of said line, c. the regions of maximum transverse dimension of each of said conductors being adjacent the regions of minimum transverse dimension of the other.
Claim 2
Dependent Claim
69 words
An array antenna comprising: a. an untransposed open transmission line having two generally parallel elongated conductors, b. each of said conductors having a transverse dimension that alternates between a maximum value and a minimum value over successive half wavelength intervals along the length of said line, c. the regions of maximum transverse dimension of each of said conductors being adjacent the regions of minimum transverse dimension of the other.
Claim 3
Dependent Claim
25 words
The invention set forth in claim 1, wherein said conductors are flat strips disposed on an insulating plate, and said alternating transverse dimension is width.
Claim 4
Dependent Claim
17 words
The invention set forth in claim 2, wherein said conductors are on opposite surfaces of said plate.
Claim 5
Dependent Claim
18 words
The invention set forth in claim 1, further including means for reflectively terminating one end of said line.
Claim 6
Dependent Claim
34 words
The invention set forth in claim 2, further including a plurality of similar longitudinally coextensive structures disposed at laterally spaced locations on said insulating plate to provide a sheet array of respectively collinear arrays.
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) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |