US3860933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slot antenna with flare
Assignee: Tokyo Keiki Inc
•
Filing: 1973-08-15
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Granted: 1975-01-14
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Expires: 1993-08-15
Abstract
Abstract A slot antenna with a flare having flare member having integrally formed therewith a first half section of antenna member and a second half section of antenna member having formed therein slots, in which the second half section of antenna member is mechanically assembled with the first half section of antenna member to provide a slot antenna member.
Inventors
- 👤 Takashige Terakawa
- 👤 Sadahiko Hidaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:22
CPC Classifications
H; H01; H01Q; H01Q13/00; H01Q13/02; H01Q13/0233
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A slot antenna with a flare comprising a flare member having a first half section of antenna member formed as a unitary structure therewith, and a second half section of antenna member having formed therein slots, the first and second half sections of antenna member corresponding to that part having no slots and that part having the slots, respectively, which are obtained by dividing a slot antenna member having the slots in one of the walls of the shorter side of a waveguide of rectangular crosssection into two along a plane parallel with the walls of the shorter side of the waveguide and passing through the center of the walls of the longer side of the waveguide, and the second half section of antenna member being mechanically assembled with the first half section of antenna member formed integrally with the flare member to provide the complete slot antenna member.
Claim 2
Dependent Claim
149 words
A slot antenna with a flare comprising a flare member having a first half section of antenna member formed as a unitary structure therewith, and a second half section of antenna member having formed therein slots, the first and second half sections of antenna member corresponding to that part having no slots and that part having the slots, respectively, which are obtained by dividing a slot antenna member having the slots in one of the walls of the shorter side of a waveguide of rectangular crosssection into two along a plane parallel with the walls of the shorter side of the waveguide and passing through the center of the walls of the longer side of the waveguide, and the second half section of antenna member being mechanically assembled with the first half section of antenna member formed integrally with the flare member to provide the complete slot antenna member.
References Cited (Backward Citations)
US2730717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |