US4038742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making styrofoam slotted plane-array antenna
Assignee: United States Department of the Army
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Filing: 1976-09-15
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Granted: 1977-08-02
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Expires: 1996-09-15
Abstract
Abstract A copper plated styrofoam dielectric planar array antenna having adjacent otted waveguide sections bonded with a silver loaded conducting epoxy. The sections are fabricated by plating a thin film of copper on a preformed styrofoam dielectric material. The slots are machined into the copper plated sections.
Inventors
- 👤 John K. Kimball
- 👤 Troy E. Plunk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:11
CPC Classifications
H; H01; H01Q; H01Q21/00; H01Q21/0006; H01Q21/0037; H01Q21/0043; H01Q21/005; H01Q13/00; H01Q13/10; H01Q13/106; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A fabricating process for an antenna comprising the steps of providing a plurality of styrofoam sections, machining these sections to identical predetermined shapes; drilling an alignment hole in the center of each section; drilling two columns of holes on either side of said alignment hole in each section; copper plating, including all holes, each section; providing a conductive epoxy; bonding the sections together in a side by side fashion with the epoxy; placing alignment pins in the alignment holes for holding the sections in place during milling; milling a plurality of slots through the copper plating of each section; machining the ends of the bonded sections to a predetermined shape; and replating the ends.
Claim 2
Dependent Claim
114 words
A fabricating process for an antenna comprising the steps of providing a plurality of styrofoam sections, machining these sections to identical predetermined shapes; drilling an alignment hole in the center of each section; drilling two columns of holes on either side of said alignment hole in each section; copper plating, including all holes, each section; providing a conductive epoxy; bonding the sections together in a side by side fashion with the epoxy; placing alignment pins in the alignment holes for holding the sections in place during milling; milling a plurality of slots through the copper plating of each section; machining the ends of the bonded sections to a predetermined shape; and replating the ends.
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) | 1980-08-01 | 1981-01-31 | 1981-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-01 | 1985-01-31 | 1985-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-01 | 1989-01-31 | 1989-08-02 | $7700.00 | Window Closed / Lapsed |