SPIRAL ANTENNA WITH DIELECTRIC COVER
First Claim
1. An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs.
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Abstract
A radar antenna and method of constructing the same, the antenna having a cup-like support base, a printed antenna circuit on a thin flexible dielectric blank, and an impervious cover, the antenna being constructed by stretching the dielectric blank across the open end of the support using a jig having means to engage a plurality of radially projecting tabs on the dielectric blank and drawing the tabs down against the side of the support to which they are secured before being severed from the jig, and covering the dielectric blank with the impervious cover to hermetically seal the printed antenna circuit from adverse environmental conditions.
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Citations
15 Claims
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1. An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs.
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2. The antenna of claim 1 comprising further a cover on the support base which covers the antenna circuit.
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3. The antenna of claim 2 wherein said cover comprises an impervious dielectric blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
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4. An antenna comprising:
- a cup-like support base having an open end and a cylindrical side, and a thin, flexible dielectric antenna blank having a spiral antenna circuit printed thereon and a plurality of radially projecting integral tabs, said blank being stretched across the open end of the support base and secured thereto by the plurality of radially projecting tabs which are fastened to the side of the support base.
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5. The antenna of claim 4 comprising further a cover on said support base which covers said antenna circuit.
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6. The antenna of claim 5 wherein said cover comprises an impervious dielectric antenna blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
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7. The antenna of claim 6 wherein said thin dielectric blank on which said antenna circuit is printed is air pervious to relieve pressure differences on either side of the blank.
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8. The antenna of claim 1 wherein said cylindrical side adjacent said open end is chamfered with a plurality of grooves to insure that the tabs are fastened securely to the side of the support base.
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9. The antenna of claim 8 wherein said tabs are fastened with an epoxy adhesive.
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10. An antenna comprising a support base and a thin, flexible dielectric blank having a spiral antenna circuit thereon and having further a peripheral overlap, said blank being stretched over said support base and secured thereto by said peripheral overlap.
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11. The antenna of claim 10 comprising further a cover on the support base which covers the antenna circuit, wherein said cover comprises an impervious dielectric blank having a peripheral overlap, said cover being stretched over said antenna circuit and over said support base and secured thereto by said peripheral overlap.
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12. The antenna of claim 11 wherein said dielectric blank on which said antenna circuit is printed is air pervious to relieve pressure differences on either side of the blank.
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13. An antenna comprising:
- a support base;
a dielectric blank having an antenna circuit thereon and having further a plurality of integral tabs, said blank being stretched over said support base and secured thereto by said plurality of tabs; and
a cover on the support base which covers the antenna circuit, said cover comprising an impervious dielectric blank having a plurality of tabs, said cover being stretched over said antenna circuit and over said support base and secured thereto by said plurality of tabs.
- a support base;
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14. An antenna comprising:
- a support base;
a dielectric blank having an antenna circuit thereon and having further a peripheral overlap, said blank being stretched over said support base and secured thereto by said peripheral overlap; and
a cover on the support base which covers the antenna circuit, said cover comprising an impervious dielectric blank having a peripheral overlap, said cover being stretched over said support base and secured thereto by said peripheral overlap.
- a support base;
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15. The antenna of claim 14 wherein said dielectric blank on which said antenna circuit is printed is air pervious to relieve pressure differences on either side of the blank, and is displaced from said cover.
Specification