Composite dielectric molded product and lens antenna using the same
First Claim
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1. A composite dielectric molded product comprising a composite dielectric material containing a dielectric inorganic filler and an organic polymer material;
- wherein the dielectric constant anisotropy, which is the ratio (A/B) of dielectric constant A in a direction in which the dielectric constant is maximum to dielectric constant B in a direction in which the dielectric constant is minimum, is in the about 1.00 to 1.05.
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Abstract
Provided is a composite dielectric molded product exhibiting excellent properties such as the antenna gain and side lobe, etc. when used for a lens antenna, and exhibiting less variation of properties in one individual product and between individual products. The composite dielectric molded product is formed by molding a composite dielectric material containing a dielectric inorganic filler and an organic polymer material so that the dielectric constant anisotropy is in the range of about 1.00 to 1.05.
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Citations
20 Claims
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1. A composite dielectric molded product comprising a composite dielectric material containing a dielectric inorganic filler and an organic polymer material;
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wherein the dielectric constant anisotropy, which is the ratio (A/B) of dielectric constant A in a direction in which the dielectric constant is maximum to dielectric constant B in a direction in which the dielectric constant is minimum, is in the about 1.00 to 1.05. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
wherein the lens unit comprises a composite dielectric molded product according to claim 11.
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13. A lens antenna according to claim 12, wherein the lens unit comprises a lens body having a surface and a matching layer on the surface of the lens body, for matching the lens body with the air.
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14. A lens antenna according to claim 13, wherein the matching layer has a relative dielectric constant which is approximately the same as the square root of the relative dielectric constant of the lens body.
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15. A lens antenna comprising at least a lens unit having a convex outgoing plane, and a primary transmitter behind the lens unit;
wherein the lens unit comprises a composite dielectric molded product according to claim 5.
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16. A lens antenna according to claim 15, wherein the lens unit comprises a lens body having a surface and a matching layer on the surface of the lens body, for matching the lens body with the air.
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17. A lens antenna according to claim 16, wherein the matching layer has a relative dielectric constant which is approximately the same as the square root of the relative dielectric constant of the lens body.
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18. A lens antenna comprising at least a lens unit having a convex outgoing plane, and a primary transmitter behind the lens unit;
wherein the lens unit comprises a composite dielectric molded product according to claim 1.
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19. A lens antenna according to claim 18, wherein the lens unit comprises a lens body having a surface and a matching layer on the surface of the lens body, for matching the lens body with the air.
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20. A lens antenna according to claim 19, wherein the matching layer has a relative dielectric constant which is approximately the same as the square root of the relative dielectric constant of the lens body.
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