Modified printed dipole antennas for wireless multi-band communications systems
First Claim
1. A dipole antenna for a wireless communication device comprising:
- a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer;
a first conductive via connects the first and second conductive elements through the first dielectric layer;
the second conductive element being generally U-shaped;
the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape;
at least one of the strips on each leg being T-shape;
each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg;
a ground plane conductor superimposed and separated from the second conductive element by a second dielectric layer;
a third conductive element superimposed and separated from the strips of the second conductive element by the first dielectric layer; and
a second conductive via connecting the third conductive element to the ground conductor through the dielectric layers.
4 Assignments
0 Petitions
Accused Products
Abstract
A dipole antenna for a wireless communication device, which includes a first conductive element superimposed on a portion of and separated from a second conductive element by a first dielectric layer. A first conductive via connects the first and second conductive elements through the first dielectric layer. The second conductive element is generally U-shaped. The second conductive element includes a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape. Each strip is dimensioned for a different center frequency λ0. The first conductive element may be replaced by a coaxial feed directly to the second conductive element.
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Citations
36 Claims
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1. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; at least one of the strips on each leg being T-shape; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg;a ground plane conductor superimposed and separated from the second conductive element by a second dielectric layer; a third conductive element superimposed and separated from the strips of the second conductive element by the first dielectric layer; and a second conductive via connecting the third conductive element to the ground conductor through the dielectric layers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; each strip extending from a leg being dimensioned for a different γ
o than another strip of the leg; anda pair of conductive plates, each adjacent the strips of a leg of the U-shape at a pre-selected position. - View Dependent Claims (19)
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20. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; one of the strips on each leg being T-shape; one of strips on each leg including a trapezoidal shaped portion and a uniform width portion extending from the trapezoid shaped portion; and each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg.
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21. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; one of the strips on each leg being T-shape; one of the strips on each leg being adjacent the T-shaped strip and including a portion at an acute angle so as to be spaced adjacent the head of the T-shaped; and each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg.
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22. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; one of the strips on each leg is T-shape having a base and a head; one of the strips on each leg being adjacent the T-shaped strip, having an inverted L-shape, having a shorter length than the length of the base of the T-shaped strip, and extending from the leg of the U-shape below the head of the T-shaped strip; and each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg.
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23. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; at least one of the strips on each leg being T-shape which includes a portion extending from one side of the head of the T-shape back towards the leg of the U-shape; and each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg.
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24. A dipole antenna for a wireless communication device comprising:
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a first conductive element superimposed a portion of and separated from a second conductive element by a first dielectric layer; a first conductive via connects the first and second conductive elements through the first dielectric layer; the second conductive element being generally U-shaped; the second conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg; andat least one of the strips including a first portion extending transverse to the leg of the U-shape, and a second portion extending transverse to the first portion and a third portion extending into the first dielectric layer from the second portion.
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25. A dipole antenna for a wireless communication device comprising:
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a generally U-shaped first conductive element on a first dielectric layer; the first conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; one of the strips on each leg being T-shaped; one the of strips on each leg having a trapezoidal shaped portion and a uniform width portion extending from the step shaped portion; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg; anda coaxial feed having inner and outer conductors, each connected to a leg of the U-shape. - View Dependent Claims (26, 27, 28, 29, 30)
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31. A dipole antenna for a wireless communication device comprising:
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a generally U-shaped first conductive element on a first dielectric layer; the first conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; one of the strips on each leg being T-shaped; one of the strips on each leg being adjacent the T-shaped strip and including a portion at an acute angle so as to be spaced adjacent the head of the T-shaped; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg; anda coaxial feed having inner and outer conductors, each connected to a leg of the U-shape.
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32. A dipole antenna for a wireless communication device comprising:
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a generally U-shaped first conductive element on a first dielectric layer; the first conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; one of the strips on each leg being T-shaped and having a base and a head; one of the strips on each leg adjacent the T-shaped strip being an inverted L-shape, having a shorter length than the length of the base of the T-shaped strip, and extending from the leg of the U-shape below the head of the T-shaped strip; and each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg.
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33. A dipole antenna for a wireless communication device comprising:
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a generally U-shaped first conductive element on a first dielectric layer; the first conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; at lease one of the strips on each leg being T-shaped which includes a portion extending from one side of the head of the T-shape back towards the leg of the U-shape; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg; anda coaxial feed having inner and outer conductors, each connected to a leg of the U-shape.
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34. A dipole antenna for a wireless communication device comprising:
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a generally U-shaped first conductive element on a first dielectric layer; the first conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg;a coaxial feed having inner and outer conductors, each connected to a leg of the U-shape; and at least one of the strips including a first portion extending transverse to the leg of the U-shape, a second portion extending transverse to the first portion and a third portion extending into the first dielectric layer from the second portion.
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35. A dipole antenna for a wireless communication device comprising:
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a generally U-shaped first conductive element on a first dielectric layer; the first conductive element including a plurality of spaced conductive strips extending transverse from adjacent ends of the legs of the U-shape; each strip extending from a leg being dimensioned for a different λ
o than another strip of the leg;a coaxial feed having inner and outer conductors, each connected to a leg of the U-shape; and a pair of conductive plates, each adjacent the strips of a leg of the U-shape at a pre-selected position. - View Dependent Claims (36)
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Specification