Back to results
US 7,095,382 B2Granted
Modified printed dipole antennas for wireless multi-band communications systems
AssigneeSandbridge Technologies, Inc.
InventorsEmanoil Surducan, Daniel Iancu, John Glossner
Life of this patent
Estimating the term…
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.
Claims36
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 λo 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.
7 more elements
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;
- each strip extending from a leg being dimensioned for a different γo than another strip of the leg;
- and
- a pair of conductive plates, each adjacent the strips of a leg of the U-shape at a pre-selected position.
4 more elements
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;
- 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 λo than another strip of the leg.
5 more elements
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;
- 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 λo than another strip of the leg.
5 more elements
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;
- 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 λo than another strip of the leg.
5 more elements
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 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 λo than another strip of the leg.
4 more elements
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;
- each strip extending from a leg being dimensioned for a different λo than another strip of the leg;
- and
- at 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.
4 more elements
A dipole antenna for a wireless communication device comprising:
- 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 λo than another strip of the leg;
- and
- a coaxial feed having inner and outer conductors, each connected to a leg of the U-shape.
4 more elements
A dipole antenna for a wireless communication device comprising:
- 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 λo than another strip of the leg;
- and
- a coaxial feed having inner and outer conductors, each connected to a leg of the U-shape.
4 more elements
A dipole antenna for a wireless communication device comprising:
- 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 λo than another strip of the leg.
3 more elements
A dipole antenna for a wireless communication device comprising:
- 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 λo than another strip of the leg;
- and
- a coaxial feed having inner and outer conductors, each connected to a leg of the U-shape.
3 more elements
A dipole antenna for a wireless communication device comprising:
- 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 λo 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.
3 more elements
A dipole antenna for a wireless communication device comprising:
- 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 λo 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.
3 more elements
Dependencies are inferred from the claim text.