Planar high-frequency antenna
AssigneeAtheros Communications, Inc.
InventorsJovan E. Lebaric, Arie Shor
Life of this patent
Estimating the term…
Abstract
The present invention provides a planar antenna having a scalable multi-dipole structure for receiving, and transmitting high-frequency signals, including a plurality of opposing layers of conducting strips disposed upon either side of an insulating (dielectric) substrate. The dipoles are bifurcated between sides of a substrate on which the dipoles are disposed. A feed line is balanced to a co-axial cable and feeds one half of the bifurcated dipoles, and an independent feed line is connected to the other half of the bifurcated dipoles. Sets of the dipoles are arranged symmetrically around a center axis of the feed lines. The sets of dipoles are in series with other sets of dipoles. The antenna is ideally suited for operation in the 5.15-5.35 GHz RF band.
Claims49
A substantially planar antenna having a dipole structure for receiving and transmitting high-frequency signals, comprising:
- a substrate;
- a first feed line disposed on a first side of the substrate;
- a second feed line disposed on a second side of the substrate;
- at least two dipoles, each dipole bifurcated so as to have a first half disposed on one side of the substrate and a second half disposed on another side of the substrate;
- wherein:
- one half of each dipole is connected to one of the feed lines, and the other half of each dipole is connected to the other feed line;
- and
- the dipoles are arranged symmetrically around a first axis of the substrate.
An antenna, comprising:
- a substrate;
- a first feed structure disposed on a first side of the substrate;
- a second feed structure, independent of the first feed structure, disposed on a second side of the substrate;
- and
- a plurality of bifurcated dipoles;
- wherein:
- a first part of each bifurcated dipole is disposed on the first side of the substrate and coupled to the first feed structure, and a second part of each bifurcated dipole is disposed on the second side of the substrate and coupled to the second feed structure;
- the plurality of dipoles are dispersed symmetrically about a first line of symmetry.
An antenna, comprising:
- a subsatrate;
- a first feed structure disposed on a first side of the substrate;
- a second feed structure, independent of the first feed structure, disposed on a second side of the substrate;
- a plurality of bifurcated dipoles;
- and
- a balun coupled to one of the feed structures;
- wherein:
- a first part of each bifurcated dipole is disposed on the first side of the substrate and coupled to the first feed structure, and a second part of each bifurcated dipole is disposed on the second side of the substrate and coupled to the second feed structure;
- and
- the balun comprises a lower portion and a tapered portion.
An antenna, comprising:
- a substrate;
- a first feed structure disposed on a first side of the substrate;
- a second feed structure, independent of the first feed structure, disposed on a second side of the substrate;
- a plurality of bifurcated dipoles;
- and
- at least one testing strip connected to at least one of the feed structures;
- wherein a first part of each bifurcated dipole is disposed on the first side of the substrate and coupled to the first feed structure, and a second part of each bifurcated dipole is disposed on the second side of the substrate and coupled to the second feed structure.
An antenna, comprising:
- a substrate;
- a first feed structure dipsosed on a first side of the substrate;
- a second feed structure substantially perpendicularly coupled to the first feed structure;
- a third feed structure dipsosed on a second side of the substrate;
- a fourth feed structure substantially perpendicularly coupled to the third feed structure
- a dipole set,
- wherein the dipole set comprises a first dipole half disposed on the first side of the substrate and a second dipole half dipsosed on the second side of the substrate;
- wherein the first dipole half comprises a first quarter-wavelength dipole connected to an end of the second feed structure and a second quarter-wavelength dipole connected to an opposite end of the second feed structure;
- wherein the second dipole half comprises a third quarter-wavelength dipole connected to an end of the fourth feed structure and a fourth quarter-wavelength dipole connected to opposite end of the fourth feed structure;
- a second dipole set connected to the first and second feed structures.
A wireless communication device having an antenna for receiving and transmitting high-frequency signals, comprising:
- a substrate;
- at least one dipole that is bifurcated and arranged on opposite sides of the substrate;
- wherein:
- each bifurcated part of the dipole is coupled to an independent, balanced antenna feed structure;
- and
- the dipole is arranged symmetrically about a first axis of the substrate.
A wireless communication device having an antenna for receiving and transmitting high-frequency signals, comprising:
- a substrate;
- an independent, balanced antenna feed structure;
- at least one dipole that is bifurcated and arranged on opposite sides of the substrate;
- wherein:
- each bifurcated part of the dipole is coupled to the independent, balanced antenna feed structure;
- and
- the independent, balanced feed structure comprises a balun having a lower potion and a tapered portion.
Dependencies are inferred from the claim text.