Antenna system
OwnerAndrew Foxinventor
Life of this patent
Estimating the term…
Abstract
An antenna system includes a dielectric resonator, provided with first and second electrical signal inputs. An electrical signal is fed through the first electrical signal input, and through the second electrical signal input with a significant phase difference, for example in the region of 180°. This has the advantage that the antenna bandwidth is increased, allowing the antenna system to be used in wideband applications.
Claims41
An antenna system, comprising a dielectric resonator antenna, and means for simultaneously supplying an electrical signal to first and second points in the dielectric resonator antenna, with a phase difference therebetween, such that the first and second points each couple to a desired mode of the dielectric resonator antenna, and such that a frequency response of the antenna has two nulls in its return loss characteristic.
An antenna system, comprising a dielectric resonator antenna, and means for supplying an electrical signal to first and second points in the dielectric resonator antenna, with a phase difference therebetween, such that the first and second points each couple to a desired mode of the dielectric resonator antenna,
- wherein the first and second points lie in a first plane, which has first and second dimensions, and
- wherein a size of the dielectric resonator antenna increases in at least one of the first and second dimensions, with increasing distance away from the first plane.
A multiply polarized antenna system, comprising a dielectric resonator antenna, and means for supplying electrical signals to a plurality of pairs of first and second points in the dielectric resonator antenna, with a phase difference between the electrical signals applied to the first and second points in each of the plurality of pairs of points, such that the first and second points in each pair couple to a desired mode of the dielectric resonator antenna, and such that each pair couples to a desired polarization of a transmitted or received signal in the form of an electromagnetic wave.
A dual polarized antenna system, comprising a dielectric resonator antenna, and means for supplying electrical signals to a first and second pairs of first and second points in the dielectric resonator antenna, with a phase difference between the electrical signals applied to the first and second points in each of the pairs of points, such that the first and second points in each pair couple to a desired mode of the dielectric resonator antenna, and such that the first and second pairs couple to respective orthogonal polarizations of a transmitted or received signal in the form of an electromagnetic wave.
A method of operation of an antenna system, comprising a dielectric resonator antenna, the method comprising simultaneously supplying an electrical signal to first and second points in the dielectric resonator antenna, with a phase difference therebetween, such that the first and second points each couple to a desired mode of the dielectric resonator antenna, and such that a frequency response of the antenna has two nulls in its return loss characteristic.
Dependencies are inferred from the claim text.