Parallel fed collinear dipole array antenna
AssigneeSkywire Broadband, Inc.
InventorsEdward G. Price, Richard F. Gordon
Life of this patent
Estimating the term…
Abstract
A parallel fed colinear dipole array antenna for broadcasting and receiving a signal of a selected wavelength. The antenna comprises a plurality of elongate dipole antennas attached end-to-end in a linear array. A power divider divides and transmits a signal in parallel to each of the dipole antennas. The linear spacing of the dipoles is correlated with the dimensions of the dipoles and the selected wavelength, such that the signals of the dipole antennas interfere with each other when broadcast, so as to focus signals which propagate substantially perpendicularly to the linear array, and to diminish other signals.
Claims22
An antenna for broadcasting and receiving a signal of a selected wavelength, comprising:
- a) a plurality of elongate dipole antennas, each comprising first and second collinear tubes of electrically conductive material having opposing ends and being oriented end-to-end in a linear array with a linear spacing between opposing ends of adjacent dipole antennas;
- b) a gap spacer of dielectric material disposed between the first and second collinear tubes;
- c) a power divider configured for dividing and transmitting an in-phase signal in parallel through a transmission line to each of the dipole antennas;
- and
- d) wherein the linear spacing of the dipole antennas in the array is selected such that the in-phase signals of the dipole antennas interfere with each other so as to focus that portion of the signal which propagates substantially perpendicularly to the linear array, and to diminish other portions of the signal.
An antenna for transmitting and receiving a signal of a selected wavelength, comprising:
- a) a base;
- b) a plurality of elongate dipole antennas having opposing ends and being oriented end-to-end in a linear array, the plurality of dipole antennas being interconnected by a plurality of dipole spacers, with a first of the plurality of dipole antennas being attached to a dipole spacer which is attached to the base, each of the dipole antennas further comprising:
- first and second collinear tubes of electrically conductive material;
- and
- a gap spacer disposed between the first and second collinear tubes;
- c) a Wilkinson divider associated with the base, having a plurality of conductive pathways with distal ends, and configured for receiving an input signal;
- and
- d) a plurality of drive lines, each drive line connecting one of the plurality of dipole antennas to the distal end of one of the conductive pathways of the Wilkinson divider, and each of the drive lines having an effective length equal to a multiple of about one half of the selected wavelength.
An antenna for broadcasting and receiving a signal of a selected wavelength, comprising:
- a) a plurality of elongate dipole antennas comprising first and second collinear tubes of electrically conductive material having opposing ends and being oriented end-to-end in a linear array;
- b) a gap spacer comprising dielectric material disposed between the first and second collinear tubes;
- and
- c) a power divider configured for receiving an input signal and dividing and transmitting the input signal in parallel to each of the dipole antennas.
An antenna for broadcasting a signal of a selected wavelength, comprising:
- a) a plurality of elongate dipole antennas, each comprising first and second collinear tubes of electrically conductive material having a length and opposing ends, and being oriented end-to-end in a linear array with a linear spacing between adjacent dipole antennas;
- b) a gap spacer of dielectric material disposed between the first and second collinear tubes;
- c) a power divider configured for dividing and transmitting an in-phase signal in parallel to each of the dipole antennas;
- and
- d) wherein the linear spacing of the dipole antennas in the array is correlated with the length of the dipoles and the selected wavelength, such that signals of the dipole antennas interfere with each other when broadcast, so as to focus signals which propagate substantially perpendicularly to the linear array, and to diminish other signals.
Dependencies are inferred from the claim text.