Abstract: Example apparatuses and methods relating to antennas are provided. An example apparatus in the form of an antenna assembly includes a first conductor formed into a first helical structure wound around a central axis and a second conductor formed into a second helical structure wound around the central axis. The first helical structure may have a first coil sense and the second helical structure may have second coil sense that is opposite the first coil sense. The first conductor may have a first conductor proximal end and a first conductor distal end and the second conductor may have a second conductor proximal end and a second conductor distal end. The first conductor distal end may be adjacent the second conductor proximal end. The antenna assembly may further include first, second, and third ground planes with one disposed at each end of the conductors and one disposed between the conductors.

Abstract: Example apparatuses and methods relating to antennas are provided. An example apparatus in the form of an antenna assembly includes a first conductor formed into a first helical structure wound around a central axis and a second conductor formed into a second helical structure wound around the central axis. The first helical structure may have a first coil sense and the second helical structure may have second coil sense that is opposite the first coil sense. The first conductor may have a first conductor proximal end and a first conductor distal end and the second conductor may have a second conductor proximal end and a second conductor distal end. The first conductor distal end may be adjacent the second conductor proximal end. The antenna assembly may further include first, second, and third ground planes with one disposed at each end of the conductors and one disposed between the conductors.

Abstract: Example apparatuses and methods relating to antennas are provided. An example apparatus in the form of an antenna assembly includes a first conductor formed into a first helical structure wound around a central axis and a second conductor formed into a second helical structure wound around the central axis. The first helical structure may have a first coil sense and the second helical structure may have second coil sense that is opposite the first coil sense. The first conductor may have a first conductor proximal end and a first conductor distal end and the second conductor may have a second conductor proximal end and a second conductor distal end. The first conductor distal end may be adjacent the second conductor proximal end. The antenna assembly may further include first, second, and third ground planes with one disposed at each end of the conductors and one disposed between the conductors.

Abstract: Example apparatuses and methods relating to antennas are provided. An example apparatus in the form of an antenna assembly includes a first conductor structurally formed into a plurality of first conductor structural waves and a second conductor structurally formed into a plurality of second conductor structural waves. The first conductor and second conductor may be helically wound to form a bifilar helix structure having a proximal end and a distal end. The first conductor and the second conductor may be operatively coupled at the proximal end of the bifilar helix structure to form a signal feed point, and the first conductor and the second conductor are operatively coupled at the distal end of the bifilar helix structure to form a load point.

Abstract: Example apparatuses and methods relating to antennas are provided. An example apparatus in the form of an antenna assembly includes a first conductor structurally formed into a plurality of first conductor structural waves and a second conductor structurally formed into a plurality of second conductor structural waves. The first conductor and second conductor may be helically wound to form a bifilar helix structure having a proximal end and a distal end. The first conductor and the second conductor may be operatively coupled at the proximal end of the bifilar helix structure to form a signal feed point, and the first conductor and the second conductor are operatively coupled at the distal end of the bifilar helix structure to form a load point.

Abstract: Example apparatuses and methods relating to antennas are provided. An example apparatus in the form of an antenna assembly includes a first conductor formed into a first helical structure wound around a central axis and a second conductor formed into a second helical structure wound around the central axis. The first helical structure may have a first coil sense and the second helical structure may have second coil sense that is opposite the first coil sense. The first conductor may have a first conductor proximal end and a first conductor distal end and the second conductor may have a second conductor proximal end and a second conductor distal end. The first conductor distal end may be adjacent the second conductor proximal end. The antenna assembly may further include first, second, and third ground planes with one disposed at each end of the conductors and one disposed between the conductors.

Abstract: A device for detecting a presence of an object includes an optical phased array, a detector, a processing portion and an indicator. The optical phased array can transmit a first optical beam to a first location at a first time and can transmit a second optical beam to a second location at a second time. The detector can detect a first reflected beam based on the first optical beam and can detect a second reflected beam based on the second optical beam. The processing portion can determine the presence of the object based on the first reflected beam and the second reflected beam. The indicator can generate an indicator signal based on the presence of the object.

Abstract: A device for detecting a presence of an object includes an optical phased array, a detector, a processing portion and an indicator. The optical phased array can transmit a first optical beam to a first location at a first time and can transmit a second optical beam to a second location at a second time. The detector can detect a first reflected beam based on the first optical beam and can detect a second reflected beam based on the second optical beam. The processing portion can determine the presence of the object based on the first reflected beam and the second reflected beam. The indicator can generate an indicator signal based on the presence of the object.

Abstract: A device for detecting a presence of an object includes an optical phased array, a detector, a processing portion and an indicator. The optical phased array can transmit a first optical beam to a first location at a first time and can transmit a second optical beam to a second location at a second time. The detector can detect a first reflected beam based on the first optical beam and can detect a second reflected beam based on the second optical beam. The processing portion can determine the presence of the object based on the first reflected beam and the second reflected beam. The indicator can generate an indicator signal based on the presence of the object.

Abstract: The present invention provides a device is provided for use with a first through fourth light beams. The device includes a first through fourth waveguides and first through fourth light scattering portions. The first waveguide has a length and a width and is arranged to receive the first light beam, wherein the length is larger than the width. The second waveguide is parallel with the first waveguide and is arranged to receive the second light beam. The third waveguide is disposed perpendicularly to and intersecting with the first waveguide and the second waveguide. The third waveguide is arranged to receive the third light beam. The fourth waveguide is parallel with the third waveguide and is disposed perpendicularly to and intersecting with the first waveguide and the second waveguide. The fourth waveguide is arranged to receive the fourth light beam. The first light scattering portion is disposed at the intersection of the first waveguide and the third waveguide.

Abstract: A device for detecting a presence of an object includes an optical phased array, a detector, a processing portion and an indicator. The optical phased array can transmit a first optical beam to a first location at a first time and can transmit a second optical beam to a second location at a second time. The detector can detect a first reflected beam based on the first optical beam and can detect a second reflected beam based on the second optical beam. The processing portion can determine the presence of the object based on the first reflected beam and the second reflected beam. The indicator can generate an indicator signal based on the presence of the object.

Abstract: The present invention provides a device is provided for use with a first through fourth light beams. The device includes a first through fourth waveguides and first through fourth light scattering portions. The first waveguide has a length and a width and is arranged to receive the first light beam, wherein the length is larger than the width. The second waveguide is parallel with the first waveguide and is arranged to receive the second light beam. The third waveguide is disposed perpendicularly to and intersecting with the first waveguide and the second waveguide. The third waveguide is arranged to receive the third light beam. The fourth waveguide is parallel with the third waveguide and is disposed perpendicularly to and intersecting with the first waveguide and the second waveguide. The fourth waveguide is arranged to receive the fourth light beam. The first light scattering portion is disposed at the intersection of the first waveguide and the third waveguide.