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US 2020/0052402 A1Published application
Cloaked low band elements for multiband radiating arrays
AssigneeCommScope Technologies LLC
InventorsOzgur Isik, Philip Raymond Gripo, Dushmantha Nuwan Prasanna Thalakotuna, Peter J. Liversidge
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Abstract
A multiband antenna, having a reflector, and a first array of first radiating elements having a first operational frequency band, the first radiating elements being a plurality of dipole arms, each dipole arm including a plurality of conductive segments coupled in series by a plurality of inductive elements; and a second array of second radiating elements having a second operational frequency band, wherein the plurality of conductive segments each have a length less than one-half wavelength at the second operational frequency band.
Claims19
A multiband antenna comprising:
- a reflector that has a longitudinal axis;
- a first column of high band radiating elements that are configured to operate in a first operational frequency band mounted on the reflector, the first column of high band radiating elements extending in parallel to the longitudinal axis of the reflector;
- a second column of high band radiating elements that are configured to operate in the first operational frequency band mounted on the reflector, the second column of high band radiating elements extending in parallel to the longitudinal axis of the reflector;
- a first column of low band radiating elements that are configured to operate in a second operational frequency band mounted on the reflector, the second operational frequency band being at frequencies that are lower than frequencies of the first operational frequency band, the first column of low band radiating elements extending in parallel to the longitudinal axis of the reflector between the first column of high band radiating elements and the second column of high band radiating elements;
- a first column of parasitic elements extending in parallel to the longitudinal axis of the reflector such that the first column of high band radiating elements is between the first column of parasitic elements and the first column of low band radiating elements, and
- a second column of parasitic elements extending in parallel to the longitudinal axis of the reflector such that the second column of high band radiating elements is between the second column of parasitic elements and the first column of low band radiating elements.
3 more elements
A multiband antenna comprising:
- a reflector that has a longitudinal axis;
- a first column of high band radiating elements that are configured to operate in a first operational frequency band mounted on the reflector, the first column of high band radiating elements extending in parallel to the longitudinal axis of the reflector;
- a second column of high band radiating elements that are configured to operate in the first operational frequency band mounted on the reflector, the second column of high band radiating elements extending in parallel to the longitudinal axis of the reflector;
- a first column of low band radiating elements that are configured to operate in a second operational frequency band mounted on the reflector, the second operational frequency band being at frequencies that are lower than frequencies of the first operational frequency band, the first column of low band radiating elements extending in parallel to the longitudinal axis of the reflector between the first column of high band radiating elements and the second column of high band radiating elements;
- a first column of parasitic elements extending in parallel to the longitudinal axis of the reflector such that the first column of high band radiating elements is between the first column of parasitic elements and the first column of low band radiating elements, and
- a second column of parasitic elements extending in parallel to the longitudinal axis of the reflector such that the second column of high band radiating elements is between the second column of parasitic elements and the first column of low band radiating elements,
- wherein each low band radiating element comprises a cross dipole radiating element that includes first and second dipole elements, each dipole element including first and second dipole arms,
- wherein each dipole arm comprises copper metallization on a dielectric substrate,
- wherein the first operational frequency band is the 1695-2690 MHz frequency band and the second operational frequency band is the 694-960 MHz frequency band, and
- wherein the first column of parasitic elements is adjacent a first side of the reflector and the second column of parasitic elements is adjacent a second side of the reflector.
7 more elements
Dependencies are inferred from the claim text.