Cloaked low band elements for multiband radiating arrays
AssigneeOutdoor Wireless Networks 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.
Claims17
A multi-band base station antenna, comprising:
- a reflector;
- a first array of first frequency band cross-dipole radiating elements mounted on the reflector;
- a second array of second frequency band cross-dipole radiating elements mounted on the reflector, where the lowest frequency in the second frequency band exceeds the highest frequency in the first frequency band;
- and
- a plurality of parasitic elements, where a first of the parasitic elements comprises a plurality of conductive segments and a plurality of metallization tracks, where the metallization tracks are narrower than the conductive segments, and each metallization track electrically connects a respective pair of the conductive segments.
A parasitic element for a base station antenna, comprising:
- at least four conductive segments;
- and
- at least three metallization tracks,
- wherein the metallization tracks are narrower than the conductive segments, and wherein each metallization track electrically connects a respective pair of the conductive segments.
A parasitic element for a base station antenna, comprising:
- at least four conductive segments;
- and
- at least three inductors,
- wherein each inductor electrically connects a respective pair of the conductive segments.
Dependencies are inferred from the claim text.