The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 09, 2024
Filed:
Oct. 02, 2023
Valmont Industries, Inc., Tucson, AZ (US);
Alexander Oberman, Tucson, AZ (US);
Mark R. Schmidt, Tubac, AZ (US);
VALMONT INDUSTRIES, INC., Tucson, AZ (US);
Abstract
Cellular base station antenna concealments, such as palm and tree concealments, utilize artificial branches with nonmetallic (e.g., polymeric) interfaces to avoid loose metal-to-metal connections to mitigate the generation of passive intermodulation (PIM) interference by the branches. Representative embodiments include 'palm concealments' with low-PIM artificial palm fronds, and “tree concealments” with low-PIM artificial tree branches. That is, “low-PIM fronds” and “low-PIM tree branches” are two representative examples of “low-PIM branches” illustrating representative embodiments of the invention. The low-PIM palm frond includes a nonmetallic (e.g., polymeric) sleeve positioned between a metal frond shaft and a metal frond receiver. A first example of the low-PIM tree branch includes nonmetallic (e.g., polymeric) fastener isolators positioned between metal fasteners and a metal tree branch receiver. A second example of the low-PIM tree branch includes a nonmetallic (e.g., polymeric) sleeve positioned between the metal tree branch receiver and a tree branch shaft.