Valmont Industries, Inc.

Mark R Schmidt

Alexander Oberman

Tree branch antenna concealment anchor

Palm frond antenna concealment

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.

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Tubac, AZ, United States of America

Mark R Schmidt