08212635 is referenced by 193 patents and cites 6 patents.

The RF signal generated by a ZigBee radio on the outside of a building structure is conveyed to the interior of the building by guiding it along an electric cable bundle that passes through the building's wall to supply domestic electric power to the interior of the structure. The RF signal is launched by a unique coupler comprising a pair of insulated foil conductors.

Title
Surface wave coupler
Application Number
12/653167
Publication Number
8212635 (B2)
Application Date
December 8, 2009
Publication Date
July 3, 2012
Inventor
Harry R Worstell
Florham Park
NJ, US
Robert R Miller II
Convent Station
NJ, US
Agent
Ronald D Slusky
Assignee
AT&T Intellectual Property I
NV, US
IPC
H04B 3/56
H01P 5/18
H01P 3/10
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