| US 7,522,812 B2 | ||
| Coupling of communications signals to a power line | ||
| Brent R. Zitting, Huntsville, Madison County, Ala. (US) | ||
| Assigned to International Broadband Electric Communications, Inc., Huntsville, Ala. (US) | ||
| Filed on Jun. 20, 2006, as Appl. No. 11/425,271. | ||
| Claims priority of provisional application 60/700038, filed on Jul. 15, 2005. | ||
| Prior Publication US 2007/0014529 A1, Jan. 18, 2007 | ||
| Int. Cl. G02B 6/00 (2006.01) | ||
| U.S. Cl. 385—147 [174/50; 340/854.9] | 26 Claims |
| 1. A system for communicating signals over a medium-voltage power line, the system comprising:
a communications device comprising at least one modem; and
a coupler comprising:
a coaxial connector coupled to the communications device;
an impedance transformer electrically coupled to the coaxial connector, the impedance transformer having a step-up ratio of
approximately 8:1;
a capacitor electrically coupled to the impedance transformer, the capacitor having a capacitance of approximately 0.05 microfarads;
a conductive metallic disk electrically coupled to the capacitor, the conductive metallic disk defining a substantially circular
opening adapted to accept a ground post from a lightning arrester; and
a circuit board, wherein the connector, the capacitor, the impedance transformer, and the conductive disk are coupled to the
circuit board.
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