Patent ID: 7072385

Claim:
A DSL repeater for improving transmission of POTS band and DSL band signals over a local loop, the repeater comprising: an upstream signal amplifier for amplifying upstream DSL signals; a downstream signal amplifier for amplifying downstream DSL signals; and a load coil disposed in parallel with the upstream and downstream signal amplifiers for improving the transmission of POTS band signals over the local loop, wherein the load coil comprises: a first inductor including a first winding and a first core, the first winding having upstream and downstream ends and a first intra-winding capacitance; a second inductor including a second winding and a second core, the second winding having upstream and downstream ends and having a second intra-winding capacitance; a first compensating capacitor disposed between the upstream end of the first inductor and the downstream end of the second inductor to offset at least a portion of the first and second intra-winding capacitances for improving the impedance of the load coil to DSL-band signals; and a second compensating capacitor disposed between the upstream end of the second inductor and the downstream end of the first inductor to offset at least a portion of the first and second intra-winding capacitances for improving the impedance of the load coil to DSL-band signals.