Eigen Mode Transmission of Signals

摘要

An apparatus includes a logging cable with exactly 3 conductors and an armor. A first transceiver is coupled to the three conductors and the armor of the logging cable. The first transceiver comprises a first-transceiver mode M1 port, a first-transceiver mode M2 port, and a first-transceiver mode M3 port. The first transceiver couples to a first mode on the three conductors and the armor of the logging cable corresponding to a signal on one of the first-transceiver ports, a second mode on the three conductors and the armor of the logging cable corresponding to a signal on one of the first-transceiver ports, and a third mode on the three conductors and the armor of the logging cable corresponding to a signal on one of the first-transceiver ports. The first mode, the second mode, and the third mode are mutually orthogonal.

主权项

1. An apparatus comprising:
a logging cable with exactly 3 conductors and an armor; a first transceiver coupled to the three conductors and the armor of the logging cable,
wherein the first transceiver comprises the following first-transceiver ports:a first-transceiver mode M1 port,a first-transceiver mode M2 port, anda first-transceiver mode M3 port; wherein the first transceiver couples to:
a first mode on the three conductors and the armor of the logging cable corresponding to a signal on one of the first-transceiver ports,a second mode on the three conductors and the armor of the logging cable corresponding to a signal on one of the first-transceiver ports, anda third mode on the three conductors and the armor of the logging cable corresponding to a signal on one of the first-transceiver ports; wherein the first mode, the second mode, and the third mode are mutually orthogonal; and wherein the first mode transmits an alternating current over the armor and at least one of the 3 conductors.