Device and method for crosstalk reduction in transmission lines

摘要

A system and method is provided for crosstalk reduction in a coupled transmission line on a multilayer structure. The coupled transmission line provides a high frequency signal such as from a local oscillator to an electronic component such as a mixer. The signal carried by the coupled transmission line may be buffered and asymmetrically tapped. The coupled transmission line may have individual parallel lines extending in the direction of current flow. The lines may carry current in opposite directions. Each line contains strips and/or is disposed on a different metallization layer. Strips on each metallization layer (before being routed to another metallization layer) may carry current in opposite directions and overlying strips on different metallization layers may carry current in opposite directions. Multiple strips of an individual line present on a single metallization layer may be disposed symmetrically around a centerline of the coupled transmission line.

主权项

1. A transceiver comprising:
a local oscillator configured to provide a local oscillator (LO) signal; an electronic component configured to receive radio frequency (RF) signals and to use the LO signal to process the RF signals; and a coupled transmission line configured to provide the LO signal from the local oscillator to the electronic component, wherein:
the coupled transmission line comprises a plurality of individual lines extending in parallel in a direction of current flow and configured to carry current in opposite directions such that a first individual line carries current in a first direction and a second individual line carries current in a second direction opposite the first direction,each of the plurality of individual lines in the coupled transmission line comprises a plurality of strips,a first plurality of strips of the first individual line carries current in the first direction and a second plurality of strips of the second individual line carries current in the second direction, andthe first plurality of strips is disposed within the second plurality of strips.