Abstract: An RF device includes a signal layer disposed over a ground plane having radio frequency (RF) transmission lines configured and dimensioned to provide impedance matching along the RF lines. A shield is formed as a part of the RF lines and disposed below the RF choke of a DC current supply to form an intermediate capacitance between the choke and the shield to control parasitic effects.
Type:
Grant
Filed:
December 4, 2003
Date of Patent:
August 12, 2008
Assignee:
International Business Machines Corporation
Inventors:
Daniel M. Kuchta, Mark B. Ritter, Albert E. Ruehli, Christian Schuster