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Engineered Passive Nonlinearities for Broadband Passive Intermodulation Distortion Mitigation

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3 Author(s)
Justin Henrie ; Electr. & Comput. Eng. Dept., Purdue Univ., West Lafayette, IN, USA ; Andrew Christianson ; William J. Chappell

By adding controlled thicknesses of nickel and gold plating to the conductors of a coaxial transmission line, the magnitude of passive intermodulation produced by the transmission line can be controlled with precision. Theoretical predictions of distortion magnitude as a function of plating thicknesses are presented, along with an experimental validation. These adjustable-magnitude passive intermodulation sources are used to give a fourfold improvement in the bandwidth of techniques presented previously, demonstrating that cancellation can for the first time be achieved in bandwidths needed for cellular systems.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:19 ,  Issue: 10 )