Characterisation of passive intermodulation in passive RF devices with X-parameters

Author

Kozlov, Dmitry S. ; Shitvov, Alexey P. ; Schuchinsky, Alexander G.

Author_Institution

Inst. of Electron., Commun. & Inf. Technol., Queen´s Univ. Belfast, Belfast, UK

fYear

2014

fDate

10-11 Nov. 2014

Firstpage

64

Lastpage

67

Abstract

A novel approach to the modelling of passive intermodulation (PIM) generation in passive components with distributed weak nonlinearities is outlined. Based upon the formalism of X-parameters, it provides a unified framework for co-design of antenna beamforming networks, filters, combiners, phase shifters and other passive and active devices containing nonlinearities at RF front-end. The effects of discontinuities and complex circuit layouts can be efficiently evaluated with the aid of the equivalent networks of the canonical nonlinear elements. The main concepts are illustrated by examples of numerical simulations of PIM generation in the transmission lines and comparison with the measurement results.

Keywords

intermodulation; passive networks; PIM generation; X-parameters; active devices; antenna beamforming networks; combiners; distributed weak nonlinearities; filters; passive RF devices; passive components; passive intermodulation; phase shifters; transmission lines; Capacitors; Computational modeling; Equivalent circuits; Harmonic analysis; Integrated circuit modeling; Radio frequency; Transmission line measurements; X-parameters; distributed nonlinearity; intermodulation distortion; passive intermodulation (PIM);

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Conference (LAPC), 2014 Loughborough

Conference_Location

Loughborough

Type

conf

DOI

10.1109/LAPC.2014.6996321

Filename

6996321