Title :
Characterisation of nonlinear distortion and intermodulation in passive devices and antennas
Author :
Shitvov, Alexey ; Schuchinsky, Alexander G. ; Steer, Michael B. ; Wetherington, Joshua M.
Author_Institution :
Sch. of Electron., Electr. Eng. & Comput. Sci., Queen´s Univ. of Belfast, Belfast, UK
Abstract :
The paper presents a conceptual discussion of the characterisation and phenomenology of passive intermodulation (PIM) by the localised and distributed nonlinearities in passive devices and antennas. The PIM distinctive nature and its impact on signal distortions are examined in comparison with similar effects in power amplifiers. The main features of PIM generation are discussed and illustrated by the example of PIM due to electro-thermal nonlinearity. The issues of measurement, discrimination and modelling of PIM generated by nonlinearities in passive RF components and antennas are addressed.
Keywords :
antennas; intermodulation distortion; passive networks; power amplifiers; PIM generation; antennas; distributed nonlinearity; electrothermal nonlinearity; intermodulation distortion; localised nonlinearity; nonlinear distortion characterisation; passive RF components; passive devices; passive intermodulation phenomenology; power amplifiers; signal distortions; Antenna measurements; Antennas; Microwave communication; Nonlinear distortion; Radio frequency; antennas; nonlinear distortion; nonlinear measurement; passive intermodulation; printed circuits;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6902055
