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An analysis of electromagnetic interference on RF circuits based on electromagnetic topology
Author(s) -
Kang WonJune,
Lee KangIn,
Shin JinWoo,
So JoonHo,
Chung YoungSeek
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28698
Subject(s) - electromagnetic interference , electronic engineering , electronic circuit , engineering , microwave , topology (electrical circuits) , microstrip , amplifier , electromagnetic radiation , electromagnetic compatibility , harmonic balance , conducted electromagnetic interference , transmission line , electrical engineering , transmission line matrix method , computational electromagnetics , nonlinear system , emi , physics , electromagnetic field , telecommunications , optics , cmos , quantum mechanics
ABSTRACT In this article, we propose a method of analysis of the intentional electromagnetic interference (IEMI) in radio frequency circuits that are directly exposed to an external electromagnetic wave, using electromagnetic topology (EMT). EMT solves IEMI problems, by a fast and efficient transformation of the main penetrating channels of the external electromagnetic wave in the target, into general equivalent transmission lines. To handle nonlinear devices, we combined EMT with the harmonic balance method, by applying the least square method to the experimental data of the devices. To verify the proposed method, we applied it to microstrip line circuits with passive loads, a dipole antenna, and a low noise amplifier, and compared the results with the experimental ones. The two results were in good agreement. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:2784–2789, 2014