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Design of an automatic impedance‐matching device
Author(s) -
Popov Mikhail,
He Sailing
Publication year - 1999
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/(sici)1098-2760(19990220)20:4<236::aid-mop5>3.0.co;2-n
Subject(s) - impedance matching , inductance , electrical impedance , capacitance , matching (statistics) , impedance bridging , transmission line , quarter wave impedance transformer , electrical engineering , engineering , voltage , microwave , electronic engineering , output impedance , input impedance , damping factor , physics , mathematics , telecommunications , electrode , statistics , quantum mechanics
An automatic impedance‐matching device using a sectioned transmission line attached with many switching reactive elements is described. The device can give a good impedance matching for a load with an arbitrary impedance. After the load impedance is determined by measuring the voltage amplitudes at the junction points of the matching line, the switching states of the reactive elements (switch off, or switch to a capacitance or an inductance) are determined by either a noniterative method or a genetic algorithm. ©1999 John Wiley & Sons, Inc. Microwave Opt Technol Lett 20: 236–240, 1999.