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Tunable impedance transformer using multiconductor coupled lines
Author(s) -
Jeong Jinho,
Kim Junghyun,
Jeon Sanggeun
Publication year - 2012
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.26690
Subject(s) - quarter wave impedance transformer , transformer , conductor , electrical engineering , electrical impedance , characteristic impedance , capacitance , microwave , engineering , electronic engineering , acoustics , impedance matching , materials science , physics , damping factor , voltage , telecommunications , electrode , quantum mechanics , composite material
A new tunable impedance transformer is presented using multiconductor coupled line of quarter‐wave length.The switches are connected at the ends of the conductor lines in the coupled line, and they are used to adjust the equivalent capacitance of the line. It leads to the variation of characteristic impedance of the quarter‐wave long line, resulting in the tunable impedance transformer. The measurement around 1.9 GHz shows that the characteristic impedance of the transformer using five‐conductor coupled line can be adjusted from 29.5 to 56.5 Ω. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:851–853, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26690