Open AccessCompact, wideband impedance tuner using a three‐line‐microstrip structure
Author(s) -
Heredia J.,
Ribó M.,
Pradell L.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.0602
Subject(s) - tuner , microstrip , electrical impedance , smith chart , wideband , bandwidth (computing) , electronic engineering , microstrip antenna , electrical engineering , impedance matching , engineering , computer science , telecommunications , radio frequency , antenna (radio)
A novel three‐line‐microstrip compact impedance tuner is presented. It is based on a multimodal structure wherein six variable capacitances, implemented with two parallel‐connected varactors each, create multiple interactions among the three‐line‐microstrip modes in a reduced circuit area. Experimental results show better‐than‐70% coverage of the Smith chart in an 85% frequency bandwidth from 1.4 to 3.2 GHz.