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A novel tunable microwave filter integrated power dividers using liquid crystal
Author(s) -
Jiang Di,
Chen Hui,
Li Xiang,
He Zhaosheng,
Shen Mengkui
Publication year - 2015
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.29377
Subject(s) - microwave , microstrip , filter (signal processing) , ground plane , power dividers and directional couplers , materials science , power (physics) , optoelectronics , band pass filter , electronic engineering , electrical engineering , engineering , telecommunications , physics , antenna (radio) , quantum mechanics
This article presents design considerations of a tunable microwave filter integrated power divider based on highly anisotropic liquid crystals (LCs), which helps to reduce the circuit size. The proposed device comprising a thin LC layer between a ground plane and a directly coupled inverted microstrip line exhibits the equal power splitting function with a tunable bandpass response. The integrated device results in sharp rejection and smaller circuit area, as compared with the cascaded connection of an equal power divider and tunable microwave filter. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2539–2543, 2015
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