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A tunable diplexer based on mixed coupling varactor‐tuned stepped‐impedance resonators
Author(s) -
Xu Jin
Publication year - 2016
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.29822
Subject(s) - diplexer , varicap , resonator , coupling (piping) , microwave , electrical impedance , band pass filter , electronic engineering , equivalent circuit , optoelectronics , electrical engineering , materials science , engineering , physics , telecommunications , voltage , capacitance , electrode , quantum mechanics , metallurgy
This article presents a novel tunable diplexer, which consists of two tunable bandpass channels based on a pair of mixed coupling varactor‐tuned stepped‐impedance resonators (VTSIRs), and a common‐T junction constructed by two three‐element T‐networks. Two channels of the proposed tunable diplexer can be either independently tuned or simultaneously tuned toward high/low frequencies and middle of the tuning range. Compact circuit size is achieved and good electrical performance can be observed within the tuning range. © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1469–1473, 2016