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Coupled microstrip line Wilkinson power divider with compensating capacitor
Author(s) -
Wang Xiaolong,
Ma Zhewang,
Yoshikawa Masayuki
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.28839
Subject(s) - microstrip , capacitor , electrical engineering , capacitance , wilkinson power divider , microwave , equivalent circuit , engineering , electronic engineering , optoelectronics , physics , power dividers and directional couplers , telecommunications , voltage , frequency divider , electrode , quantum mechanics
In this article, π/4 coupled microstrip line is used in the design of two‐way Wilkinson power divider for compact circuit size. A capacitor is shunted to compensate the phase velocities between even and odd mode in coupled microstrip line and its position can be placed arbitrary in the coupled microstrip line. The capacitance value is determined by effective dielectric constants of substrate, coupling strength, and its position in the coupled microstrip line. Design charts, frequency responses, calculated bandwidths, and several design examples are presented. In experiment, one circuit was fabricated, the measurement results showed good agreement with theoretical results. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:328–332, 2015