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Miniaturization of a broadband power divider for X‐band application based on GaAs technology
Author(s) -
Han Juzheng,
Liao Xiaoping
Publication year - 2017
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.30557
Subject(s) - miniaturization , broadband , return loss , wilkinson power divider , coplanar waveguide , monolithic microwave integrated circuit , electrical engineering , impedance matching , microwave , power dividers and directional couplers , electrical impedance , capacitor , optoelectronics , electric power transmission , insertion loss , transmission line , materials science , engineering , telecommunications , frequency divider , antenna (radio) , voltage , amplifier , cmos
In this letter, a miniaturized broadband power divider with novel configuration is proposed. Coplanar transmission lines of CPW and cascaded two sections of coupled ACPSs are utilized to achieve broadband performance. MIM capacitors are loaded at each ends of the ACPSs to realize size‐reduction along with ground equalization. Design equations are given in detail. The occupied area is about 3.5 × 0.6 mm 2 and a significant size reduction of 61% is achieved. The fabrication process of this power divider with coplanar transmission lines is compatible with GaAs MMIC process. Broadband performance and perfect impedance matching are revealed by the measured results that the return loss S 11 and S 22 are both lower than −15 dB across the entire X‐band, 8–12 GHz. Good isolation and dividing properties are obtained with S 23 better than −10 dB and S 21 around −3.5 dB. © 2017 Wiley Periodicals, Inc. Microwave Opt Technol Lett 59:1427–1431, 2017