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Arbitrary power division quadrature branch‐line coupler with harmonic suppression
Author(s) -
Gai Chao,
Jiao YongChang,
Zhao YuLong
Publication year - 2018
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.30949
Subject(s) - stopband , power dividers and directional couplers , planar , division (mathematics) , hybrid coupler , frequency divider , power (physics) , center frequency , harmonic , quadrature (astronomy) , electrical engineering , engineering , physics , electronic engineering , topology (electrical circuits) , optics , acoustics , computer science , mathematics , band pass filter , computer graphics (images) , arithmetic , quantum mechanics
A planar branch‐line coupler with arbitrary power division and harmonic suppression is proposed. A novel offsetting double‐side parallel‐strip T‐section is used for designing the coupler. To verify the design procedure, a prototype operating at 1.76 GHz with 10 dB power division ratio and a stopband up to nearly four times of the center frequency is simulated, fabricated and tested. The measured results agree well with the simulated ones.