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A compact wideband ring mixer utilizing a pair of PLANAR transitions for phase inversion
Author(s) -
Mohyuddin Wahab,
Kim YoungGon,
Woo Dong Sik,
Choi Hyun Chul,
Kim Kang Wook
Publication year - 2014
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.28478
Subject(s) - wideband , balun , planar , return loss , port (circuit theory) , microwave , bandwidth (computing) , electrical engineering , engineering , electronic engineering , telecommunications , materials science , computer science , antenna (radio) , computer graphics (images)
A new design of a compact wideband ring mixer is introduced in this article. The proposed mixer utilizes a compact ring structure comprising a pair of ultra‐wideband planar in‐phase and inverted‐phase transitions as a mixer balun. The implemented mixer has a number of desirable features such as wide bandwidth (∼120%), compact size, excellent port‐to‐port isolations, and return loss. The size of the proposed mixer is 33.2% of the conventional single‐balanced ring mixers. The measured results show flat conversion loss of ∼8.5 dB and greater than 20 dB port‐to‐port isolation from 3 to 12 GHz. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1919–1922, 2014