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A novel V‐band 90° hybrid using surface micromachining technology
Author(s) -
Chun YoungHoon,
Moon JuYoung,
Ko BaekSeok,
Baek TaeJong,
Kim SungChan,
Lim ByoungOk,
Rhee JinKoo,
Shin DongHoon
Publication year - 2006
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.21470
Subject(s) - surface micromachining , microstrip , microwave , coupling (piping) , insertion loss , materials science , optoelectronics , electronic engineering , engineering , electrical engineering , telecommunications , fabrication , medicine , alternative medicine , pathology , metallurgy
A novel 90° hybrid at the V‐band using surface micromachining technology is designed and measured. It employs a uniplanar structure which is composed of parallel coupled microstrip lines and delay lines. Compared with the conventional hybrids, cascaded parallel coupled lines with delay lines can make the coupling tighter as the number of coupled lines grows. The measured insertion loss is less than 2 dB and the phase imbalance is less than ±5° at 60 GHz. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 770–771, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21470