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Microstrip circulator made of a magnetized ferrite sphere
Author(s) -
Yung Edward K. N.,
Dou W. B.,
Zhang D. G.,
Chen R. S.
Publication year - 2000
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 - 10.1002/1098-2760(20010120)28:2<130::aid-mop16>3.0.co;2-q
Subject(s) - circulator , ferrite (magnet) , microstrip , microwave , materials science , insertion loss , electrical engineering , optoelectronics , engineering , composite material , telecommunications
A new novel microstrip circulator made of a magnetized ferrite sphere is developed. The microstrip Y‐junction is made by conventional photolithography; a ferrite sphere covered by a metal cap is placed into the hole at the junction center of three microstrip arms, and is fixed firmly by a low‐loss adhesive. The adhesive can be solved easily by ethyl alcohol. So it is easy to change the circulating frequency of the circulator simply by replacing the ferrite sphere with different diameters. Experimental results at Ka‐band are presented. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 28: 130–131, 2001.