DocumentCode
2191697
Title
Frequency limits of the ultra-miniature circulator
Author
Kouam, C.N. ; Coupez, J.P. ; Toutain, S. ; Forterre, G. ; Desmarest, P.
Author_Institution
Lab. d´Electron. et des Syst. de Telecommun., Univ. de Bretagne Occidentale, Brest, France
fYear
1994
fDate
23-27 May 1994
Firstpage
929
Abstract
A lumped miniature circulator operating at 7 GHz is presented. The integration of both the capacitors and the inductances on the same ferrite substrate allows minimum size. The effects which limit the circulator operating at higher frequencies are analysed. The thick film layer technology used to produce the device and the design process of the circulator is described. We have used the numerous advantages of this technology to build a device higher than 5 GHz, the highest operating frequency found in the literature.<>
Keywords
circulators (microwave); ferrite devices; thick film devices; 7 GHz; ferrite substrate; frequency limits; lumped miniature circulator; operating frequency; thick film layer technology; ultra-miniature circulator; Capacitors; Ferrites; Frequency; Process design; Substrates; Thick films;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Symposium Digest, 1994., IEEE MTT-S International
Conference_Location
San Diego, CA, USA
ISSN
0149-645X
Print_ISBN
0-7803-1778-5
Type
conf
DOI
10.1109/MWSYM.1994.335205
Filename
335205
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