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Dual‐band artificial transmission lines branch‐line coupler
Author(s) -
Monti Giuseppina,
Tarricone Luciano
Publication year - 2008
Publication title -
international journal of rf and microwave computer‐aided engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.335
H-Index - 39
eISSN - 1099-047X
pISSN - 1096-4290
DOI - 10.1002/mmce.20266
Subject(s) - hybrid coupler , electric power transmission , multi band device , microwave , transmission line , rat race coupler , flexibility (engineering) , dual (grammatical number) , line (geometry) , electrical engineering , electronic engineering , computer science , engineering , telecommunications , power dividers and directional couplers , mathematics , art , geometry , literature , antenna (radio) , statistics
By using short‐circuited Composite Right/Left‐Handed Transmission Lines as loading stubs, and Purely Right‐Handed Artificial Transmission Lines, a Dual‐Band Branch‐Line coupler is presented. The adoption of such technologies adds degrees of freedom with respect to other already proposed design techniques, thus allowing the development of a very compact device, and a larger flexibility in the choice of the two operating frequencies and corresponding bandwidths. © 2007 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2008.