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To compact branch‐line couplers using parallel high‐impedance transmission lines
Author(s) -
KhalajAmirhosseini Mohammad,
Yazdani Mohammad
Publication year - 2010
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.25369
Subject(s) - microstrip , electric power transmission , transmission line , microwave , electrical impedance , characteristic impedance , fabrication , electrical engineering , line (geometry) , electronic engineering , transmission (telecommunications) , engineering , microwave transmission , compact space , telecommunications , mathematics , geometry , medicine , alternative medicine , pathology , pure mathematics
In this article, a new way is proposed to compact the transmission lines of microstrip devices such as branch‐line couplers (BLCs).In this way, two unequal‐length high‐impedance (thin) transmission lines paralleling with each other are used instead of a single transmission line. The shorter and greater lines can be implemented in a right and meander forms, respectively. The usefulness of the proposed way was verified by designing, simulation, and fabrication of a compacted BLC at frequency 2 GHz. An area compactness of about 64.2% is achieved. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 1996–1999, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25369