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Effect of tapering shape on performance of broadside‐coupled directional couplers
Author(s) -
Abbosh Amin M.
Publication year - 2009
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.24325
Subject(s) - tapering , broadside , bandwidth (computing) , microwave , regular polygon , optics , power dividers and directional couplers , engineering , acoustics , physics , telecommunications , computer science , mathematics , geometry , computer graphics (images)
A theoretical model is used to investigate effect of the tapering shape on performance of the broadside‐coupled directional coupler. It is shown that the tapering shape has a significant effect on the overall performance. Concave shapes give a broader bandwidth compared with the convex shapes. The model also shows that a proper choice of the tapering shape can result in a significant improvement in the performance across a wide bandwidth. The theoretical findings of the model are supported by simulations, and measurements. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1285–1288, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24325