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Analysis and optimization of wideband tapered directional couplers by DTM method

Ali Sadreghaeni, S. M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1002/mop.28449
  3. Abstract:
  4. In this article, a novel approach based on differential transfer matrix method is proposed for fast analysis and optimization of wideband planar tapered directional couplers. In this method, both even and odd modes can be analyzed independently to obtain overall scattering matrix. The new method accelerates the optimization time considerably in planar structures. An 8.34 dB tapered coupler in the frequency band of 1-12 GHz is designed and optimized in the form of offset stripline structure. The experimental result shows good agreement with theory
  5. Keywords:
  6. Differential transfer matrix ; Directional coupler ; Even and odd modes analysis ; Tapered coupler ; Frequency bands ; Optical waveguides ; Scattering parameters ; Transfer matrix method ; Differential transfer matrices ; Differential transfer matrix methods ; Even and odd mode ; Fast analysis ; Planar structure ; Scattering matrices ; Stripline structures ; Directional couplers
  7. Source: Microwave and Optical Technology Letters ; Vol. 56, issue. 8 , August , 2014 , pp. 1795-1798 ; ISSN: 08952477
  8. URL: http://onlinelibrary.wiley.com/doi/10.1002/mop.28449/abstract